Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 117 insertions, 0 deletions

diff --git a/REORG.TODO/stdio-common/_i18n_number.h b/REORG.TODO/stdio-common/_i18n_number.h
new file mode 100644
index 0000000000..080e8141b9
--- /dev/null
+++ b/REORG.TODO/stdio-common/_i18n_number.h
@@ -0,0 +1,117 @@
+/* Copyright (C) 2000-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@gnu.org>, 2000.
+
+   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 <stdbool.h>
+#include <wchar.h>
+#include <wctype.h>
+
+#include "../locale/outdigits.h"
+#include "../locale/outdigitswc.h"
+
+static CHAR_T *
+_i18n_number_rewrite (CHAR_T *w, CHAR_T *rear_ptr, CHAR_T *end)
+{
+#ifdef COMPILE_WPRINTF
+# define decimal NULL
+# define thousands NULL
+#else
+  char decimal[MB_LEN_MAX + 1];
+  char thousands[MB_LEN_MAX + 1];
+#endif
+
+  /* "to_outpunct" is a map from ASCII decimal point and thousands-sep
+     to their equivalent in locale. This is defined for locales which
+     use extra decimal point and thousands-sep.  */
+  wctrans_t map = __wctrans ("to_outpunct");
+  wint_t wdecimal = __towctrans (L'.', map);
+  wint_t wthousands = __towctrans (L',', map);
+
+#ifndef COMPILE_WPRINTF
+  if (__glibc_unlikely (map != NULL))
+    {
+      mbstate_t state;
+      memset (&state, '\0', sizeof (state));
+
+      size_t n = __wcrtomb (decimal, wdecimal, &state);
+      if (n == (size_t) -1)
+	memcpy (decimal, ".", 2);
+      else
+	decimal[n] = '\0';
+
+      memset (&state, '\0', sizeof (state));
+
+      n = __wcrtomb (thousands, wthousands, &state);
+      if (n == (size_t) -1)
+	memcpy (thousands, ",", 2);
+      else
+	thousands[n] = '\0';
+    }
+#endif
+
+  /* Copy existing string so that nothing gets overwritten.  */
+  CHAR_T *src;
+  bool use_alloca = __libc_use_alloca ((rear_ptr - w) * sizeof (CHAR_T));
+  if (__builtin_expect (use_alloca, true))
+    src = (CHAR_T *) alloca ((rear_ptr - w) * sizeof (CHAR_T));
+  else
+    {
+      src = (CHAR_T *) malloc ((rear_ptr - w) * sizeof (CHAR_T));
+      if (src == NULL)
+	/* If we cannot allocate the memory don't rewrite the string.
+	   It is better than nothing.  */
+	return w;
+    }
+
+  CHAR_T *s = (CHAR_T *) __mempcpy (src, w,
+				    (rear_ptr - w) * sizeof (CHAR_T));
+
+  w = end;
+
+  /* Process all characters in the string.  */
+  while (--s >= src)
+    {
+      if (*s >= '0' && *s <= '9')
+	{
+	  if (sizeof (CHAR_T) == 1)
+	    w = (CHAR_T *) outdigit_value ((char *) w, *s - '0');
+	  else
+	    *--w = (CHAR_T) outdigitwc_value (*s - '0');
+	}
+      else if (__builtin_expect (map == NULL, 1) || (*s != '.' && *s != ','))
+	*--w = *s;
+      else
+	{
+	  if (sizeof (CHAR_T) == 1)
+	    {
+	      const char *outpunct = *s == '.' ? decimal : thousands;
+	      size_t dlen = strlen (outpunct);
+
+	      w -= dlen;
+	      while (dlen-- > 0)
+		w[dlen] = outpunct[dlen];
+	    }
+	  else
+	    *--w = *s == '.' ? (CHAR_T) wdecimal : (CHAR_T) wthousands;
+	}
+    }
+
+  if (! use_alloca)
+    free (src);
+
+  return w;
+}