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-rw-r--r--stdio-common/vfprintf-internal.c2364
1 files changed, 2364 insertions, 0 deletions
diff --git a/stdio-common/vfprintf-internal.c b/stdio-common/vfprintf-internal.c
new file mode 100644
index 0000000000..b0c86e99bd
--- /dev/null
+++ b/stdio-common/vfprintf-internal.c
@@ -0,0 +1,2364 @@
+/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <array_length.h>
+#include <ctype.h>
+#include <limits.h>
+#include <printf.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <wchar.h>
+#include <libc-lock.h>
+#include <sys/param.h>
+#include <_itoa.h>
+#include <locale/localeinfo.h>
+#include <stdio.h>
+#include <scratch_buffer.h>
+
+/* This code is shared between the standard stdio implementation found
+   in GNU C library and the libio implementation originally found in
+   GNU libg++.
+
+   Beside this it is also shared between the normal and wide character
+   implementation as defined in ISO/IEC 9899:1990/Amendment 1:1995.  */
+
+#include <libioP.h>
+
+#ifdef COMPILE_WPRINTF
+#include <wctype.h>
+#endif
+
+/* In some cases we need extra space for all the output which is not
+   counted in the width of the string. We assume 32 characters is
+   enough.  */
+#define EXTSIZ		32
+#define ARGCHECK(S, Format) \
+  do									      \
+    {									      \
+      /* Check file argument for consistence.  */			      \
+      CHECK_FILE (S, -1);						      \
+      if (S->_flags & _IO_NO_WRITES)					      \
+	{								      \
+	  S->_flags |= _IO_ERR_SEEN;					      \
+	  __set_errno (EBADF);						      \
+	  return -1;							      \
+	}								      \
+      if (Format == NULL)						      \
+	{								      \
+	  __set_errno (EINVAL);						      \
+	  return -1;							      \
+	}								      \
+    } while (0)
+#define UNBUFFERED_P(S) ((S)->_flags & _IO_UNBUFFERED)
+
+#define done_add(val) \
+  do {									      \
+    unsigned int _val = val;						      \
+    assert ((unsigned int) done < (unsigned int) INT_MAX);		      \
+    if (__glibc_unlikely (INT_MAX - done < _val))			      \
+      {									      \
+	done = -1;							      \
+	 __set_errno (EOVERFLOW);					      \
+	goto all_done;							      \
+      }									      \
+    done += _val;							      \
+  } while (0)
+
+#ifndef COMPILE_WPRINTF
+# define vfprintf	__vfprintf_internal
+# define CHAR_T		char
+# define UCHAR_T	unsigned char
+# define INT_T		int
+typedef const char *THOUSANDS_SEP_T;
+# define L_(Str)	Str
+# define ISDIGIT(Ch)	((unsigned int) ((Ch) - '0') < 10)
+# define STR_LEN(Str)	strlen (Str)
+
+# define PUT(F, S, N)	_IO_sputn ((F), (S), (N))
+# define PAD(Padchar) \
+  do {									      \
+    if (width > 0)							      \
+      {									      \
+	ssize_t written = _IO_padn (s, (Padchar), width);		      \
+	if (__glibc_unlikely (written != width))			      \
+	  {								      \
+	    done = -1;							      \
+	    goto all_done;						      \
+	  }								      \
+	done_add (written);						      \
+      }									      \
+  } while (0)
+# define PUTC(C, F)	_IO_putc_unlocked (C, F)
+# define ORIENT		if (_IO_vtable_offset (s) == 0 && _IO_fwide (s, -1) != -1)\
+			  return -1
+#else
+# define vfprintf	__vfwprintf_internal
+# define CHAR_T		wchar_t
+/* This is a hack!!!  There should be a type uwchar_t.  */
+# define UCHAR_T	unsigned int /* uwchar_t */
+# define INT_T		wint_t
+typedef wchar_t THOUSANDS_SEP_T;
+# define L_(Str)	L##Str
+# define ISDIGIT(Ch)	((unsigned int) ((Ch) - L'0') < 10)
+# define STR_LEN(Str)	__wcslen (Str)
+
+# include <_itowa.h>
+
+# define PUT(F, S, N)	_IO_sputn ((F), (S), (N))
+# define PAD(Padchar) \
+  do {									      \
+    if (width > 0)							      \
+      {									      \
+	ssize_t written = _IO_wpadn (s, (Padchar), width);		      \
+	if (__glibc_unlikely (written != width))			      \
+	  {								      \
+	    done = -1;							      \
+	    goto all_done;						      \
+	  }								      \
+	done_add (written);						      \
+      }									      \
+  } while (0)
+# define PUTC(C, F)	_IO_putwc_unlocked (C, F)
+# define ORIENT		if (_IO_fwide (s, 1) != 1) return -1
+
+# undef _itoa
+# define _itoa(Val, Buf, Base, Case) _itowa (Val, Buf, Base, Case)
+# define _itoa_word(Val, Buf, Base, Case) _itowa_word (Val, Buf, Base, Case)
+# undef EOF
+# define EOF WEOF
+#endif
+
+#include "_i18n_number.h"
+
+/* Include the shared code for parsing the format string.  */
+#include "printf-parse.h"
+
+
+#define	outchar(Ch)							      \
+  do									      \
+    {									      \
+      const INT_T outc = (Ch);						      \
+      if (PUTC (outc, s) == EOF || done == INT_MAX)			      \
+	{								      \
+	  done = -1;							      \
+	  goto all_done;						      \
+	}								      \
+      ++done;								      \
+    }									      \
+  while (0)
+
+#define outstring(String, Len)						      \
+  do									      \
+    {									      \
+      assert ((size_t) done <= (size_t) INT_MAX);			      \
+      if ((size_t) PUT (s, (String), (Len)) != (size_t) (Len))		      \
+	{								      \
+	  done = -1;							      \
+	  goto all_done;						      \
+	}								      \
+      if (__glibc_unlikely (INT_MAX - done < (Len)))			      \
+      {									      \
+	done = -1;							      \
+	 __set_errno (EOVERFLOW);					      \
+	goto all_done;							      \
+      }									      \
+      done += (Len);							      \
+    }									      \
+  while (0)
+
+/* For handling long_double and longlong we use the same flag.  If
+   `long' and `long long' are effectively the same type define it to
+   zero.  */
+#if LONG_MAX == LONG_LONG_MAX
+# define is_longlong 0
+#else
+# define is_longlong is_long_double
+#endif
+
+/* If `long' and `int' is effectively the same type we don't have to
+   handle `long separately.  */
+#if INT_MAX == LONG_MAX
+# define is_long_num	0
+#else
+# define is_long_num	is_long
+#endif
+
+
+/* Global constants.  */
+static const CHAR_T null[] = L_("(null)");
+
+/* Size of the work_buffer variable (in characters, not bytes.  */
+enum { WORK_BUFFER_SIZE = 1000 / sizeof (CHAR_T) };
+
+/* This table maps a character into a number representing a class.  In
+   each step there is a destination label for each class.  */
+static const uint8_t jump_table[] =
+  {
+    /* ' ' */  1,            0,            0, /* '#' */  4,
+	       0, /* '%' */ 14,            0, /* '\''*/  6,
+	       0,            0, /* '*' */  7, /* '+' */  2,
+	       0, /* '-' */  3, /* '.' */  9,            0,
+    /* '0' */  5, /* '1' */  8, /* '2' */  8, /* '3' */  8,
+    /* '4' */  8, /* '5' */  8, /* '6' */  8, /* '7' */  8,
+    /* '8' */  8, /* '9' */  8,            0,            0,
+	       0,            0,            0,            0,
+	       0, /* 'A' */ 26,            0, /* 'C' */ 25,
+	       0, /* 'E' */ 19, /* F */   19, /* 'G' */ 19,
+	       0, /* 'I' */ 29,            0,            0,
+    /* 'L' */ 12,            0,            0,            0,
+	       0,            0,            0, /* 'S' */ 21,
+	       0,            0,            0,            0,
+    /* 'X' */ 18,            0, /* 'Z' */ 13,            0,
+	       0,            0,            0,            0,
+	       0, /* 'a' */ 26,            0, /* 'c' */ 20,
+    /* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
+    /* 'h' */ 10, /* 'i' */ 15, /* 'j' */ 28,            0,
+    /* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
+    /* 'p' */ 22, /* 'q' */ 12,            0, /* 's' */ 21,
+    /* 't' */ 27, /* 'u' */ 16,            0,            0,
+    /* 'x' */ 18,            0, /* 'z' */ 13
+  };
+
+#define NOT_IN_JUMP_RANGE(Ch) ((Ch) < L_(' ') || (Ch) > L_('z'))
+#define CHAR_CLASS(Ch) (jump_table[(INT_T) (Ch) - L_(' ')])
+#define LABEL(Name) do_##Name
+#ifdef SHARED
+  /* 'int' is enough and it saves some space on 64 bit systems.  */
+# define JUMP_TABLE_TYPE const int
+# define JUMP_TABLE_BASE_LABEL do_form_unknown
+# define REF(Name) &&do_##Name - &&JUMP_TABLE_BASE_LABEL
+# define JUMP(ChExpr, table)						      \
+      do								      \
+	{								      \
+	  int offset;							      \
+	  void *ptr;							      \
+	  spec = (ChExpr);						      \
+	  offset = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown)	      \
+	    : table[CHAR_CLASS (spec)];					      \
+	  ptr = &&JUMP_TABLE_BASE_LABEL + offset;			      \
+	  goto *ptr;							      \
+	}								      \
+      while (0)
+#else
+# define JUMP_TABLE_TYPE const void *const
+# define REF(Name) &&do_##Name
+# define JUMP(ChExpr, table)						      \
+      do								      \
+	{								      \
+	  const void *ptr;						      \
+	  spec = (ChExpr);						      \
+	  ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown)		      \
+	    : table[CHAR_CLASS (spec)];					      \
+	  goto *ptr;							      \
+	}								      \
+      while (0)
+#endif
+
+#define STEP0_3_TABLE							      \
+    /* Step 0: at the beginning.  */					      \
+    static JUMP_TABLE_TYPE step0_jumps[30] =				      \
+    {									      \
+      REF (form_unknown),						      \
+      REF (flag_space),		/* for ' ' */				      \
+      REF (flag_plus),		/* for '+' */				      \
+      REF (flag_minus),		/* for '-' */				      \
+      REF (flag_hash),		/* for '<hash>' */			      \
+      REF (flag_zero),		/* for '0' */				      \
+      REF (flag_quote),		/* for '\'' */				      \
+      REF (width_asterics),	/* for '*' */				      \
+      REF (width),		/* for '1'...'9' */			      \
+      REF (precision),		/* for '.' */				      \
+      REF (mod_half),		/* for 'h' */				      \
+      REF (mod_long),		/* for 'l' */				      \
+      REF (mod_longlong),	/* for 'L', 'q' */			      \
+      REF (mod_size_t),		/* for 'z', 'Z' */			      \
+      REF (form_percent),	/* for '%' */				      \
+      REF (form_integer),	/* for 'd', 'i' */			      \
+      REF (form_unsigned),	/* for 'u' */				      \
+      REF (form_octal),		/* for 'o' */				      \
+      REF (form_hexa),		/* for 'X', 'x' */			      \
+      REF (form_float),		/* for 'E', 'e', 'F', 'f', 'G', 'g' */	      \
+      REF (form_character),	/* for 'c' */				      \
+      REF (form_string),	/* for 's', 'S' */			      \
+      REF (form_pointer),	/* for 'p' */				      \
+      REF (form_number),	/* for 'n' */				      \
+      REF (form_strerror),	/* for 'm' */				      \
+      REF (form_wcharacter),	/* for 'C' */				      \
+      REF (form_floathex),	/* for 'A', 'a' */			      \
+      REF (mod_ptrdiff_t),      /* for 't' */				      \
+      REF (mod_intmax_t),       /* for 'j' */				      \
+      REF (flag_i18n),		/* for 'I' */				      \
+    };									      \
+    /* Step 1: after processing width.  */				      \
+    static JUMP_TABLE_TYPE step1_jumps[30] =				      \
+    {									      \
+      REF (form_unknown),						      \
+      REF (form_unknown),	/* for ' ' */				      \
+      REF (form_unknown),	/* for '+' */				      \
+      REF (form_unknown),	/* for '-' */				      \
+      REF (form_unknown),	/* for '<hash>' */			      \
+      REF (form_unknown),	/* for '0' */				      \
+      REF (form_unknown),	/* for '\'' */				      \
+      REF (form_unknown),	/* for '*' */				      \
+      REF (form_unknown),	/* for '1'...'9' */			      \
+      REF (precision),		/* for '.' */				      \
+      REF (mod_half),		/* for 'h' */				      \
+      REF (mod_long),		/* for 'l' */				      \
+      REF (mod_longlong),	/* for 'L', 'q' */			      \
+      REF (mod_size_t),		/* for 'z', 'Z' */			      \
+      REF (form_percent),	/* for '%' */				      \
+      REF (form_integer),	/* for 'd', 'i' */			      \
+      REF (form_unsigned),	/* for 'u' */				      \
+      REF (form_octal),		/* for 'o' */				      \
+      REF (form_hexa),		/* for 'X', 'x' */			      \
+      REF (form_float),		/* for 'E', 'e', 'F', 'f', 'G', 'g' */	      \
+      REF (form_character),	/* for 'c' */				      \
+      REF (form_string),	/* for 's', 'S' */			      \
+      REF (form_pointer),	/* for 'p' */				      \
+      REF (form_number),	/* for 'n' */				      \
+      REF (form_strerror),	/* for 'm' */				      \
+      REF (form_wcharacter),	/* for 'C' */				      \
+      REF (form_floathex),	/* for 'A', 'a' */			      \
+      REF (mod_ptrdiff_t),      /* for 't' */				      \
+      REF (mod_intmax_t),       /* for 'j' */				      \
+      REF (form_unknown)        /* for 'I' */				      \
+    };									      \
+    /* Step 2: after processing precision.  */				      \
+    static JUMP_TABLE_TYPE step2_jumps[30] =				      \
+    {									      \
+      REF (form_unknown),						      \
+      REF (form_unknown),	/* for ' ' */				      \
+      REF (form_unknown),	/* for '+' */				      \
+      REF (form_unknown),	/* for '-' */				      \
+      REF (form_unknown),	/* for '<hash>' */			      \
+      REF (form_unknown),	/* for '0' */				      \
+      REF (form_unknown),	/* for '\'' */				      \
+      REF (form_unknown),	/* for '*' */				      \
+      REF (form_unknown),	/* for '1'...'9' */			      \
+      REF (form_unknown),	/* for '.' */				      \
+      REF (mod_half),		/* for 'h' */				      \
+      REF (mod_long),		/* for 'l' */				      \
+      REF (mod_longlong),	/* for 'L', 'q' */			      \
+      REF (mod_size_t),		/* for 'z', 'Z' */			      \
+      REF (form_percent),	/* for '%' */				      \
+      REF (form_integer),	/* for 'd', 'i' */			      \
+      REF (form_unsigned),	/* for 'u' */				      \
+      REF (form_octal),		/* for 'o' */				      \
+      REF (form_hexa),		/* for 'X', 'x' */			      \
+      REF (form_float),		/* for 'E', 'e', 'F', 'f', 'G', 'g' */	      \
+      REF (form_character),	/* for 'c' */				      \
+      REF (form_string),	/* for 's', 'S' */			      \
+      REF (form_pointer),	/* for 'p' */				      \
+      REF (form_number),	/* for 'n' */				      \
+      REF (form_strerror),	/* for 'm' */				      \
+      REF (form_wcharacter),	/* for 'C' */				      \
+      REF (form_floathex),	/* for 'A', 'a' */			      \
+      REF (mod_ptrdiff_t),      /* for 't' */				      \
+      REF (mod_intmax_t),       /* for 'j' */				      \
+      REF (form_unknown)        /* for 'I' */				      \
+    };									      \
+    /* Step 3a: after processing first 'h' modifier.  */		      \
+    static JUMP_TABLE_TYPE step3a_jumps[30] =				      \
+    {									      \
+      REF (form_unknown),						      \
+      REF (form_unknown),	/* for ' ' */				      \
+      REF (form_unknown),	/* for '+' */				      \
+      REF (form_unknown),	/* for '-' */				      \
+      REF (form_unknown),	/* for '<hash>' */			      \
+      REF (form_unknown),	/* for '0' */				      \
+      REF (form_unknown),	/* for '\'' */				      \
+      REF (form_unknown),	/* for '*' */				      \
+      REF (form_unknown),	/* for '1'...'9' */			      \
+      REF (form_unknown),	/* for '.' */				      \
+      REF (mod_halfhalf),	/* for 'h' */				      \
+      REF (form_unknown),	/* for 'l' */				      \
+      REF (form_unknown),	/* for 'L', 'q' */			      \
+      REF (form_unknown),	/* for 'z', 'Z' */			      \
+      REF (form_percent),	/* for '%' */				      \
+      REF (form_integer),	/* for 'd', 'i' */			      \
+      REF (form_unsigned),	/* for 'u' */				      \
+      REF (form_octal),		/* for 'o' */				      \
+      REF (form_hexa),		/* for 'X', 'x' */			      \
+      REF (form_unknown),	/* for 'E', 'e', 'F', 'f', 'G', 'g' */	      \
+      REF (form_unknown),	/* for 'c' */				      \
+      REF (form_unknown),	/* for 's', 'S' */			      \
+      REF (form_unknown),	/* for 'p' */				      \
+      REF (form_number),	/* for 'n' */				      \
+      REF (form_unknown),	/* for 'm' */				      \
+      REF (form_unknown),	/* for 'C' */				      \
+      REF (form_unknown),	/* for 'A', 'a' */			      \
+      REF (form_unknown),       /* for 't' */				      \
+      REF (form_unknown),       /* for 'j' */				      \
+      REF (form_unknown)        /* for 'I' */				      \
+    };									      \
+    /* Step 3b: after processing first 'l' modifier.  */		      \
+    static JUMP_TABLE_TYPE step3b_jumps[30] =				      \
+    {									      \
+      REF (form_unknown),						      \
+      REF (form_unknown),	/* for ' ' */				      \
+      REF (form_unknown),	/* for '+' */				      \
+      REF (form_unknown),	/* for '-' */				      \
+      REF (form_unknown),	/* for '<hash>' */			      \
+      REF (form_unknown),	/* for '0' */				      \
+      REF (form_unknown),	/* for '\'' */				      \
+      REF (form_unknown),	/* for '*' */				      \
+      REF (form_unknown),	/* for '1'...'9' */			      \
+      REF (form_unknown),	/* for '.' */				      \
+      REF (form_unknown),	/* for 'h' */				      \
+      REF (mod_longlong),	/* for 'l' */				      \
+      REF (form_unknown),	/* for 'L', 'q' */			      \
+      REF (form_unknown),	/* for 'z', 'Z' */			      \
+      REF (form_percent),	/* for '%' */				      \
+      REF (form_integer),	/* for 'd', 'i' */			      \
+      REF (form_unsigned),	/* for 'u' */				      \
+      REF (form_octal),		/* for 'o' */				      \
+      REF (form_hexa),		/* for 'X', 'x' */			      \
+      REF (form_float),		/* for 'E', 'e', 'F', 'f', 'G', 'g' */	      \
+      REF (form_character),	/* for 'c' */				      \
+      REF (form_string),	/* for 's', 'S' */			      \
+      REF (form_pointer),	/* for 'p' */				      \
+      REF (form_number),	/* for 'n' */				      \
+      REF (form_strerror),	/* for 'm' */				      \
+      REF (form_wcharacter),	/* for 'C' */				      \
+      REF (form_floathex),	/* for 'A', 'a' */			      \
+      REF (form_unknown),       /* for 't' */				      \
+      REF (form_unknown),       /* for 'j' */				      \
+      REF (form_unknown)        /* for 'I' */				      \
+    }
+
+#define STEP4_TABLE							      \
+    /* Step 4: processing format specifier.  */				      \
+    static JUMP_TABLE_TYPE step4_jumps[30] =				      \
+    {									      \
+      REF (form_unknown),						      \
+      REF (form_unknown),	/* for ' ' */				      \
+      REF (form_unknown),	/* for '+' */				      \
+      REF (form_unknown),	/* for '-' */				      \
+      REF (form_unknown),	/* for '<hash>' */			      \
+      REF (form_unknown),	/* for '0' */				      \
+      REF (form_unknown),	/* for '\'' */				      \
+      REF (form_unknown),	/* for '*' */				      \
+      REF (form_unknown),	/* for '1'...'9' */			      \
+      REF (form_unknown),	/* for '.' */				      \
+      REF (form_unknown),	/* for 'h' */				      \
+      REF (form_unknown),	/* for 'l' */				      \
+      REF (form_unknown),	/* for 'L', 'q' */			      \
+      REF (form_unknown),	/* for 'z', 'Z' */			      \
+      REF (form_percent),	/* for '%' */				      \
+      REF (form_integer),	/* for 'd', 'i' */			      \
+      REF (form_unsigned),	/* for 'u' */				      \
+      REF (form_octal),		/* for 'o' */				      \
+      REF (form_hexa),		/* for 'X', 'x' */			      \
+      REF (form_float),		/* for 'E', 'e', 'F', 'f', 'G', 'g' */	      \
+      REF (form_character),	/* for 'c' */				      \
+      REF (form_string),	/* for 's', 'S' */			      \
+      REF (form_pointer),	/* for 'p' */				      \
+      REF (form_number),	/* for 'n' */				      \
+      REF (form_strerror),	/* for 'm' */				      \
+      REF (form_wcharacter),	/* for 'C' */				      \
+      REF (form_floathex),	/* for 'A', 'a' */			      \
+      REF (form_unknown),       /* for 't' */				      \
+      REF (form_unknown),       /* for 'j' */				      \
+      REF (form_unknown)        /* for 'I' */				      \
+    }
+
+
+#define process_arg(fspec)						      \
+      /* Start real work.  We know about all flags and modifiers and	      \
+	 now process the wanted format specifier.  */			      \
+    LABEL (form_percent):						      \
+      /* Write a literal "%".  */					      \
+      outchar (L_('%'));						      \
+      break;								      \
+									      \
+    LABEL (form_integer):						      \
+      /* Signed decimal integer.  */					      \
+      base = 10;							      \
+									      \
+      if (is_longlong)							      \
+	{								      \
+	  long long int signed_number;					      \
+									      \
+	  if (fspec == NULL)						      \
+	    signed_number = va_arg (ap, long long int);			      \
+	  else								      \
+	    signed_number = args_value[fspec->data_arg].pa_long_long_int;     \
+									      \
+	  is_negative = signed_number < 0;				      \
+	  number.longlong = is_negative ? (- signed_number) : signed_number;  \
+									      \
+	  goto LABEL (longlong_number);					      \
+	}								      \
+      else								      \
+	{								      \
+	  long int signed_number;					      \
+									      \
+	  if (fspec == NULL)						      \
+	    {								      \
+	      if (is_long_num)						      \
+		signed_number = va_arg (ap, long int);			      \
+	      else if (is_char)						      \
+		signed_number = (signed char) va_arg (ap, unsigned int);      \
+	      else if (!is_short)					      \
+		signed_number = va_arg (ap, int);			      \
+	      else							      \
+		signed_number = (short int) va_arg (ap, unsigned int);	      \
+	    }								      \
+	  else								      \
+	    if (is_long_num)						      \
+	      signed_number = args_value[fspec->data_arg].pa_long_int;	      \
+	    else if (is_char)						      \
+	      signed_number = (signed char)				      \
+		args_value[fspec->data_arg].pa_u_int;			      \
+	    else if (!is_short)						      \
+	      signed_number = args_value[fspec->data_arg].pa_int;	      \
+	    else							      \
+	      signed_number = (short int)				      \
+		args_value[fspec->data_arg].pa_u_int;			      \
+									      \
+	  is_negative = signed_number < 0;				      \
+	  number.word = is_negative ? (- signed_number) : signed_number;      \
+									      \
+	  goto LABEL (number);						      \
+	}								      \
+      /* NOTREACHED */							      \
+									      \
+    LABEL (form_unsigned):						      \
+      /* Unsigned decimal integer.  */					      \
+      base = 10;							      \
+      goto LABEL (unsigned_number);					      \
+      /* NOTREACHED */							      \
+									      \
+    LABEL (form_octal):							      \
+      /* Unsigned octal integer.  */					      \
+      base = 8;								      \
+      goto LABEL (unsigned_number);					      \
+      /* NOTREACHED */							      \
+									      \
+    LABEL (form_hexa):							      \
+      /* Unsigned hexadecimal integer.  */				      \
+      base = 16;							      \
+									      \
+    LABEL (unsigned_number):	  /* Unsigned number of base BASE.  */	      \
+									      \
+      /* ISO specifies the `+' and ` ' flags only for signed		      \
+	 conversions.  */						      \
+      is_negative = 0;							      \
+      showsign = 0;							      \
+      space = 0;							      \
+									      \
+      if (is_longlong)							      \
+	{								      \
+	  if (fspec == NULL)						      \
+	    number.longlong = va_arg (ap, unsigned long long int);	      \
+	  else								      \
+	    number.longlong = args_value[fspec->data_arg].pa_u_long_long_int; \
+									      \
+	LABEL (longlong_number):					      \
+	  if (prec < 0)							      \
+	    /* Supply a default precision if none was given.  */	      \
+	    prec = 1;							      \
+	  else								      \
+	    /* We have to take care for the '0' flag.  If a precision	      \
+	       is given it must be ignored.  */				      \
+	    pad = L_(' ');						      \
+									      \
+	  /* If the precision is 0 and the number is 0 nothing has to	      \
+	     be written for the number, except for the 'o' format in	      \
+	     alternate form.  */					      \
+	  if (prec == 0 && number.longlong == 0)			      \
+	    {								      \
+	      string = workend;						      \
+	      if (base == 8 && alt)					      \
+		*--string = L_('0');					      \
+	    }								      \
+	  else								      \
+	    {								      \
+	      /* Put the number in WORK.  */				      \
+	      string = _itoa (number.longlong, workend, base,		      \
+			      spec == L_('X'));				      \
+	      if (group && grouping)					      \
+		string = group_number (work_buffer, string, workend,	      \
+				       grouping, thousands_sep);	      \
+	      if (use_outdigits && base == 10)				      \
+		string = _i18n_number_rewrite (string, workend, workend);     \
+	    }								      \
+	  /* Simplify further test for num != 0.  */			      \
+	  number.word = number.longlong != 0;				      \
+	}								      \
+      else								      \
+	{								      \
+	  if (fspec == NULL)						      \
+	    {								      \
+	      if (is_long_num)						      \
+		number.word = va_arg (ap, unsigned long int);		      \
+	      else if (is_char)						      \
+		number.word = (unsigned char) va_arg (ap, unsigned int);      \
+	      else if (!is_short)					      \
+		number.word = va_arg (ap, unsigned int);		      \
+	      else							      \
+		number.word = (unsigned short int) va_arg (ap, unsigned int); \
+	    }								      \
+	  else								      \
+	    if (is_long_num)						      \
+	      number.word = args_value[fspec->data_arg].pa_u_long_int;	      \
+	    else if (is_char)						      \
+	      number.word = (unsigned char)				      \
+		args_value[fspec->data_arg].pa_u_int;			      \
+	    else if (!is_short)						      \
+	      number.word = args_value[fspec->data_arg].pa_u_int;	      \
+	    else							      \
+	      number.word = (unsigned short int)			      \
+		args_value[fspec->data_arg].pa_u_int;			      \
+									      \
+	LABEL (number):							      \
+	  if (prec < 0)							      \
+	    /* Supply a default precision if none was given.  */	      \
+	    prec = 1;							      \
+	  else								      \
+	    /* We have to take care for the '0' flag.  If a precision	      \
+	       is given it must be ignored.  */				      \
+	    pad = L_(' ');						      \
+									      \
+	  /* If the precision is 0 and the number is 0 nothing has to	      \
+	     be written for the number, except for the 'o' format in	      \
+	     alternate form.  */					      \
+	  if (prec == 0 && number.word == 0)				      \
+	    {								      \
+	      string = workend;						      \
+	      if (base == 8 && alt)					      \
+		*--string = L_('0');					      \
+	    }								      \
+	  else								      \
+	    {								      \
+	      /* Put the number in WORK.  */				      \
+	      string = _itoa_word (number.word, workend, base,		      \
+				   spec == L_('X'));			      \
+	      if (group && grouping)					      \
+		string = group_number (work_buffer, string, workend,	      \
+				       grouping, thousands_sep);	      \
+	      if (use_outdigits && base == 10)				      \
+		string = _i18n_number_rewrite (string, workend, workend);     \
+	    }								      \
+	}								      \
+									      \
+      if (prec <= workend - string && number.word != 0 && alt && base == 8)   \
+	/* Add octal marker.  */					      \
+	*--string = L_('0');						      \
+									      \
+      prec = MAX (0, prec - (workend - string));			      \
+									      \
+      if (!left)							      \
+	{								      \
+	  width -= workend - string + prec;				      \
+									      \
+	  if (number.word != 0 && alt && base == 16)			      \
+	    /* Account for 0X hex marker.  */				      \
+	    width -= 2;							      \
+									      \
+	  if (is_negative || showsign || space)				      \
+	    --width;							      \
+									      \
+	  if (pad == L_(' '))						      \
+	    {								      \
+	      PAD (L_(' '));						      \
+	      width = 0;						      \
+	    }								      \
+									      \
+	  if (is_negative)						      \
+	    outchar (L_('-'));						      \
+	  else if (showsign)						      \
+	    outchar (L_('+'));						      \
+	  else if (space)						      \
+	    outchar (L_(' '));						      \
+									      \
+	  if (number.word != 0 && alt && base == 16)			      \
+	    {								      \
+	      outchar (L_('0'));					      \
+	      outchar (spec);						      \
+	    }								      \
+									      \
+	  width += prec;						      \
+	  PAD (L_('0'));						      \
+									      \
+	  outstring (string, workend - string);				      \
+									      \
+	  break;							      \
+	}								      \
+      else								      \
+	{								      \
+	  if (is_negative)						      \
+	    {								      \
+	      outchar (L_('-'));					      \
+	      --width;							      \
+	    }								      \
+	  else if (showsign)						      \
+	    {								      \
+	      outchar (L_('+'));					      \
+	      --width;							      \
+	    }								      \
+	  else if (space)						      \
+	    {								      \
+	      outchar (L_(' '));					      \
+	      --width;							      \
+	    }								      \
+									      \
+	  if (number.word != 0 && alt && base == 16)			      \
+	    {								      \
+	      outchar (L_('0'));					      \
+	      outchar (spec);						      \
+	      width -= 2;						      \
+	    }								      \
+									      \
+	  width -= workend - string + prec;				      \
+									      \
+	  if (prec > 0)							      \
+	    {								      \
+	      int temp = width;						      \
+	      width = prec;						      \
+	      PAD (L_('0'));						      \
+	      width = temp;						      \
+	    }								      \
+									      \
+	  outstring (string, workend - string);				      \
+									      \
+	  PAD (L_(' '));						      \
+	  break;							      \
+	}								      \
+									      \
+    LABEL (form_float):							      \
+      {									      \
+	/* Floating-point number.  This is handled by printf_fp.c.  */	      \
+	const void *ptr;						      \
+	int function_done;						      \
+									      \
+	if (fspec == NULL)						      \
+	  {								      \
+	    if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0))    \
+	      is_long_double = 0;					      \
+									      \
+	    struct printf_info info = { .prec = prec,			      \
+					.width = width,			      \
+					.spec = spec,			      \
+					.is_long_double = is_long_double,     \
+					.is_short = is_short,		      \
+					.is_long = is_long,		      \
+					.alt = alt,			      \
+					.space = space,			      \
+					.left = left,			      \
+					.showsign = showsign,		      \
+					.group = group,			      \
+					.pad = pad,			      \
+					.extra = 0,			      \
+					.i18n = use_outdigits,		      \
+					.wide = sizeof (CHAR_T) != 1,	      \
+					.is_binary128 = 0};		      \
+									      \
+	    if (is_long_double)						      \
+	      the_arg.pa_long_double = va_arg (ap, long double);	      \
+	    else							      \
+	      the_arg.pa_double = va_arg (ap, double);			      \
+	    ptr = (const void *) &the_arg;				      \
+									      \
+	    function_done = __printf_fp (s, &info, &ptr);		      \
+	  }								      \
+	else								      \
+	  {								      \
+	    ptr = (const void *) &args_value[fspec->data_arg];		      \
+	    if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0))    \
+	      {								      \
+		fspec->data_arg_type = PA_DOUBLE;			      \
+		fspec->info.is_long_double = 0;				      \
+	      }								      \
+	    /* Not supported by *printf functions.  */			      \
+	    fspec->info.is_binary128 = 0;				      \
+									      \
+	    function_done = __printf_fp (s, &fspec->info, &ptr);	      \
+	  }								      \
+									      \
+	if (function_done < 0)						      \
+	  {								      \
+	    /* Error in print handler; up to handler to set errno.  */	      \
+	    done = -1;							      \
+	    goto all_done;						      \
+	  }								      \
+									      \
+	done_add (function_done);					      \
+      }									      \
+      break;								      \
+									      \
+    LABEL (form_floathex):						      \
+      {									      \
+	/* Floating point number printed as hexadecimal number.  */	      \
+	const void *ptr;						      \
+	int function_done;						      \
+									      \
+	if (fspec == NULL)						      \
+	  {								      \
+	    if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0))    \
+	      is_long_double = 0;					      \
+									      \
+	    struct printf_info info = { .prec = prec,			      \
+					.width = width,			      \
+					.spec = spec,			      \
+					.is_long_double = is_long_double,     \
+					.is_short = is_short,		      \
+					.is_long = is_long,		      \
+					.alt = alt,			      \
+					.space = space,			      \
+					.left = left,			      \
+					.showsign = showsign,		      \
+					.group = group,			      \
+					.pad = pad,			      \
+					.extra = 0,			      \
+					.wide = sizeof (CHAR_T) != 1,	      \
+					.is_binary128 = 0};		      \
+									      \
+	    if (is_long_double)						      \
+	      the_arg.pa_long_double = va_arg (ap, long double);	      \
+	    else							      \
+	      the_arg.pa_double = va_arg (ap, double);			      \
+	    ptr = (const void *) &the_arg;				      \
+									      \
+	    function_done = __printf_fphex (s, &info, &ptr);		      \
+	  }								      \
+	else								      \
+	  {								      \
+	    ptr = (const void *) &args_value[fspec->data_arg];		      \
+	    if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0))    \
+	      fspec->info.is_long_double = 0;				      \
+	    /* Not supported by *printf functions.  */			      \
+	    fspec->info.is_binary128 = 0;				      \
+									      \
+	    function_done = __printf_fphex (s, &fspec->info, &ptr);	      \
+	  }								      \
+									      \
+	if (function_done < 0)						      \
+	  {								      \
+	    /* Error in print handler; up to handler to set errno.  */	      \
+	    done = -1;							      \
+	    goto all_done;						      \
+	  }								      \
+									      \
+	done_add (function_done);					      \
+      }									      \
+      break;								      \
+									      \
+    LABEL (form_pointer):						      \
+      /* Generic pointer.  */						      \
+      {									      \
+	const void *ptr;						      \
+	if (fspec == NULL)						      \
+	  ptr = va_arg (ap, void *);					      \
+	else								      \
+	  ptr = args_value[fspec->data_arg].pa_pointer;			      \
+	if (ptr != NULL)						      \
+	  {								      \
+	    /* If the pointer is not NULL, write it as a %#x spec.  */	      \
+	    base = 16;							      \
+	    number.word = (unsigned long int) ptr;			      \
+	    is_negative = 0;						      \
+	    alt = 1;							      \
+	    group = 0;							      \
+	    spec = L_('x');						      \
+	    goto LABEL (number);					      \
+	  }								      \
+	else								      \
+	  {								      \
+	    /* Write "(nil)" for a nil pointer.  */			      \
+	    string = (CHAR_T *) L_("(nil)");				      \
+	    /* Make sure the full string "(nil)" is printed.  */	      \
+	    if (prec < 5)						      \
+	      prec = 5;							      \
+	    /* This is a wide string iff compiling wprintf.  */		      \
+	    is_long = sizeof (CHAR_T) > 1;				      \
+	    goto LABEL (print_string);					      \
+	  }								      \
+      }									      \
+      /* NOTREACHED */							      \
+									      \
+    LABEL (form_number):						      \
+      if ((mode_flags & PRINTF_FORTIFY) != 0)				      \
+	{								      \
+	  if (! readonly_format)					      \
+	    {								      \
+	      extern int __readonly_area (const void *, size_t)		      \
+		attribute_hidden;					      \
+	      readonly_format						      \
+		= __readonly_area (format, ((STR_LEN (format) + 1)	      \
+					    * sizeof (CHAR_T)));	      \
+	    }								      \
+	  if (readonly_format < 0)					      \
+	    __libc_fatal ("*** %n in writable segment detected ***\n");	      \
+	}								      \
+      /* Answer the count of characters written.  */			      \
+      if (fspec == NULL)						      \
+	{								      \
+	  if (is_longlong)						      \
+	    *(long long int *) va_arg (ap, void *) = done;		      \
+	  else if (is_long_num)						      \
+	    *(long int *) va_arg (ap, void *) = done;			      \
+	  else if (is_char)						      \
+	    *(char *) va_arg (ap, void *) = done;			      \
+	  else if (!is_short)						      \
+	    *(int *) va_arg (ap, void *) = done;			      \
+	  else								      \
+	    *(short int *) va_arg (ap, void *) = done;			      \
+	}								      \
+      else								      \
+	if (is_longlong)						      \
+	  *(long long int *) args_value[fspec->data_arg].pa_pointer = done;   \
+	else if (is_long_num)						      \
+	  *(long int *) args_value[fspec->data_arg].pa_pointer = done;	      \
+	else if (is_char)						      \
+	  *(char *) args_value[fspec->data_arg].pa_pointer = done;	      \
+	else if (!is_short)						      \
+	  *(int *) args_value[fspec->data_arg].pa_pointer = done;	      \
+	else								      \
+	  *(short int *) args_value[fspec->data_arg].pa_pointer = done;	      \
+      break;								      \
+									      \
+    LABEL (form_strerror):						      \
+      /* Print description of error ERRNO.  */				      \
+      string =								      \
+	(CHAR_T *) __strerror_r (save_errno, (char *) work_buffer,	      \
+				 WORK_BUFFER_SIZE * sizeof (CHAR_T));	      \
+      is_long = 0;		/* This is no wide-char string.  */	      \
+      goto LABEL (print_string)
+
+#ifdef COMPILE_WPRINTF
+# define process_string_arg(fspec) \
+    LABEL (form_character):						      \
+      /* Character.  */							      \
+      if (is_long)							      \
+	goto LABEL (form_wcharacter);					      \
+      --width;	/* Account for the character itself.  */		      \
+      if (!left)							      \
+	PAD (L' ');							      \
+      if (fspec == NULL)						      \
+	outchar (__btowc ((unsigned char) va_arg (ap, int))); /* Promoted. */ \
+      else								      \
+	outchar (__btowc ((unsigned char)				      \
+			  args_value[fspec->data_arg].pa_int));		      \
+      if (left)								      \
+	PAD (L' ');							      \
+      break;								      \
+									      \
+    LABEL (form_wcharacter):						      \
+      {									      \
+	/* Wide character.  */						      \
+	--width;							      \
+	if (!left)							      \
+	  PAD (L' ');							      \
+	if (fspec == NULL)						      \
+	  outchar (va_arg (ap, wchar_t));				      \
+	else								      \
+	  outchar (args_value[fspec->data_arg].pa_wchar);		      \
+	if (left)							      \
+	  PAD (L' ');							      \
+      }									      \
+      break;								      \
+									      \
+    LABEL (form_string):						      \
+      {									      \
+	size_t len;							      \
+	int string_malloced;						      \
+									      \
+	/* The string argument could in fact be `char *' or `wchar_t *'.      \
+	   But this should not make a difference here.  */		      \
+	if (fspec == NULL)						      \
+	  string = (CHAR_T *) va_arg (ap, const wchar_t *);		      \
+	else								      \
+	  string = (CHAR_T *) args_value[fspec->data_arg].pa_wstring;	      \
+									      \
+	/* Entry point for printing other strings.  */			      \
+      LABEL (print_string):						      \
+									      \
+	string_malloced = 0;						      \
+	if (string == NULL)						      \
+	  {								      \
+	    /* Write "(null)" if there's space.  */			      \
+	    if (prec == -1 || prec >= (int) array_length (null) - 1)          \
+	      {								      \
+		string = (CHAR_T *) null;				      \
+		len = array_length (null) - 1;				      \
+	      }								      \
+	    else							      \
+	      {								      \
+		string = (CHAR_T *) L"";				      \
+		len = 0;						      \
+	      }								      \
+	  }								      \
+	else if (!is_long && spec != L_('S'))				      \
+	  {								      \
+	    /* This is complicated.  We have to transform the multibyte	      \
+	       string into a wide character string.  */			      \
+	    const char *mbs = (const char *) string;			      \
+	    mbstate_t mbstate;						      \
+									      \
+	    len = prec != -1 ? __strnlen (mbs, (size_t) prec) : strlen (mbs); \
+									      \
+	    /* Allocate dynamically an array which definitely is long	      \
+	       enough for the wide character version.  Each byte in the	      \
+	       multi-byte string can produce at most one wide character.  */  \
+	    if (__glibc_unlikely (len > SIZE_MAX / sizeof (wchar_t)))	      \
+	      {								      \
+		__set_errno (EOVERFLOW);				      \
+		done = -1;						      \
+		goto all_done;						      \
+	      }								      \
+	    else if (__libc_use_alloca (len * sizeof (wchar_t)))	      \
+	      string = (CHAR_T *) alloca (len * sizeof (wchar_t));	      \
+	    else if ((string = (CHAR_T *) malloc (len * sizeof (wchar_t)))    \
+		     == NULL)						      \
+	      {								      \
+		done = -1;						      \
+		goto all_done;						      \
+	      }								      \
+	    else							      \
+	      string_malloced = 1;					      \
+									      \
+	    memset (&mbstate, '\0', sizeof (mbstate_t));		      \
+	    len = __mbsrtowcs (string, &mbs, len, &mbstate);		      \
+	    if (len == (size_t) -1)					      \
+	      {								      \
+		/* Illegal multibyte character.  */			      \
+		done = -1;						      \
+		goto all_done;						      \
+	      }								      \
+	  }								      \
+	else								      \
+	  {								      \
+	    if (prec != -1)						      \
+	      /* Search for the end of the string, but don't search past      \
+		 the length specified by the precision.  */		      \
+	      len = __wcsnlen (string, prec);				      \
+	    else							      \
+	      len = __wcslen (string);					      \
+	  }								      \
+									      \
+	if ((width -= len) < 0)						      \
+	  {								      \
+	    outstring (string, len);					      \
+	    break;							      \
+	  }								      \
+									      \
+	if (!left)							      \
+	  PAD (L' ');							      \
+	outstring (string, len);					      \
+	if (left)							      \
+	  PAD (L' ');							      \
+	if (__glibc_unlikely (string_malloced))				      \
+	  free (string);						      \
+      }									      \
+      break;
+#else
+# define process_string_arg(fspec) \
+    LABEL (form_character):						      \
+      /* Character.  */							      \
+      if (is_long)							      \
+	goto LABEL (form_wcharacter);					      \
+      --width;	/* Account for the character itself.  */		      \
+      if (!left)							      \
+	PAD (' ');							      \
+      if (fspec == NULL)						      \
+	outchar ((unsigned char) va_arg (ap, int)); /* Promoted.  */	      \
+      else								      \
+	outchar ((unsigned char) args_value[fspec->data_arg].pa_int);	      \
+      if (left)								      \
+	PAD (' ');							      \
+      break;								      \
+									      \
+    LABEL (form_wcharacter):						      \
+      {									      \
+	/* Wide character.  */						      \
+	char buf[MB_LEN_MAX];						      \
+	mbstate_t mbstate;						      \
+	size_t len;							      \
+									      \
+	memset (&mbstate, '\0', sizeof (mbstate_t));			      \
+	len = __wcrtomb (buf, (fspec == NULL ? va_arg (ap, wchar_t)	      \
+			       : args_value[fspec->data_arg].pa_wchar),	      \
+			 &mbstate);					      \
+	if (len == (size_t) -1)						      \
+	  {								      \
+	    /* Something went wrong during the conversion.  Bail out.  */     \
+	    done = -1;							      \
+	    goto all_done;						      \
+	  }								      \
+	width -= len;							      \
+	if (!left)							      \
+	  PAD (' ');							      \
+	outstring (buf, len);						      \
+	if (left)							      \
+	  PAD (' ');							      \
+      }									      \
+      break;								      \
+									      \
+    LABEL (form_string):						      \
+      {									      \
+	size_t len;							      \
+	int string_malloced;						      \
+									      \
+	/* The string argument could in fact be `char *' or `wchar_t *'.      \
+	   But this should not make a difference here.  */		      \
+	if (fspec == NULL)						      \
+	  string = (char *) va_arg (ap, const char *);			      \
+	else								      \
+	  string = (char *) args_value[fspec->data_arg].pa_string;	      \
+									      \
+	/* Entry point for printing other strings.  */			      \
+      LABEL (print_string):						      \
+									      \
+	string_malloced = 0;						      \
+	if (string == NULL)						      \
+	  {								      \
+	    /* Write "(null)" if there's space.  */			      \
+	    if (prec == -1 || prec >= (int) sizeof (null) - 1)		      \
+	      {								      \
+		string = (char *) null;					      \
+		len = sizeof (null) - 1;				      \
+	      }								      \
+	    else							      \
+	      {								      \
+		string = (char *) "";					      \
+		len = 0;						      \
+	      }								      \
+	  }								      \
+	else if (!is_long && spec != L_('S'))				      \
+	  {								      \
+	    if (prec != -1)						      \
+	      /* Search for the end of the string, but don't search past      \
+		 the length (in bytes) specified by the precision.  */	      \
+	      len = __strnlen (string, prec);				      \
+	    else							      \
+	      len = strlen (string);					      \
+	  }								      \
+	else								      \
+	  {								      \
+	    const wchar_t *s2 = (const wchar_t *) string;		      \
+	    mbstate_t mbstate;						      \
+									      \
+	    memset (&mbstate, '\0', sizeof (mbstate_t));		      \
+									      \
+	    if (prec >= 0)						      \
+	      {								      \
+		/* The string `s2' might not be NUL terminated.  */	      \
+		if (__libc_use_alloca (prec))				      \
+		  string = (char *) alloca (prec);			      \
+		else if ((string = (char *) malloc (prec)) == NULL)	      \
+		  {							      \
+		    done = -1;						      \
+		    goto all_done;					      \
+		  }							      \
+		else							      \
+		  string_malloced = 1;					      \
+		len = __wcsrtombs (string, &s2, prec, &mbstate);	      \
+	      }								      \
+	    else							      \
+	      {								      \
+		len = __wcsrtombs (NULL, &s2, 0, &mbstate);		      \
+		if (len != (size_t) -1)					      \
+		  {							      \
+		    assert (__mbsinit (&mbstate));			      \
+		    s2 = (const wchar_t *) string;			      \
+		    if (__libc_use_alloca (len + 1))			      \
+		      string = (char *) alloca (len + 1);		      \
+		    else if ((string = (char *) malloc (len + 1)) == NULL)    \
+		      {							      \
+			done = -1;					      \
+			goto all_done;					      \
+		      }							      \
+		    else						      \
+		      string_malloced = 1;				      \
+		    (void) __wcsrtombs (string, &s2, len + 1, &mbstate);      \
+		  }							      \
+	      }								      \
+									      \
+	    if (len == (size_t) -1)					      \
+	      {								      \
+		/* Illegal wide-character string.  */			      \
+		done = -1;						      \
+		goto all_done;						      \
+	      }								      \
+	  }								      \
+									      \
+	if ((width -= len) < 0)						      \
+	  {								      \
+	    outstring (string, len);					      \
+	    break;							      \
+	  }								      \
+									      \
+	if (!left)							      \
+	  PAD (' ');							      \
+	outstring (string, len);					      \
+	if (left)							      \
+	  PAD (' ');							      \
+	if (__glibc_unlikely (string_malloced))			              \
+	  free (string);						      \
+      }									      \
+      break;
+#endif
+
+/* Helper function to provide temporary buffering for unbuffered streams.  */
+static int buffered_vfprintf (FILE *stream, const CHAR_T *fmt, va_list,
+			      unsigned int)
+     __THROW __attribute__ ((noinline));
+
+/* Handle positional format specifiers.  */
+static int printf_positional (FILE *s,
+			      const CHAR_T *format, int readonly_format,
+			      va_list ap, va_list *ap_savep, int done,
+			      int nspecs_done, const UCHAR_T *lead_str_end,
+			      CHAR_T *work_buffer, int save_errno,
+			      const char *grouping,
+			      THOUSANDS_SEP_T thousands_sep,
+			      unsigned int mode_flags);
+
+/* Handle unknown format specifier.  */
+static int printf_unknown (FILE *, const struct printf_info *,
+			   const void *const *) __THROW;
+
+/* Group digits of number string.  */
+static CHAR_T *group_number (CHAR_T *, CHAR_T *, CHAR_T *, const char *,
+			     THOUSANDS_SEP_T);
+
+/* The function itself.  */
+int
+vfprintf (FILE *s, const CHAR_T *format, va_list ap, unsigned int mode_flags)
+{
+  /* The character used as thousands separator.  */
+  THOUSANDS_SEP_T thousands_sep = 0;
+
+  /* The string describing the size of groups of digits.  */
+  const char *grouping;
+
+  /* Place to accumulate the result.  */
+  int done;
+
+  /* Current character in format string.  */
+  const UCHAR_T *f;
+
+  /* End of leading constant string.  */
+  const UCHAR_T *lead_str_end;
+
+  /* Points to next format specifier.  */
+  const UCHAR_T *end_of_spec;
+
+  /* Buffer intermediate results.  */
+  CHAR_T work_buffer[WORK_BUFFER_SIZE];
+  CHAR_T *workstart = NULL;
+  CHAR_T *workend;
+
+  /* We have to save the original argument pointer.  */
+  va_list ap_save;
+
+  /* Count number of specifiers we already processed.  */
+  int nspecs_done;
+
+  /* For the %m format we may need the current `errno' value.  */
+  int save_errno = errno;
+
+  /* 1 if format is in read-only memory, -1 if it is in writable memory,
+     0 if unknown.  */
+  int readonly_format = 0;
+
+  /* Temporarily honor environmental settings.  */
+  if (__ldbl_is_dbl)
+    mode_flags |= PRINTF_LDBL_IS_DBL;
+  if (s->_flags2 & _IO_FLAGS2_FORTIFY)
+    mode_flags |= PRINTF_FORTIFY;
+
+  /* Orient the stream.  */
+#ifdef ORIENT
+  ORIENT;
+#endif
+
+  /* Sanity check of arguments.  */
+  ARGCHECK (s, format);
+
+#ifdef ORIENT
+  /* Check for correct orientation.  */
+  if (_IO_vtable_offset (s) == 0 &&
+      _IO_fwide (s, sizeof (CHAR_T) == 1 ? -1 : 1)
+      != (sizeof (CHAR_T) == 1 ? -1 : 1))
+    /* The stream is already oriented otherwise.  */
+    return EOF;
+#endif
+
+  if (UNBUFFERED_P (s))
+    /* Use a helper function which will allocate a local temporary buffer
+       for the stream and then call us again.  */
+    return buffered_vfprintf (s, format, ap, mode_flags);
+
+  /* Initialize local variables.  */
+  done = 0;
+  grouping = (const char *) -1;
+#ifdef __va_copy
+  /* This macro will be available soon in gcc's <stdarg.h>.  We need it
+     since on some systems `va_list' is not an integral type.  */
+  __va_copy (ap_save, ap);
+#else
+  ap_save = ap;
+#endif
+  nspecs_done = 0;
+
+#ifdef COMPILE_WPRINTF
+  /* Find the first format specifier.  */
+  f = lead_str_end = __find_specwc ((const UCHAR_T *) format);
+#else
+  /* Find the first format specifier.  */
+  f = lead_str_end = __find_specmb ((const UCHAR_T *) format);
+#endif
+
+  /* Lock stream.  */
+  _IO_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile, s);
+  _IO_flockfile (s);
+
+  /* Write the literal text before the first format.  */
+  outstring ((const UCHAR_T *) format,
+	     lead_str_end - (const UCHAR_T *) format);
+
+  /* If we only have to print a simple string, return now.  */
+  if (*f == L_('\0'))
+    goto all_done;
+
+  /* Use the slow path in case any printf handler is registered.  */
+  if (__glibc_unlikely (__printf_function_table != NULL
+			|| __printf_modifier_table != NULL
+			|| __printf_va_arg_table != NULL))
+    goto do_positional;
+
+  /* Process whole format string.  */
+  do
+    {
+      STEP0_3_TABLE;
+      STEP4_TABLE;
+
+      union printf_arg *args_value;	/* This is not used here but ... */
+      int is_negative;	/* Flag for negative number.  */
+      union
+      {
+	unsigned long long int longlong;
+	unsigned long int word;
+      } number;
+      int base;
+      union printf_arg the_arg;
+      CHAR_T *string;	/* Pointer to argument string.  */
+      int alt = 0;	/* Alternate format.  */
+      int space = 0;	/* Use space prefix if no sign is needed.  */
+      int left = 0;	/* Left-justify output.  */
+      int showsign = 0;	/* Always begin with plus or minus sign.  */
+      int group = 0;	/* Print numbers according grouping rules.  */
+      int is_long_double = 0; /* Argument is long double/ long long int.  */
+      int is_short = 0;	/* Argument is short int.  */
+      int is_long = 0;	/* Argument is long int.  */
+      int is_char = 0;	/* Argument is promoted (unsigned) char.  */
+      int width = 0;	/* Width of output; 0 means none specified.  */
+      int prec = -1;	/* Precision of output; -1 means none specified.  */
+      /* This flag is set by the 'I' modifier and selects the use of the
+	 `outdigits' as determined by the current locale.  */
+      int use_outdigits = 0;
+      UCHAR_T pad = L_(' ');/* Padding character.  */
+      CHAR_T spec;
+
+      workstart = NULL;
+      workend = work_buffer + WORK_BUFFER_SIZE;
+
+      /* Get current character in format string.  */
+      JUMP (*++f, step0_jumps);
+
+      /* ' ' flag.  */
+    LABEL (flag_space):
+      space = 1;
+      JUMP (*++f, step0_jumps);
+
+      /* '+' flag.  */
+    LABEL (flag_plus):
+      showsign = 1;
+      JUMP (*++f, step0_jumps);
+
+      /* The '-' flag.  */
+    LABEL (flag_minus):
+      left = 1;
+      pad = L_(' ');
+      JUMP (*++f, step0_jumps);
+
+      /* The '#' flag.  */
+    LABEL (flag_hash):
+      alt = 1;
+      JUMP (*++f, step0_jumps);
+
+      /* The '0' flag.  */
+    LABEL (flag_zero):
+      if (!left)
+	pad = L_('0');
+      JUMP (*++f, step0_jumps);
+
+      /* The '\'' flag.  */
+    LABEL (flag_quote):
+      group = 1;
+
+      if (grouping == (const char *) -1)
+	{
+#ifdef COMPILE_WPRINTF
+	  thousands_sep = _NL_CURRENT_WORD (LC_NUMERIC,
+					    _NL_NUMERIC_THOUSANDS_SEP_WC);
+#else
+	  thousands_sep = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
+#endif
+
+	  grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
+	  if (*grouping == '\0' || *grouping == CHAR_MAX
+#ifdef COMPILE_WPRINTF
+	      || thousands_sep == L'\0'
+#else
+	      || *thousands_sep == '\0'
+#endif
+	      )
+	    grouping = NULL;
+	}
+      JUMP (*++f, step0_jumps);
+
+    LABEL (flag_i18n):
+      use_outdigits = 1;
+      JUMP (*++f, step0_jumps);
+
+      /* Get width from argument.  */
+    LABEL (width_asterics):
+      {
+	const UCHAR_T *tmp;	/* Temporary value.  */
+
+	tmp = ++f;
+	if (ISDIGIT (*tmp))
+	  {
+	    int pos = read_int (&tmp);
+
+	    if (pos == -1)
+	      {
+		__set_errno (EOVERFLOW);
+		done = -1;
+		goto all_done;
+	      }
+
+	    if (pos && *tmp == L_('$'))
+	      /* The width comes from a positional parameter.  */
+	      goto do_positional;
+	  }
+	width = va_arg (ap, int);
+
+	/* Negative width means left justified.  */
+	if (width < 0)
+	  {
+	    width = -width;
+	    pad = L_(' ');
+	    left = 1;
+	  }
+
+	if (__glibc_unlikely (width >= INT_MAX / sizeof (CHAR_T) - EXTSIZ))
+	  {
+	    __set_errno (EOVERFLOW);
+	    done = -1;
+	    goto all_done;
+	  }
+
+	if (width >= WORK_BUFFER_SIZE - EXTSIZ)
+	  {
+	    /* We have to use a special buffer.  */
+	    size_t needed = ((size_t) width + EXTSIZ) * sizeof (CHAR_T);
+	    if (__libc_use_alloca (needed))
+	      workend = (CHAR_T *) alloca (needed) + width + EXTSIZ;
+	    else
+	      {
+		workstart = (CHAR_T *) malloc (needed);
+		if (workstart == NULL)
+		  {
+		    done = -1;
+		    goto all_done;
+		  }
+		workend = workstart + width + EXTSIZ;
+	      }
+	  }
+      }
+      JUMP (*f, step1_jumps);
+
+      /* Given width in format string.  */
+    LABEL (width):
+      width = read_int (&f);
+
+      if (__glibc_unlikely (width == -1
+			    || width >= INT_MAX / sizeof (CHAR_T) - EXTSIZ))
+	{
+	  __set_errno (EOVERFLOW);
+	  done = -1;
+	  goto all_done;
+	}
+
+      if (width >= WORK_BUFFER_SIZE - EXTSIZ)
+	{
+	  /* We have to use a special buffer.  */
+	  size_t needed = ((size_t) width + EXTSIZ) * sizeof (CHAR_T);
+	  if (__libc_use_alloca (needed))
+	    workend = (CHAR_T *) alloca (needed) + width + EXTSIZ;
+	  else
+	    {
+	      workstart = (CHAR_T *) malloc (needed);
+	      if (workstart == NULL)
+		{
+		  done = -1;
+		  goto all_done;
+		}
+	      workend = workstart + width + EXTSIZ;
+	    }
+	}
+      if (*f == L_('$'))
+	/* Oh, oh.  The argument comes from a positional parameter.  */
+	goto do_positional;
+      JUMP (*f, step1_jumps);
+
+    LABEL (precision):
+      ++f;
+      if (*f == L_('*'))
+	{
+	  const UCHAR_T *tmp;	/* Temporary value.  */
+
+	  tmp = ++f;
+	  if (ISDIGIT (*tmp))
+	    {
+	      int pos = read_int (&tmp);
+
+	      if (pos == -1)
+		{
+		  __set_errno (EOVERFLOW);
+		  done = -1;
+		  goto all_done;
+		}
+
+	      if (pos && *tmp == L_('$'))
+		/* The precision comes from a positional parameter.  */
+		goto do_positional;
+	    }
+	  prec = va_arg (ap, int);
+
+	  /* If the precision is negative the precision is omitted.  */
+	  if (prec < 0)
+	    prec = -1;
+	}
+      else if (ISDIGIT (*f))
+	{
+	  prec = read_int (&f);
+
+	  /* The precision was specified in this case as an extremely
+	     large positive value.  */
+	  if (prec == -1)
+	    {
+	      __set_errno (EOVERFLOW);
+	      done = -1;
+	      goto all_done;
+	    }
+	}
+      else
+	prec = 0;
+      if (prec > width && prec > WORK_BUFFER_SIZE - EXTSIZ)
+	{
+	  /* Deallocate any previously allocated buffer because it is
+	     too small.  */
+	  if (__glibc_unlikely (workstart != NULL))
+	    free (workstart);
+	  workstart = NULL;
+	  if (__glibc_unlikely (prec >= INT_MAX / sizeof (CHAR_T) - EXTSIZ))
+	    {
+	      __set_errno (EOVERFLOW);
+	      done = -1;
+	      goto all_done;
+	    }
+	  size_t needed = ((size_t) prec + EXTSIZ) * sizeof (CHAR_T);
+
+	  if (__libc_use_alloca (needed))
+	    workend = (CHAR_T *) alloca (needed) + prec + EXTSIZ;
+	  else
+	    {
+	      workstart = (CHAR_T *) malloc (needed);
+	      if (workstart == NULL)
+		{
+		  done = -1;
+		  goto all_done;
+		}
+	      workend = workstart + prec + EXTSIZ;
+	    }
+	}
+      JUMP (*f, step2_jumps);
+
+      /* Process 'h' modifier.  There might another 'h' following.  */
+    LABEL (mod_half):
+      is_short = 1;
+      JUMP (*++f, step3a_jumps);
+
+      /* Process 'hh' modifier.  */
+    LABEL (mod_halfhalf):
+      is_short = 0;
+      is_char = 1;
+      JUMP (*++f, step4_jumps);
+
+      /* Process 'l' modifier.  There might another 'l' following.  */
+    LABEL (mod_long):
+      is_long = 1;
+      JUMP (*++f, step3b_jumps);
+
+      /* Process 'L', 'q', or 'll' modifier.  No other modifier is
+	 allowed to follow.  */
+    LABEL (mod_longlong):
+      is_long_double = 1;
+      is_long = 1;
+      JUMP (*++f, step4_jumps);
+
+    LABEL (mod_size_t):
+      is_long_double = sizeof (size_t) > sizeof (unsigned long int);
+      is_long = sizeof (size_t) > sizeof (unsigned int);
+      JUMP (*++f, step4_jumps);
+
+    LABEL (mod_ptrdiff_t):
+      is_long_double = sizeof (ptrdiff_t) > sizeof (unsigned long int);
+      is_long = sizeof (ptrdiff_t) > sizeof (unsigned int);
+      JUMP (*++f, step4_jumps);
+
+    LABEL (mod_intmax_t):
+      is_long_double = sizeof (intmax_t) > sizeof (unsigned long int);
+      is_long = sizeof (intmax_t) > sizeof (unsigned int);
+      JUMP (*++f, step4_jumps);
+
+      /* Process current format.  */
+      while (1)
+	{
+	  process_arg (((struct printf_spec *) NULL));
+	  process_string_arg (((struct printf_spec *) NULL));
+
+	LABEL (form_unknown):
+	  if (spec == L_('\0'))
+	    {
+	      /* The format string ended before the specifier is complete.  */
+	      __set_errno (EINVAL);
+	      done = -1;
+	      goto all_done;
+	    }
+
+	  /* If we are in the fast loop force entering the complicated
+	     one.  */
+	  goto do_positional;
+	}
+
+      /* The format is correctly handled.  */
+      ++nspecs_done;
+
+      if (__glibc_unlikely (workstart != NULL))
+	free (workstart);
+      workstart = NULL;
+
+      /* Look for next format specifier.  */
+#ifdef COMPILE_WPRINTF
+      f = __find_specwc ((end_of_spec = ++f));
+#else
+      f = __find_specmb ((end_of_spec = ++f));
+#endif
+
+      /* Write the following constant string.  */
+      outstring (end_of_spec, f - end_of_spec);
+    }
+  while (*f != L_('\0'));
+
+  /* Unlock stream and return.  */
+  goto all_done;
+
+  /* Hand off processing for positional parameters.  */
+do_positional:
+  if (__glibc_unlikely (workstart != NULL))
+    {
+      free (workstart);
+      workstart = NULL;
+    }
+  done = printf_positional (s, format, readonly_format, ap, &ap_save,
+			    done, nspecs_done, lead_str_end, work_buffer,
+			    save_errno, grouping, thousands_sep, mode_flags);
+
+ all_done:
+  if (__glibc_unlikely (workstart != NULL))
+    free (workstart);
+  /* Unlock the stream.  */
+  _IO_funlockfile (s);
+  _IO_cleanup_region_end (0);
+
+  return done;
+}
+
+static int
+printf_positional (FILE *s, const CHAR_T *format, int readonly_format,
+		   va_list ap, va_list *ap_savep, int done, int nspecs_done,
+		   const UCHAR_T *lead_str_end,
+		   CHAR_T *work_buffer, int save_errno,
+		   const char *grouping, THOUSANDS_SEP_T thousands_sep,
+		   unsigned int mode_flags)
+{
+  /* For positional argument handling.  */
+  struct scratch_buffer specsbuf;
+  scratch_buffer_init (&specsbuf);
+  struct printf_spec *specs = specsbuf.data;
+  size_t specs_limit = specsbuf.length / sizeof (specs[0]);
+
+  /* Used as a backing store for args_value, args_size, args_type
+     below.  */
+  struct scratch_buffer argsbuf;
+  scratch_buffer_init (&argsbuf);
+
+  /* Array with information about the needed arguments.  This has to
+     be dynamically extensible.  */
+  size_t nspecs = 0;
+
+  /* The number of arguments the format string requests.  This will
+     determine the size of the array needed to store the argument
+     attributes.  */
+  size_t nargs = 0;
+
+  /* Positional parameters refer to arguments directly.  This could
+     also determine the maximum number of arguments.  Track the
+     maximum number.  */
+  size_t max_ref_arg = 0;
+
+  /* Just a counter.  */
+  size_t cnt;
+
+  CHAR_T *workstart = NULL;
+
+  if (grouping == (const char *) -1)
+    {
+#ifdef COMPILE_WPRINTF
+      thousands_sep = _NL_CURRENT_WORD (LC_NUMERIC,
+					_NL_NUMERIC_THOUSANDS_SEP_WC);
+#else
+      thousands_sep = _NL_CURRENT (LC_NUMERIC, THOUSANDS_SEP);
+#endif
+
+      grouping = _NL_CURRENT (LC_NUMERIC, GROUPING);
+      if (*grouping == '\0' || *grouping == CHAR_MAX)
+	grouping = NULL;
+    }
+
+  for (const UCHAR_T *f = lead_str_end; *f != L_('\0');
+       f = specs[nspecs++].next_fmt)
+    {
+      if (nspecs == specs_limit)
+	{
+	  if (!scratch_buffer_grow_preserve (&specsbuf))
+	    {
+	      done = -1;
+	      goto all_done;
+	    }
+	  specs = specsbuf.data;
+	  specs_limit = specsbuf.length / sizeof (specs[0]);
+	}
+
+      /* Parse the format specifier.  */
+#ifdef COMPILE_WPRINTF
+      nargs += __parse_one_specwc (f, nargs, &specs[nspecs], &max_ref_arg);
+#else
+      nargs += __parse_one_specmb (f, nargs, &specs[nspecs], &max_ref_arg);
+#endif
+    }
+
+  /* Determine the number of arguments the format string consumes.  */
+  nargs = MAX (nargs, max_ref_arg);
+
+  union printf_arg *args_value;
+  int *args_size;
+  int *args_type;
+  {
+    /* Calculate total size needed to represent a single argument
+       across all three argument-related arrays.  */
+    size_t bytes_per_arg
+      = sizeof (*args_value) + sizeof (*args_size) + sizeof (*args_type);
+    if (!scratch_buffer_set_array_size (&argsbuf, nargs, bytes_per_arg))
+      {
+	done = -1;
+	goto all_done;
+      }
+    args_value = argsbuf.data;
+    /* Set up the remaining two arrays to each point past the end of
+       the prior array, since space for all three has been allocated
+       now.  */
+    args_size = &args_value[nargs].pa_int;
+    args_type = &args_size[nargs];
+    memset (args_type, (mode_flags & PRINTF_FORTIFY) != 0 ? '\xff' : '\0',
+	    nargs * sizeof (*args_type));
+  }
+
+  /* XXX Could do sanity check here: If any element in ARGS_TYPE is
+     still zero after this loop, format is invalid.  For now we
+     simply use 0 as the value.  */
+
+  /* Fill in the types of all the arguments.  */
+  for (cnt = 0; cnt < nspecs; ++cnt)
+    {
+      /* If the width is determined by an argument this is an int.  */
+      if (specs[cnt].width_arg != -1)
+	args_type[specs[cnt].width_arg] = PA_INT;
+
+      /* If the precision is determined by an argument this is an int.  */
+      if (specs[cnt].prec_arg != -1)
+	args_type[specs[cnt].prec_arg] = PA_INT;
+
+      switch (specs[cnt].ndata_args)
+	{
+	case 0:		/* No arguments.  */
+	  break;
+	case 1:		/* One argument; we already have the
+			   type and size.  */
+	  args_type[specs[cnt].data_arg] = specs[cnt].data_arg_type;
+	  args_size[specs[cnt].data_arg] = specs[cnt].size;
+	  break;
+	default:
+	  /* We have more than one argument for this format spec.
+	     We must call the arginfo function again to determine
+	     all the types.  */
+	  (void) (*__printf_arginfo_table[specs[cnt].info.spec])
+	    (&specs[cnt].info,
+	     specs[cnt].ndata_args, &args_type[specs[cnt].data_arg],
+	     &args_size[specs[cnt].data_arg]);
+	  break;
+	}
+    }
+
+  /* Now we know all the types and the order.  Fill in the argument
+     values.  */
+  for (cnt = 0; cnt < nargs; ++cnt)
+    switch (args_type[cnt])
+      {
+#define T(tag, mem, type)				\
+	case tag:					\
+	  args_value[cnt].mem = va_arg (*ap_savep, type); \
+	  break
+
+	T (PA_WCHAR, pa_wchar, wint_t);
+      case PA_CHAR:				/* Promoted.  */
+      case PA_INT|PA_FLAG_SHORT:		/* Promoted.  */
+#if LONG_MAX == INT_MAX
+      case PA_INT|PA_FLAG_LONG:
+#endif
+	T (PA_INT, pa_int, int);
+#if LONG_MAX == LONG_LONG_MAX
+      case PA_INT|PA_FLAG_LONG:
+#endif
+	T (PA_INT|PA_FLAG_LONG_LONG, pa_long_long_int, long long int);
+#if LONG_MAX != INT_MAX && LONG_MAX != LONG_LONG_MAX
+# error "he?"
+#endif
+      case PA_FLOAT:				/* Promoted.  */
+	T (PA_DOUBLE, pa_double, double);
+      case PA_DOUBLE|PA_FLAG_LONG_DOUBLE:
+	if (__glibc_unlikely ((mode_flags & PRINTF_LDBL_IS_DBL) != 0))
+	  {
+	    args_value[cnt].pa_double = va_arg (*ap_savep, double);
+	    args_type[cnt] &= ~PA_FLAG_LONG_DOUBLE;
+	  }
+	else
+	  args_value[cnt].pa_long_double = va_arg (*ap_savep, long double);
+	break;
+      case PA_STRING:				/* All pointers are the same */
+      case PA_WSTRING:			/* All pointers are the same */
+	T (PA_POINTER, pa_pointer, void *);
+#undef T
+      default:
+	if ((args_type[cnt] & PA_FLAG_PTR) != 0)
+	  args_value[cnt].pa_pointer = va_arg (*ap_savep, void *);
+	else if (__glibc_unlikely (__printf_va_arg_table != NULL)
+		 && __printf_va_arg_table[args_type[cnt] - PA_LAST] != NULL)
+	  {
+	    args_value[cnt].pa_user = alloca (args_size[cnt]);
+	    (*__printf_va_arg_table[args_type[cnt] - PA_LAST])
+	      (args_value[cnt].pa_user, ap_savep);
+	  }
+	else
+	  args_value[cnt].pa_long_double = 0.0;
+	break;
+      case -1:
+	/* Error case.  Not all parameters appear in N$ format
+	   strings.  We have no way to determine their type.  */
+	assert ((mode_flags & PRINTF_FORTIFY) != 0);
+	__libc_fatal ("*** invalid %N$ use detected ***\n");
+      }
+
+  /* Now walk through all format specifiers and process them.  */
+  for (; (size_t) nspecs_done < nspecs; ++nspecs_done)
+    {
+      STEP4_TABLE;
+
+      int is_negative;
+      union
+      {
+	unsigned long long int longlong;
+	unsigned long int word;
+      } number;
+      int base;
+      union printf_arg the_arg;
+      CHAR_T *string;		/* Pointer to argument string.  */
+
+      /* Fill variables from values in struct.  */
+      int alt = specs[nspecs_done].info.alt;
+      int space = specs[nspecs_done].info.space;
+      int left = specs[nspecs_done].info.left;
+      int showsign = specs[nspecs_done].info.showsign;
+      int group = specs[nspecs_done].info.group;
+      int is_long_double = specs[nspecs_done].info.is_long_double;
+      int is_short = specs[nspecs_done].info.is_short;
+      int is_char = specs[nspecs_done].info.is_char;
+      int is_long = specs[nspecs_done].info.is_long;
+      int width = specs[nspecs_done].info.width;
+      int prec = specs[nspecs_done].info.prec;
+      int use_outdigits = specs[nspecs_done].info.i18n;
+      char pad = specs[nspecs_done].info.pad;
+      CHAR_T spec = specs[nspecs_done].info.spec;
+
+      workstart = NULL;
+      CHAR_T *workend = work_buffer + WORK_BUFFER_SIZE;
+
+      /* Fill in last information.  */
+      if (specs[nspecs_done].width_arg != -1)
+	{
+	  /* Extract the field width from an argument.  */
+	  specs[nspecs_done].info.width =
+	    args_value[specs[nspecs_done].width_arg].pa_int;
+
+	  if (specs[nspecs_done].info.width < 0)
+	    /* If the width value is negative left justification is
+	       selected and the value is taken as being positive.  */
+	    {
+	      specs[nspecs_done].info.width *= -1;
+	      left = specs[nspecs_done].info.left = 1;
+	    }
+	  width = specs[nspecs_done].info.width;
+	}
+
+      if (specs[nspecs_done].prec_arg != -1)
+	{
+	  /* Extract the precision from an argument.  */
+	  specs[nspecs_done].info.prec =
+	    args_value[specs[nspecs_done].prec_arg].pa_int;
+
+	  if (specs[nspecs_done].info.prec < 0)
+	    /* If the precision is negative the precision is
+	       omitted.  */
+	    specs[nspecs_done].info.prec = -1;
+
+	  prec = specs[nspecs_done].info.prec;
+	}
+
+      /* Maybe the buffer is too small.  */
+      if (MAX (prec, width) + EXTSIZ > WORK_BUFFER_SIZE)
+	{
+	  if (__libc_use_alloca ((MAX (prec, width) + EXTSIZ)
+				 * sizeof (CHAR_T)))
+	    workend = ((CHAR_T *) alloca ((MAX (prec, width) + EXTSIZ)
+					  * sizeof (CHAR_T))
+		       + (MAX (prec, width) + EXTSIZ));
+	  else
+	    {
+	      workstart = (CHAR_T *) malloc ((MAX (prec, width) + EXTSIZ)
+					     * sizeof (CHAR_T));
+	      if (workstart == NULL)
+		{
+		  done = -1;
+		  goto all_done;
+		}
+	      workend = workstart + (MAX (prec, width) + EXTSIZ);
+	    }
+	}
+
+      /* Process format specifiers.  */
+      while (1)
+	{
+	  extern printf_function **__printf_function_table;
+	  int function_done;
+
+	  if (spec <= UCHAR_MAX
+	      && __printf_function_table != NULL
+	      && __printf_function_table[(size_t) spec] != NULL)
+	    {
+	      const void **ptr = alloca (specs[nspecs_done].ndata_args
+					 * sizeof (const void *));
+
+	      /* Fill in an array of pointers to the argument values.  */
+	      for (unsigned int i = 0; i < specs[nspecs_done].ndata_args;
+		   ++i)
+		ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
+
+	      /* Call the function.  */
+	      function_done = __printf_function_table[(size_t) spec]
+		(s, &specs[nspecs_done].info, ptr);
+
+	      if (function_done != -2)
+		{
+		  /* If an error occurred we don't have information
+		     about # of chars.  */
+		  if (function_done < 0)
+		    {
+		      /* Function has set errno.  */
+		      done = -1;
+		      goto all_done;
+		    }
+
+		  done_add (function_done);
+		  break;
+		}
+	    }
+
+	  JUMP (spec, step4_jumps);
+
+	  process_arg ((&specs[nspecs_done]));
+	  process_string_arg ((&specs[nspecs_done]));
+
+	  LABEL (form_unknown):
+	  {
+	    unsigned int i;
+	    const void **ptr;
+
+	    ptr = alloca (specs[nspecs_done].ndata_args
+			  * sizeof (const void *));
+
+	    /* Fill in an array of pointers to the argument values.  */
+	    for (i = 0; i < specs[nspecs_done].ndata_args; ++i)
+	      ptr[i] = &args_value[specs[nspecs_done].data_arg + i];
+
+	    /* Call the function.  */
+	    function_done = printf_unknown (s, &specs[nspecs_done].info,
+					    ptr);
+
+	    /* If an error occurred we don't have information about #
+	       of chars.  */
+	    if (function_done < 0)
+	      {
+		/* Function has set errno.  */
+		done = -1;
+		goto all_done;
+	      }
+
+	    done_add (function_done);
+	  }
+	  break;
+	}
+
+      if (__glibc_unlikely (workstart != NULL))
+	free (workstart);
+      workstart = NULL;
+
+      /* Write the following constant string.  */
+      outstring (specs[nspecs_done].end_of_fmt,
+		 specs[nspecs_done].next_fmt
+		 - specs[nspecs_done].end_of_fmt);
+    }
+ all_done:
+  if (__glibc_unlikely (workstart != NULL))
+    free (workstart);
+  scratch_buffer_free (&argsbuf);
+  scratch_buffer_free (&specsbuf);
+  return done;
+}
+
+/* Handle an unknown format specifier.  This prints out a canonicalized
+   representation of the format spec itself.  */
+static int
+printf_unknown (FILE *s, const struct printf_info *info,
+		const void *const *args)
+
+{
+  int done = 0;
+  CHAR_T work_buffer[MAX (sizeof (info->width), sizeof (info->prec)) * 3];
+  CHAR_T *const workend
+    = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
+  CHAR_T *w;
+
+  outchar (L_('%'));
+
+  if (info->alt)
+    outchar (L_('#'));
+  if (info->group)
+    outchar (L_('\''));
+  if (info->showsign)
+    outchar (L_('+'));
+  else if (info->space)
+    outchar (L_(' '));
+  if (info->left)
+    outchar (L_('-'));
+  if (info->pad == L_('0'))
+    outchar (L_('0'));
+  if (info->i18n)
+    outchar (L_('I'));
+
+  if (info->width != 0)
+    {
+      w = _itoa_word (info->width, workend, 10, 0);
+      while (w < workend)
+	outchar (*w++);
+    }
+
+  if (info->prec != -1)
+    {
+      outchar (L_('.'));
+      w = _itoa_word (info->prec, workend, 10, 0);
+      while (w < workend)
+	outchar (*w++);
+    }
+
+  if (info->spec != L_('\0'))
+    outchar (info->spec);
+
+ all_done:
+  return done;
+}
+
+/* Group the digits from W to REAR_PTR according to the grouping rules
+   of the current locale.  The interpretation of GROUPING is as in
+   `struct lconv' from <locale.h>.  The grouped number extends from
+   the returned pointer until REAR_PTR.  FRONT_PTR to W is used as a
+   scratch area.  */
+static CHAR_T *
+group_number (CHAR_T *front_ptr, CHAR_T *w, CHAR_T *rear_ptr,
+	      const char *grouping, THOUSANDS_SEP_T thousands_sep)
+{
+  /* Length of the current group.  */
+  int len;
+#ifndef COMPILE_WPRINTF
+  /* Length of the separator (in wide mode, the separator is always a
+     single wide character).  */
+  int tlen = strlen (thousands_sep);
+#endif
+
+  /* We treat all negative values like CHAR_MAX.  */
+
+  if (*grouping == CHAR_MAX || *grouping <= 0)
+    /* No grouping should be done.  */
+    return w;
+
+  len = *grouping++;
+
+  /* Copy existing string so that nothing gets overwritten.  */
+  memmove (front_ptr, w, (rear_ptr - w) * sizeof (CHAR_T));
+  CHAR_T *s = front_ptr + (rear_ptr - w);
+
+  w = rear_ptr;
+
+  /* Process all characters in the string.  */
+  while (s > front_ptr)
+    {
+      *--w = *--s;
+
+      if (--len == 0 && s > front_ptr)
+	{
+	  /* A new group begins.  */
+#ifdef COMPILE_WPRINTF
+	  if (w != s)
+	    *--w = thousands_sep;
+	  else
+	    /* Not enough room for the separator.  */
+	    goto copy_rest;
+#else
+	  int cnt = tlen;
+	  if (tlen < w - s)
+	    do
+	      *--w = thousands_sep[--cnt];
+	    while (cnt > 0);
+	  else
+	    /* Not enough room for the separator.  */
+	    goto copy_rest;
+#endif
+
+	  if (*grouping == CHAR_MAX
+#if CHAR_MIN < 0
+		   || *grouping < 0
+#endif
+		   )
+	    {
+	    copy_rest:
+	      /* No further grouping to be done.  Copy the rest of the
+		 number.  */
+	      memmove (w, s, (front_ptr -s) * sizeof (CHAR_T));
+	      break;
+	    }
+	  else if (*grouping != '\0')
+	    len = *grouping++;
+	  else
+	    /* The previous grouping repeats ad infinitum.  */
+	    len = grouping[-1];
+	}
+    }
+  return w;
+}
+
+/* Helper "class" for `fprintf to unbuffered': creates a temporary buffer.  */
+struct helper_file
+  {
+    struct _IO_FILE_plus _f;
+#ifdef COMPILE_WPRINTF
+    struct _IO_wide_data _wide_data;
+#endif
+    FILE *_put_stream;
+#ifdef _IO_MTSAFE_IO
+    _IO_lock_t lock;
+#endif
+  };
+
+static int
+_IO_helper_overflow (FILE *s, int c)
+{
+  FILE *target = ((struct helper_file*) s)->_put_stream;
+#ifdef COMPILE_WPRINTF
+  int used = s->_wide_data->_IO_write_ptr - s->_wide_data->_IO_write_base;
+  if (used)
+    {
+      size_t written = _IO_sputn (target, s->_wide_data->_IO_write_base, used);
+      if (written == 0 || written == WEOF)
+	return WEOF;
+      __wmemmove (s->_wide_data->_IO_write_base,
+		  s->_wide_data->_IO_write_base + written,
+		  used - written);
+      s->_wide_data->_IO_write_ptr -= written;
+    }
+#else
+  int used = s->_IO_write_ptr - s->_IO_write_base;
+  if (used)
+    {
+      size_t written = _IO_sputn (target, s->_IO_write_base, used);
+      if (written == 0 || written == EOF)
+	return EOF;
+      memmove (s->_IO_write_base, s->_IO_write_base + written,
+	       used - written);
+      s->_IO_write_ptr -= written;
+    }
+#endif
+  return PUTC (c, s);
+}
+
+#ifdef COMPILE_WPRINTF
+static const struct _IO_jump_t _IO_helper_jumps libio_vtable =
+{
+  JUMP_INIT_DUMMY,
+  JUMP_INIT (finish, _IO_wdefault_finish),
+  JUMP_INIT (overflow, _IO_helper_overflow),
+  JUMP_INIT (underflow, _IO_default_underflow),
+  JUMP_INIT (uflow, _IO_default_uflow),
+  JUMP_INIT (pbackfail, (_IO_pbackfail_t) _IO_wdefault_pbackfail),
+  JUMP_INIT (xsputn, _IO_wdefault_xsputn),
+  JUMP_INIT (xsgetn, _IO_wdefault_xsgetn),
+  JUMP_INIT (seekoff, _IO_default_seekoff),
+  JUMP_INIT (seekpos, _IO_default_seekpos),
+  JUMP_INIT (setbuf, _IO_default_setbuf),
+  JUMP_INIT (sync, _IO_default_sync),
+  JUMP_INIT (doallocate, _IO_wdefault_doallocate),
+  JUMP_INIT (read, _IO_default_read),
+  JUMP_INIT (write, _IO_default_write),
+  JUMP_INIT (seek, _IO_default_seek),
+  JUMP_INIT (close, _IO_default_close),
+  JUMP_INIT (stat, _IO_default_stat)
+};
+#else
+static const struct _IO_jump_t _IO_helper_jumps libio_vtable =
+{
+  JUMP_INIT_DUMMY,
+  JUMP_INIT (finish, _IO_default_finish),
+  JUMP_INIT (overflow, _IO_helper_overflow),
+  JUMP_INIT (underflow, _IO_default_underflow),
+  JUMP_INIT (uflow, _IO_default_uflow),
+  JUMP_INIT (pbackfail, _IO_default_pbackfail),
+  JUMP_INIT (xsputn, _IO_default_xsputn),
+  JUMP_INIT (xsgetn, _IO_default_xsgetn),
+  JUMP_INIT (seekoff, _IO_default_seekoff),
+  JUMP_INIT (seekpos, _IO_default_seekpos),
+  JUMP_INIT (setbuf, _IO_default_setbuf),
+  JUMP_INIT (sync, _IO_default_sync),
+  JUMP_INIT (doallocate, _IO_default_doallocate),
+  JUMP_INIT (read, _IO_default_read),
+  JUMP_INIT (write, _IO_default_write),
+  JUMP_INIT (seek, _IO_default_seek),
+  JUMP_INIT (close, _IO_default_close),
+  JUMP_INIT (stat, _IO_default_stat)
+};
+#endif
+
+static int
+buffered_vfprintf (FILE *s, const CHAR_T *format, va_list args,
+		   unsigned int mode_flags)
+{
+  CHAR_T buf[BUFSIZ];
+  struct helper_file helper;
+  FILE *hp = (FILE *) &helper._f;
+  int result, to_flush;
+
+  /* Orient the stream.  */
+#ifdef ORIENT
+  ORIENT;
+#endif
+
+  /* Initialize helper.  */
+  helper._put_stream = s;
+#ifdef COMPILE_WPRINTF
+  hp->_wide_data = &helper._wide_data;
+  _IO_wsetp (hp, buf, buf + sizeof buf / sizeof (CHAR_T));
+  hp->_mode = 1;
+#else
+  _IO_setp (hp, buf, buf + sizeof buf);
+  hp->_mode = -1;
+#endif
+  hp->_flags = _IO_MAGIC|_IO_NO_READS|_IO_USER_LOCK;
+#if _IO_JUMPS_OFFSET
+  hp->_vtable_offset = 0;
+#endif
+#ifdef _IO_MTSAFE_IO
+  hp->_lock = NULL;
+#endif
+  hp->_flags2 = s->_flags2;
+  _IO_JUMPS (&helper._f) = (struct _IO_jump_t *) &_IO_helper_jumps;
+
+  /* Now print to helper instead.  */
+  result = vfprintf (hp, format, args, mode_flags);
+
+  /* Lock stream.  */
+  __libc_cleanup_region_start (1, (void (*) (void *)) &_IO_funlockfile, s);
+  _IO_flockfile (s);
+
+  /* Now flush anything from the helper to the S. */
+#ifdef COMPILE_WPRINTF
+  if ((to_flush = (hp->_wide_data->_IO_write_ptr
+		   - hp->_wide_data->_IO_write_base)) > 0)
+    {
+      if ((int) _IO_sputn (s, hp->_wide_data->_IO_write_base, to_flush)
+	  != to_flush)
+	result = -1;
+    }
+#else
+  if ((to_flush = hp->_IO_write_ptr - hp->_IO_write_base) > 0)
+    {
+      if ((int) _IO_sputn (s, hp->_IO_write_base, to_flush) != to_flush)
+	result = -1;
+    }
+#endif
+
+  /* Unlock the stream.  */
+  _IO_funlockfile (s);
+  __libc_cleanup_region_end (0);
+
+  return result;
+}