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author | Ulrich Drepper <drepper@redhat.com> | 1999-06-16 22:55:47 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1999-06-16 22:55:47 +0000 |
commit | d64b6ad07585b8a37e5fecc9a47fcee766d52ede (patch) | |
tree | 076b36cc9c1b82254348212e75939d842885563a /stdio-common/_itowa.c | |
parent | bc938d3de936a8e429b16237180c046139be8247 (diff) | |
download | glibc-d64b6ad07585b8a37e5fecc9a47fcee766d52ede.tar.gz glibc-d64b6ad07585b8a37e5fecc9a47fcee766d52ede.tar.xz glibc-d64b6ad07585b8a37e5fecc9a47fcee766d52ede.zip |
Update.
* Versions.def: Add GLIBC_2.2 for libc. * iconv/gconv.h: Make header suitable for inclusion in public header by protecting all names with __. * iconv/gconv.c: Adapt for symbol name changes. * iconv/gconv.h: Likewise. * iconv/gconv_builtin.c: Likewise. * iconv/gconv_close.c: Likewise. * iconv/gconv_db.c: Likewise. * iconv/gconv_dl.c: Likewise. * iconv/gconv_int.h: Likewise. * iconv/gconv_open.c: Likewise. * iconv/gconv_simple.c: Likewise. * iconv/iconv.c: Likewise. * iconv/iconv_close.c: Likewise. * iconv/iconv_open.c: Likewise. * iconv/loop.c: Likewise. * iconv/skeleton.c: Likewise. * iconvdata/8bit-gap.c: Likewise. * iconvdata/8bit-generic.c: Likewise. * iconvdata/ansi_x3.110.c: Likewise. * iconvdata/big5.c: Likewise. * iconvdata/cns11643.h: Likewise. * iconvdata/cns11643l1.h: Likewise. * iconvdata/euc-cn.c: Likewise. * iconvdata/euc-jp.c: Likewise. * iconvdata/euc-kr.c: Likewise. * iconvdata/euc-tw.c: Likewise. * iconvdata/gb2312.h: Likewise. * iconvdata/iso-2022-jp.c: Likewise. * iconvdata/iso-2022-kr.c: Likewise. * iconvdata/iso646.c: Likewise. * iconvdata/iso8859-1.c: Likewise. * iconvdata/iso_6937-2.c: Likewise. * iconvdata/iso_6937.c: Likewise. * iconvdata/jis0201.h: Likewise. * iconvdata/jis0208.h: Likewise. * iconvdata/jis0212.h: Likewise. * iconvdata/johab.c: Likewise. * iconvdata/ksc5601.h: Likewise. * iconvdata/sjis.c: Likewise. * iconvdata/t.61.c: Likewise. * iconvdata/uhc.c: Likewise. * stdlib/mblen.c: Likewise. * stdlib/mbtowc.c: Likewise. * stdlib/wctomb.c: Likewise. * wcsmbs/btowc.c: Likewise. * wcsmbs/mbrtowc.c: Likewise. * wcsmbs/mbsnrtowcs.c: Likewise. * wcsmbs/mbsrtowcs.c: Likewise. * wcsmbs/wchar.h: Likewise. * wcsmbs/wcrtomb.c: Likewise. * wcsmbs/wcsmbsload.c: Likewise. * wcsmbs/wcsmbsload.h: Likewise. * wcsmbs/wcsnrtombs.c: Likewise. * wcsmbs/wcsrtombs.c: Likewise. * wcsmbs/wctob.c: Likewise. * include/limits.h (MB_LEN_MAX): Increase to 16. * sysdeps/generic/_G_config.h: Define _G_fpos_t as struct. Define _G_iconv_t. * sysdeps/unix/sysv/linux/_G_config.h: Likewise. * include/wchar.h: Change mbstate_t to __mbstate_t. * libio/Makefile (routines): Add wfiledoalloc, oldiofgetpos, oldiofgetpos64, oldiofsetpos, oldiofsetpos64, fputwc, fputwc_u, getwc, getwc_u, getwchar, getwchar_u, iofgetws, iofgetws_u, iofputws, iofputws_u, iogetwline, iowpadn, ioungetwc, putwc, putwc_u, putchar, putchar_u, swprintf, vwprintf, wprintf, wscanf, fwscanf, vwscanf, vswprintf, iovswscanf, swscanf, wgenops, wstrops, wfileops, and iofwide. (tests): Add tst_swprintf, tst_wprintf, tst_swscanf, and tst_wscanf. * libio/Versions: Add _IO_fgetpos, _IO_fgetpos64, _IO_fsetpos, _IO_fsetpos64, fgetpos, fgetpos64, fgetwc, fgetwc_unlocked, fgetws, fgetws_unlocked, fputwc, fputwc_unlocked, fputws, fputws_unlocked, fsetpos, fsetpos64, fwide, fwprintf, fwscanf, getwc, getwc_unlocked, getwchar, getwchar_unlocked, putwc, putwc_unlocked, putwchar, putwchar_unlocked, swprintf, swscanf, ungetwc, vfwprintf, vswprintf, vwprintf, vfwscanf, vswscanf, vwscanf, wprintf, and wscanf to GLIBC_2.2 for libc. * libio/libio.h: Define codecvt struct. Define _IO_wide_data. Extend _IO_file contain pointer to codecvt, widedata and mode. (_IO_getwc_unlocked): New macro. (_IO_putwc_unlocked): New macro. (_IO_fwide): New macro. * libio/libioP.h: Add new prototypes and adjust existing declarations. * libio/fileops.c (_IO_new_file_close_it): Reset normal or widedata buffers based on mode. (new_do_write): Set _IO_write_end to _IO_buf_end if stream is wide oriented. (_IO_new_file_overflow): Don't depend only on _IO_CURRENTLY_PUTTING flag to be enough to signal unallocated buffer. For wide oriented stream don't make it linebuffered. Don't use _IO_do_flush, use _IO_new_do_write directly. (_IO_new_file_seekoff): Change return value type to _IO_off64_t. (_IO_file_seek): Likewise. * libio/genops.c (_IO_least_marker): Make global. (__underflow): Orient stream if not already done. (__uflow): Likewise. (_IO_default_seekpos): Change to type _IO_off64_t. (_IO_default_seekoff): Likewise. (_IO_default_seek): Likewise. (_IO_no_init): New function. Similar to _IO_init but allows to orient in initialization. * libio/iolibio.h: Add prototype for _IO_vswprintf. Change _IO_pos_BAD to use _IO_off64_t. * libio/ftello.c: Use _IO_off_t. For now abort when use with wide char stream. * libio/ftello64.c: Likewise. * libio/ioftell.c: Likewise. * libio/iofopncook.c: Likewise. * libio/ioseekoff.c: Likewise. * libio/ioseekpos.c: Likewise. * libio/oldfileops.c: Likewise. * libio/iofgetpos.c: Store state of conversion if necessary. * libio/iofgetpos64.c: Likewise. * libio/iofsetpos.c: Restore conversion state if necessary. * libio/iofsetpos64.c: Likewise. * libio/iofdopen.c: Initialize so that stream can be wide oriented. * libio/iofopen.c: Likewise. * libio/iofopen64.c: Likewise. * libio/iopopen.c: Likewise. * libio/iovdprintf.c: Likewise. * libio/iovsprintf.c: Likewise. * libio/iovsscanf.c: Likewise. * libio/memstream.c: Likewise. * libio/obprintf.c: Likewise. * libio/iofputs.c: Orient stream if not already happened. * libio/iofputs_u.c: Likewise. * libio/iofwrite.c: Likewise. * libio/iofwrite_u.c: Likewise. * libio/ioputs.c: Likewise. * libio/iosetbuffer.c: Handle not yet oriented stream. * libio/iosetvbuf.c: Likewise. * libio/oldstdfiles.c: Adjust FILEBUF_LITERAL call. * libio/stdfiles.c: Likewise. * libio/strops.c (_IO_str_overflow): Correctly free buffer after failed allocation. (_IO_str_seekoff): Use _IO_off64_t. * libio/vasprintf.c: Pre-orient stream. * libio/vsnprintf.c: Likewise. * libio/fputwc.c: New file. * libio/fputwc_u.c: New file. * libio/fwprintf.c: New file. * libio/fwscanf.c: New file. * libio/getwc.c: New file. * libio/getwc_u.c: New file. * libio/getwchar.c: New file. * libio/getwchar_u.c: New file. * libio/iofgetws.c: New file. * libio/iofgetws_u.c: New file. * libio/iofputws.c: New file. * libio/iofputws_u.c: New file. * libio/iofwide.c: New file. * libio/iogetwline.c: New file. * libio/ioungetwc.c: New file. * libio/iovswscanf.c: New file. * libio/iowpadn.c: New file. * libio/oldiofgetpos.c: New file. * libio/oldiofgetpos64.c: New file. * libio/oldiofsetpos.c: New file. * libio/oldiofsetpos64.c: New file. * libio/putwc.c: New file. * libio/putwc_u.c: New file. * libio/putwchar.c: New file. * libio/putwchar_u.c: New file. * libio/swprintf.c: New file. * libio/swscanf.c: New file. * libio/tst_swprintf.c: New file. * libio/tst_swscanf.c: New file. * libio/tst_wprintf.c: New file. * libio/tst_wscanf.c: New file. * libio/tst_wscanf.input: New file. * libio/vswprintf.c: New file. * libio/vwprintf.c: New file. * libio/vwscanf.c: New file. * libio/wfiledoalloc.c: New file. * libio/wfileops.c: New file. * libio/wgenops.c: New file. * libio/wprintf.c: New file. * libio/wscanf.c: New file. * libio/wstrops.c: New file. * stdio-common/Makefile (routines): Add _itowa, itowa-digits, vfwprintf, and vfwscanf. * stdio-common/_itoa.c (base_table): Rename to _IO_base_table and make global. * stdio-common/_itowa.c: New file. * stdio-common/_itowa.h: New file. * stdio-common/itoa-digits.c: Minimal optimization. * stdio-common/itowa-digits.c: New file. * stdio-common/printf-parse.h: Allow use in wide character context. * stdio-common/printf-prs.c: Define ISASCII and MBRLEN. * stdio-common/printf.h (printf_info): Add wide bit. * stdio-common/printf_fp.c: Determine from wide bit whether stream is wide oriented or not. * stdio-common/printf_size.c: Likewise. * sysdeps/generic/printf_fphex.c: Likewise. * stdlib/strfmon.c: Call __printf_fp with wide bit cleared. * stdio-common/vfprintf.c: Rewrite to allow use in wide character context. * stdio-common/vfscand.c: Likewise. * stdio-common/vfwprintf.c: New file. * stdio-common/vfwscanf.c: New file. * time/Makefile (routines): Add wcsftime. (tests): Add tst_wcsftime. * time/Versions: Add wcsftime to GLIBC_2.2 for libc. * time/strftime.c: Make usable as wcsftime. * time/wcsftime.c: New file. * time/tst_wcsftime.c: New file. * wcsmbs/Makefile (routines): Add wmempcpy and wcschrnul. * wcsmbs/Versions: Add wmempcpy and wcschrnul to GLIBC_2.2 for libc. * wcsmbs/wcschrnul.c: New file. * wcsmbs/wmemcpy.c: New file. * wcsmbs/wmemcpy.c: Rename to __wmemcpy and make wmemcpy weak alias. * wcsmbs/wmemmove.c: Likewise for wmemmove. * manual/stdio.texi: Document is_char and wide element if printf_info. * manual/time.texi: Document wcsftime. * include/wchar.h: Add prototypes for __wmemcpy, __wmempcpy, __wmemmove, __wcschrnul, and __vfwscanf. * locale/langinfo.h: Add new LC_TIME entries for wchar_t data. * locale/C-time.c: Adapt for above change. * locale/categories.def: Likewise. * locale/localeinfo.h: Likewise. * localedata/Makefile: Don't run tests for now.
Diffstat (limited to 'stdio-common/_itowa.c')
-rw-r--r-- | stdio-common/_itowa.c | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/stdio-common/_itowa.c b/stdio-common/_itowa.c new file mode 100644 index 0000000000..430415b96b --- /dev/null +++ b/stdio-common/_itowa.c @@ -0,0 +1,346 @@ +/* Internal function for converting integers to ASCII. + Copyright (C) 1994, 1995, 1996, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Torbjorn Granlund <tege@matematik.su.se> + and Ulrich Drepper <drepper@gnu.org>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <gmp-mparam.h> +#include <stdlib/gmp.h> +#include <stdlib/gmp-impl.h> +#include <stdlib/longlong.h> + +#include "_itowa.h" + + +/* Canonize environment. For some architectures not all values might + be defined in the GMP header files. */ +#ifndef UMUL_TIME +# define UMUL_TIME 1 +#endif +#ifndef UDIV_TIME +# define UDIV_TIME 3 +#endif + +/* Control memory layout. */ +#ifdef PACK +# undef PACK +# define PACK __attribute__ ((packed)) +#else +# define PACK +#endif + + +/* Declare local types. */ +struct base_table_t +{ +#if (UDIV_TIME > 2 * UMUL_TIME) + mp_limb_t base_multiplier; +#endif + char flag; + char post_shift; +#if BITS_PER_MP_LIMB == 32 + struct + { + char normalization_steps; + char ndigits; + mp_limb_t base PACK; +#if UDIV_TIME > 2 * UMUL_TIME + mp_limb_t base_ninv PACK; +#endif + } big; +#endif +}; + +/* To reduce the memory needed we include some fields of the tables + only conditionally. */ +#if UDIV_TIME > 2 * UMUL_TIME +# define SEL1(X) X, +# define SEL2(X) ,X +#else +# define SEL1(X) +# define SEL2(X) +#endif + +/* Factor table for the different bases. */ +extern const struct base_table_t _itoa_base_table[]; + +/* Lower-case digits. */ +extern const wchar_t _itowa_lower_digits[]; +/* Upper-case digits. */ +extern const wchar_t _itowa_upper_digits[]; + + +wchar_t * +_itowa (value, buflim, base, upper_case) + unsigned long long int value; + wchar_t *buflim; + unsigned int base; + int upper_case; +{ + const wchar_t *digits = (upper_case + ? _itowa_upper_digits : _itowa_lower_digits); + wchar_t *bp = buflim; + const struct base_table_t *brec = &_itoa_base_table[base - 2]; + + switch (base) + { +#define RUN_2N(BITS) \ + do \ + { \ + /* `unsigned long long int' always has 64 bits. */ \ + mp_limb_t work_hi = value >> (64 - BITS_PER_MP_LIMB); \ + \ + if (BITS_PER_MP_LIMB == 32) \ + { \ + if (work_hi != 0) \ + { \ + mp_limb_t work_lo; \ + int cnt; \ + \ + work_lo = value & 0xfffffffful; \ + for (cnt = BITS_PER_MP_LIMB / BITS; cnt > 0; --cnt) \ + { \ + *--bp = digits[work_lo & ((1ul << BITS) - 1)]; \ + work_lo >>= BITS; \ + } \ + if (BITS_PER_MP_LIMB % BITS != 0) \ + { \ + work_lo \ + |= ((work_hi \ + & ((1 << (BITS - BITS_PER_MP_LIMB%BITS)) \ + - 1)) \ + << BITS_PER_MP_LIMB % BITS); \ + work_hi >>= BITS - BITS_PER_MP_LIMB % BITS; \ + if (work_hi == 0) \ + work_hi = work_lo; \ + else \ + *--bp = digits[work_lo]; \ + } \ + } \ + else \ + work_hi = value & 0xfffffffful; \ + } \ + do \ + { \ + *--bp = digits[work_hi & ((1 << BITS) - 1)]; \ + work_hi >>= BITS; \ + } \ + while (work_hi != 0); \ + } \ + while (0) + case 8: + RUN_2N (3); + break; + + case 16: + RUN_2N (4); + break; + + default: + { +#if BITS_PER_MP_LIMB == 64 + mp_limb_t base_multiplier = brec->base_multiplier; + if (brec->flag) + while (value != 0) + { + mp_limb_t quo, rem, x, dummy; + + umul_ppmm (x, dummy, value, base_multiplier); + quo = (x + ((value - x) >> 1)) >> (brec->post_shift - 1); + rem = value - quo * base; + *--bp = digits[rem]; + value = quo; + } + else + while (value != 0) + { + mp_limb_t quo, rem, x, dummy; + + umul_ppmm (x, dummy, value, base_multiplier); + quo = x >> brec->post_shift; + rem = value - quo * base; + *--bp = digits[rem]; + value = quo; + } +#endif +#if BITS_PER_MP_LIMB == 32 + mp_limb_t t[3]; + int n; + + /* First convert x0 to 1-3 words in base s->big.base. + Optimize for frequent cases of 32 bit numbers. */ + if ((mp_limb_t) (value >> 32) >= 1) + { +#if UDIV_TIME > 2 * UMUL_TIME || UDIV_NEEDS_NORMALIZATION + int big_normalization_steps = brec->big.normalization_steps; + mp_limb_t big_base_norm + = brec->big.base << big_normalization_steps; +#endif + if ((mp_limb_t) (value >> 32) >= brec->big.base) + { + mp_limb_t x1hi, x1lo, r; + /* If you want to optimize this, take advantage of + that the quotient in the first udiv_qrnnd will + always be very small. It might be faster just to + subtract in a tight loop. */ + +#if UDIV_TIME > 2 * UMUL_TIME + mp_limb_t x, xh, xl; + + if (big_normalization_steps == 0) + xh = 0; + else + xh = (mp_limb_t) (value >> (64 - big_normalization_steps)); + xl = (mp_limb_t) (value >> (32 - big_normalization_steps)); + udiv_qrnnd_preinv (x1hi, r, xh, xl, big_base_norm, + brec->big.base_ninv); + + xl = ((mp_limb_t) value) << big_normalization_steps; + udiv_qrnnd_preinv (x1lo, x, r, xl, big_base_norm, + brec->big.base_ninv); + t[2] = x >> big_normalization_steps; + + if (big_normalization_steps == 0) + xh = x1hi; + else + xh = ((x1hi << big_normalization_steps) + | (x1lo >> (32 - big_normalization_steps))); + xl = x1lo << big_normalization_steps; + udiv_qrnnd_preinv (t[0], x, xh, xl, big_base_norm, + brec->big.base_ninv); + t[1] = x >> big_normalization_steps; +#elif UDIV_NEEDS_NORMALIZATION + mp_limb_t x, xh, xl; + + if (big_normalization_steps == 0) + xh = 0; + else + xh = (mp_limb_t) (value >> 64 - big_normalization_steps); + xl = (mp_limb_t) (value >> 32 - big_normalization_steps); + udiv_qrnnd (x1hi, r, xh, xl, big_base_norm); + + xl = ((mp_limb_t) value) << big_normalization_steps; + udiv_qrnnd (x1lo, x, r, xl, big_base_norm); + t[2] = x >> big_normalization_steps; + + if (big_normalization_steps == 0) + xh = x1hi; + else + xh = ((x1hi << big_normalization_steps) + | (x1lo >> 32 - big_normalization_steps)); + xl = x1lo << big_normalization_steps; + udiv_qrnnd (t[0], x, xh, xl, big_base_norm); + t[1] = x >> big_normalization_steps; +#else + udiv_qrnnd (x1hi, r, 0, (mp_limb_t) (value >> 32), + brec->big.base); + udiv_qrnnd (x1lo, t[2], r, (mp_limb_t) value, brec->big.base); + udiv_qrnnd (t[0], t[1], x1hi, x1lo, brec->big.base); +#endif + n = 3; + } + else + { +#if (UDIV_TIME > 2 * UMUL_TIME) + mp_limb_t x; + + value <<= brec->big.normalization_steps; + udiv_qrnnd_preinv (t[0], x, (mp_limb_t) (value >> 32), + (mp_limb_t) value, big_base_norm, + brec->big.base_ninv); + t[1] = x >> brec->big.normalization_steps; +#elif UDIV_NEEDS_NORMALIZATION + mp_limb_t x; + + value <<= big_normalization_steps; + udiv_qrnnd (t[0], x, (mp_limb_t) (value >> 32), + (mp_limb_t) value, big_base_norm); + t[1] = x >> big_normalization_steps; +#else + udiv_qrnnd (t[0], t[1], (mp_limb_t) (value >> 32), + (mp_limb_t) value, brec->big.base); +#endif + n = 2; + } + } + else + { + t[0] = value; + n = 1; + } + + /* Convert the 1-3 words in t[], word by word, to ASCII. */ + do + { + mp_limb_t ti = t[--n]; + int ndig_for_this_limb = 0; + +#if UDIV_TIME > 2 * UMUL_TIME + mp_limb_t base_multiplier = brec->base_multiplier; + if (brec->flag) + while (ti != 0) + { + mp_limb_t quo, rem, x, dummy; + + umul_ppmm (x, dummy, ti, base_multiplier); + quo = (x + ((ti - x) >> 1)) >> (brec->post_shift - 1); + rem = ti - quo * base; + *--bp = digits[rem]; + ti = quo; + ++ndig_for_this_limb; + } + else + while (ti != 0) + { + mp_limb_t quo, rem, x, dummy; + + umul_ppmm (x, dummy, ti, base_multiplier); + quo = x >> brec->post_shift; + rem = ti - quo * base; + *--bp = digits[rem]; + ti = quo; + ++ndig_for_this_limb; + } +#else + while (ti != 0) + { + mp_limb_t quo, rem; + + quo = ti / base; + rem = ti % base; + *--bp = digits[rem]; + ti = quo; + ++ndig_for_this_limb; + } +#endif + /* If this wasn't the most significant word, pad with zeros. */ + if (n != 0) + while (ndig_for_this_limb < brec->big.ndigits) + { + *--bp = '0'; + ++ndig_for_this_limb; + } + } + while (n != 0); +#endif + } + break; + } + + return bp; +} |