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Sweden-Number/dlls/msvcrt/string.c

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/*
* MSVCRT string functions
*
* Copyright 1996,1998 Marcus Meissner
* Copyright 1996 Jukka Iivonen
* Copyright 1997,2000 Uwe Bonnes
* Copyright 2000 Jon Griffiths
*
* This 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.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <limits.h>
#include <locale.h>
#include <float.h>
#include "msvcrt.h"
#include "bnum.h"
#include "winnls.h"
#include "wine/asm.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
/*********************************************************************
* _mbsdup (MSVCRT.@)
* _strdup (MSVCRT.@)
*/
char* CDECL _strdup(const char* str)
{
if(str)
{
char * ret = malloc(strlen(str)+1);
if (ret) strcpy( ret, str );
return ret;
}
else return 0;
}
/*********************************************************************
* _strlwr_s_l (MSVCRT.@)
*/
int CDECL _strlwr_s_l(char *str, size_t len, _locale_t locale)
{
pthreadlocinfo locinfo;
char *ptr = str;
if (!str || !len)
{
*_errno() = EINVAL;
return EINVAL;
}
while (len && *ptr)
{
len--;
ptr++;
}
if (!len)
{
str[0] = '\0';
*_errno() = EINVAL;
return EINVAL;
}
if(!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
if(!locinfo->lc_handle[LC_CTYPE])
{
while (*str)
{
if (*str >= 'A' && *str <= 'Z')
*str -= 'A' - 'a';
str++;
}
}
else
{
while (*str)
{
*str = _tolower_l((unsigned char)*str, locale);
str++;
}
}
return 0;
}
/*********************************************************************
* _strlwr_s (MSVCRT.@)
*/
int CDECL _strlwr_s(char *str, size_t len)
{
return _strlwr_s_l(str, len, NULL);
}
/*********************************************************************
* _strlwr_l (MSVCRT.@)
*/
char* CDECL _strlwr_l(char *str, _locale_t locale)
{
_strlwr_s_l(str, -1, locale);
return str;
}
/*********************************************************************
* _strlwr (MSVCRT.@)
*/
char* CDECL _strlwr(char *str)
{
_strlwr_s_l(str, -1, NULL);
return str;
}
/*********************************************************************
* _strupr_s_l (MSVCRT.@)
*/
int CDECL _strupr_s_l(char *str, size_t len, _locale_t locale)
{
pthreadlocinfo locinfo;
char *ptr = str;
if (!str || !len)
{
*_errno() = EINVAL;
return EINVAL;
}
while (len && *ptr)
{
len--;
ptr++;
}
if (!len)
{
str[0] = '\0';
*_errno() = EINVAL;
return EINVAL;
}
if(!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
if(!locinfo->lc_handle[LC_CTYPE])
{
while (*str)
{
if (*str >= 'a' && *str <= 'z')
*str -= 'a' - 'A';
str++;
}
}
else
{
while (*str)
{
*str = _toupper_l((unsigned char)*str, locale);
str++;
}
}
return 0;
}
/*********************************************************************
* _strupr_s (MSVCRT.@)
*/
int CDECL _strupr_s(char *str, size_t len)
{
return _strupr_s_l(str, len, NULL);
}
/*********************************************************************
* _strupr_l (MSVCRT.@)
*/
char* CDECL _strupr_l(char *str, _locale_t locale)
{
_strupr_s_l(str, -1, locale);
return str;
}
/*********************************************************************
* _strupr (MSVCRT.@)
*/
char* CDECL _strupr(char *str)
{
_strupr_s_l(str, -1, NULL);
return str;
}
/*********************************************************************
* _strnset_s (MSVCRT.@)
*/
int CDECL _strnset_s(char *str, size_t size, int c, size_t count)
{
size_t i;
if(!str && !size && !count) return 0;
if(!MSVCRT_CHECK_PMT(str != NULL)) return EINVAL;
if(!MSVCRT_CHECK_PMT(size > 0)) return EINVAL;
for(i=0; i<size-1 && i<count; i++) {
if(!str[i]) return 0;
str[i] = c;
}
for(; i<size; i++)
if(!str[i]) return 0;
str[0] = 0;
_invalid_parameter(NULL, NULL, NULL, 0, 0);
*_errno() = EINVAL;
return EINVAL;
}
/*********************************************************************
* _strnset (MSVCRT.@)
*/
char* CDECL _strnset(char* str, int value, size_t len)
{
if (len > 0 && str)
while (*str && len--)
*str++ = value;
return str;
}
/*********************************************************************
* _strrev (MSVCRT.@)
*/
char* CDECL _strrev(char* str)
{
char * p1;
char * p2;
if (str && *str)
for (p1 = str, p2 = str + strlen(str) - 1; p2 > p1; ++p1, --p2)
{
*p1 ^= *p2;
*p2 ^= *p1;
*p1 ^= *p2;
}
return str;
}
/*********************************************************************
* _strset (MSVCRT.@)
*/
char* CDECL _strset(char* str, int value)
{
char *ptr = str;
while (*ptr)
*ptr++ = value;
return str;
}
/*********************************************************************
* strtok (MSVCRT.@)
*/
char * CDECL strtok( char *str, const char *delim )
{
thread_data_t *data = msvcrt_get_thread_data();
char *ret;
if (!str)
if (!(str = data->strtok_next)) return NULL;
while (*str && strchr( delim, *str )) str++;
if (!*str) return NULL;
ret = str++;
while (*str && !strchr( delim, *str )) str++;
if (*str) *str++ = 0;
data->strtok_next = str;
return ret;
}
/*********************************************************************
* strtok_s (MSVCRT.@)
*/
char * CDECL strtok_s(char *str, const char *delim, char **ctx)
{
if (!MSVCRT_CHECK_PMT(delim != NULL)) return NULL;
if (!MSVCRT_CHECK_PMT(ctx != NULL)) return NULL;
if (!MSVCRT_CHECK_PMT(str != NULL || *ctx != NULL)) return NULL;
if(!str)
str = *ctx;
while(*str && strchr(delim, *str))
str++;
if(!*str)
{
*ctx = str;
return NULL;
}
*ctx = str+1;
while(**ctx && !strchr(delim, **ctx))
(*ctx)++;
if(**ctx)
*(*ctx)++ = 0;
return str;
}
/*********************************************************************
* _swab (MSVCRT.@)
*/
void CDECL _swab(char* src, char* dst, int len)
{
if (len > 1)
{
len = (unsigned)len >> 1;
while (len--) {
char s0 = src[0];
char s1 = src[1];
*dst++ = s1;
*dst++ = s0;
src = src + 2;
}
}
}
static struct fpnum fpnum(int sign, int exp, ULONGLONG m, enum fpmod mod)
{
struct fpnum ret;
ret.sign = sign;
ret.exp = exp;
ret.m = m;
ret.mod = mod;
return ret;
}
int fpnum_double(struct fpnum *fp, double *d)
{
ULONGLONG bits = 0;
if (fp->mod == FP_VAL_INFINITY)
{
*d = fp->sign * INFINITY;
return 0;
}
if (fp->mod == FP_VAL_NAN)
{
bits = ~0;
if (fp->sign == 1)
bits &= ~((ULONGLONG)1 << (MANT_BITS + EXP_BITS - 1));
*d = *(double*)&bits;
return 0;
}
TRACE("%c %s *2^%d (round %d)\n", fp->sign == -1 ? '-' : '+',
wine_dbgstr_longlong(fp->m), fp->exp, fp->mod);
if (!fp->m)
{
*d = fp->sign * 0.0;
return 0;
}
/* make sure that we don't overflow modifying exponent */
if (fp->exp > 1<<EXP_BITS)
{
*d = fp->sign * INFINITY;
return ERANGE;
}
if (fp->exp < -(1<<EXP_BITS))
{
*d = fp->sign * 0.0;
return ERANGE;
}
fp->exp += MANT_BITS - 1;
/* normalize mantissa */
while(fp->m < (ULONGLONG)1 << (MANT_BITS-1))
{
fp->m <<= 1;
fp->exp--;
}
while(fp->m >= (ULONGLONG)1 << MANT_BITS)
{
if (fp->m & 1 || fp->mod != FP_ROUND_ZERO)
{
if (!(fp->m & 1)) fp->mod = FP_ROUND_DOWN;
else if(fp->mod == FP_ROUND_ZERO) fp->mod = FP_ROUND_EVEN;
else fp->mod = FP_ROUND_UP;
}
fp->m >>= 1;
fp->exp++;
}
fp->exp += (1 << (EXP_BITS-1)) - 1;
/* handle subnormals */
if (fp->exp <= 0)
{
if (fp->m & 1 && fp->mod == FP_ROUND_ZERO) fp->mod = FP_ROUND_EVEN;
else if (fp->m & 1) fp->mod = FP_ROUND_UP;
else if (fp->mod != FP_ROUND_ZERO) fp->mod = FP_ROUND_DOWN;
fp->m >>= 1;
}
while(fp->m && fp->exp<0)
{
if (fp->m & 1 && fp->mod == FP_ROUND_ZERO) fp->mod = FP_ROUND_EVEN;
else if (fp->m & 1) fp->mod = FP_ROUND_UP;
else if (fp->mod != FP_ROUND_ZERO) fp->mod = FP_ROUND_DOWN;
fp->m >>= 1;
fp->exp++;
}
/* round mantissa */
if (fp->mod == FP_ROUND_UP || (fp->mod == FP_ROUND_EVEN && fp->m & 1))
{
fp->m++;
/* handle subnormal that falls into regular range due to rounding */
if (fp->m == (ULONGLONG)1 << (MANT_BITS - 1))
{
fp->exp++;
}
else if (fp->m >= (ULONGLONG)1 << MANT_BITS)
{
fp->exp++;
fp->m >>= 1;
}
}
if (fp->exp >= (1<<EXP_BITS)-1)
{
*d = fp->sign * INFINITY;
return ERANGE;
}
if (!fp->m || fp->exp < 0)
{
*d = fp->sign * 0.0;
return ERANGE;
}
if (fp->sign == -1)
bits |= (ULONGLONG)1 << (MANT_BITS + EXP_BITS - 1);
bits |= (ULONGLONG)fp->exp << (MANT_BITS - 1);
bits |= fp->m & (((ULONGLONG)1 << (MANT_BITS - 1)) - 1);
TRACE("returning %s\n", wine_dbgstr_longlong(bits));
*d = *(double*)&bits;
return 0;
}
#define LDBL_EXP_BITS 15
#define LDBL_MANT_BITS 64
int fpnum_ldouble(struct fpnum *fp, MSVCRT__LDOUBLE *d)
{
if (fp->mod == FP_VAL_INFINITY)
{
d->x80[0] = 0;
d->x80[1] = 0x80000000;
d->x80[2] = (1 << LDBL_EXP_BITS) - 1;
if (fp->sign == -1)
d->x80[2] |= 1 << LDBL_EXP_BITS;
return 0;
}
if (fp->mod == FP_VAL_NAN)
{
d->x80[0] = ~0;
d->x80[1] = ~0;
d->x80[2] = (1 << LDBL_EXP_BITS) - 1;
if (fp->sign == -1)
d->x80[2] |= 1 << LDBL_EXP_BITS;
return 0;
}
TRACE("%c %s *2^%d (round %d)\n", fp->sign == -1 ? '-' : '+',
wine_dbgstr_longlong(fp->m), fp->exp, fp->mod);
if (!fp->m)
{
d->x80[0] = 0;
d->x80[1] = 0;
d->x80[2] = 0;
if (fp->sign == -1)
d->x80[2] |= 1 << LDBL_EXP_BITS;
return 0;
}
/* make sure that we don't overflow modifying exponent */
if (fp->exp > 1<<LDBL_EXP_BITS)
{
d->x80[0] = 0;
d->x80[1] = 0x80000000;
d->x80[2] = (1 << LDBL_EXP_BITS) - 1;
if (fp->sign == -1)
d->x80[2] |= 1 << LDBL_EXP_BITS;
return ERANGE;
}
if (fp->exp < -(1<<LDBL_EXP_BITS))
{
d->x80[0] = 0;
d->x80[1] = 0;
d->x80[2] = 0;
if (fp->sign == -1)
d->x80[2] |= 1 << LDBL_EXP_BITS;
return ERANGE;
}
fp->exp += LDBL_MANT_BITS - 1;
/* normalize mantissa */
while(fp->m < (ULONGLONG)1 << (LDBL_MANT_BITS-1))
{
fp->m <<= 1;
fp->exp--;
}
fp->exp += (1 << (LDBL_EXP_BITS-1)) - 1;
/* handle subnormals */
if (fp->exp <= 0)
{
if (fp->m & 1 && fp->mod == FP_ROUND_ZERO) fp->mod = FP_ROUND_EVEN;
else if (fp->m & 1) fp->mod = FP_ROUND_UP;
else if (fp->mod != FP_ROUND_ZERO) fp->mod = FP_ROUND_DOWN;
fp->m >>= 1;
}
while(fp->m && fp->exp<0)
{
if (fp->m & 1 && fp->mod == FP_ROUND_ZERO) fp->mod = FP_ROUND_EVEN;
else if (fp->m & 1) fp->mod = FP_ROUND_UP;
else if (fp->mod != FP_ROUND_ZERO) fp->mod = FP_ROUND_DOWN;
fp->m >>= 1;
fp->exp++;
}
/* round mantissa */
if (fp->mod == FP_ROUND_UP || (fp->mod == FP_ROUND_EVEN && fp->m & 1))
{
if (fp->m == UI64_MAX)
{
fp->m = (ULONGLONG)1 << (LDBL_MANT_BITS - 1);
fp->exp++;
}
else
{
fp->m++;
/* handle subnormal that falls into regular range due to rounding */
if ((fp->m ^ (fp->m - 1)) & ((ULONGLONG)1 << (LDBL_MANT_BITS - 1))) fp->exp++;
}
}
if (fp->exp >= (1<<LDBL_EXP_BITS)-1)
{
d->x80[0] = 0;
d->x80[1] = 0x80000000;
d->x80[2] = (1 << LDBL_EXP_BITS) - 1;
if (fp->sign == -1)
d->x80[2] |= 1 << LDBL_EXP_BITS;
return ERANGE;
}
if (!fp->m || fp->exp < 0)
{
d->x80[0] = 0;
d->x80[1] = 0;
d->x80[2] = 0;
if (fp->sign == -1)
d->x80[2] |= 1 << LDBL_EXP_BITS;
return ERANGE;
}
d->x80[0] = fp->m;
d->x80[1] = fp->m >> 32;
d->x80[2] = fp->exp;
if (fp->sign == -1)
d->x80[2] |= 1 << LDBL_EXP_BITS;
return 0;
}
#if _MSVCR_VER >= 140
static inline int hex2int(char c)
{
if (c >= '0' && c <= '9')
return c - '0';
else if (c >= 'a' && c <= 'f')
return c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
return c - 'A' + 10;
return -1;
}
static struct fpnum fpnum_parse16(wchar_t get(void *ctx), void unget(void *ctx),
void *ctx, int sign, pthreadlocinfo locinfo)
{
BOOL found_digit = FALSE, found_dp = FALSE;
enum fpmod round = FP_ROUND_ZERO;
wchar_t nch;
ULONGLONG m = 0;
int val, exp = 0;
nch = get(ctx);
while(m < UI64_MAX/16)
{
val = hex2int(nch);
if (val == -1) break;
found_digit = TRUE;
nch = get(ctx);
m = m*16 + val;
}
while(1)
{
val = hex2int(nch);
if (val == -1) break;
nch = get(ctx);
exp += 4;
if (val || round != FP_ROUND_ZERO)
{
if (val < 8) round = FP_ROUND_DOWN;
else if (val == 8 && round == FP_ROUND_ZERO) round = FP_ROUND_EVEN;
else round = FP_ROUND_UP;
}
}
if(nch == *locinfo->lconv->decimal_point)
{
found_dp = TRUE;
nch = get(ctx);
}
else if (!found_digit)
{
if(nch!=WEOF) unget(ctx);
unget(ctx);
return fpnum(0, 0, 0, 0);
}
while(m <= UI64_MAX/16)
{
val = hex2int(nch);
if (val == -1) break;
found_digit = TRUE;
nch = get(ctx);
m = m*16 + val;
exp -= 4;
}
while(1)
{
val = hex2int(nch);
if (val == -1) break;
nch = get(ctx);
if (val || round != FP_ROUND_ZERO)
{
if (val < 8) round = FP_ROUND_DOWN;
else if (val == 8 && round == FP_ROUND_ZERO) round = FP_ROUND_EVEN;
else round = FP_ROUND_UP;
}
}
if (!found_digit)
{
if (nch != WEOF) unget(ctx);
if (found_dp) unget(ctx);
unget(ctx);
return fpnum(0, 0, 0, 0);
}
if(nch=='p' || nch=='P') {
BOOL found_sign = FALSE;
int e=0, s=1;
nch = get(ctx);
if(nch == '-') {
found_sign = TRUE;
s = -1;
nch = get(ctx);
} else if(nch == '+') {
found_sign = TRUE;
nch = get(ctx);
}
if(nch>='0' && nch<='9') {
while(nch>='0' && nch<='9') {
if(e>INT_MAX/10 || e*10>INT_MAX-nch+'0')
e = INT_MAX;
else
e = e*10+nch-'0';
nch = get(ctx);
}
if((nch!=WEOF) && (nch < '0' || nch > '9')) unget(ctx);
e *= s;
if(e<0 && exp<INT_MIN-e) exp = INT_MIN;
else if(e>0 && exp>INT_MAX-e) exp = INT_MAX;
else exp += e;
} else {
if(nch != WEOF) unget(ctx);
if(found_sign) unget(ctx);
unget(ctx);
}
}
return fpnum(sign, exp, m, round);
}
#endif
/* Converts first 3 limbs to ULONGLONG */
/* Return FALSE on overflow */
static inline BOOL bnum_to_mant(struct bnum *b, ULONGLONG *m)
{
if(UI64_MAX / LIMB_MAX / LIMB_MAX < b->data[bnum_idx(b, b->e-1)]) return FALSE;
*m = (ULONGLONG)b->data[bnum_idx(b, b->e-1)] * LIMB_MAX * LIMB_MAX;
if(b->b == b->e-1) return TRUE;
if(UI64_MAX - *m < (ULONGLONG)b->data[bnum_idx(b, b->e-2)] * LIMB_MAX) return FALSE;
*m += (ULONGLONG)b->data[bnum_idx(b, b->e-2)] * LIMB_MAX;
if(b->b == b->e-2) return TRUE;
if(UI64_MAX - *m < b->data[bnum_idx(b, b->e-3)]) return FALSE;
*m += b->data[bnum_idx(b, b->e-3)];
return TRUE;
}
static struct fpnum fpnum_parse_bnum(wchar_t (*get)(void *ctx), void (*unget)(void *ctx),
void *ctx, pthreadlocinfo locinfo, BOOL ldouble, struct bnum *b)
{
#if _MSVCR_VER >= 140
const wchar_t _infinity[] = L"infinity";
const wchar_t _nan[] = L"nan";
const wchar_t *str_match = NULL;
int matched=0;
#endif
BOOL found_digit = FALSE, found_dp = FALSE, found_sign = FALSE;
int e2 = 0, dp=0, sign=1, off, limb_digits = 0, i;
enum fpmod round = FP_ROUND_ZERO;
wchar_t nch;
ULONGLONG m;
nch = get(ctx);
if(nch == '-') {
found_sign = TRUE;
sign = -1;
nch = get(ctx);
} else if(nch == '+') {
found_sign = TRUE;
nch = get(ctx);
}
#if _MSVCR_VER >= 140
if(nch == _infinity[0] || nch == _toupper(_infinity[0]))
str_match = _infinity;
if(nch == _nan[0] || nch == _toupper(_nan[0]))
str_match = _nan;
while(str_match && nch != WEOF &&
(nch == str_match[matched] || nch == _toupper(str_match[matched]))) {
nch = get(ctx);
matched++;
}
if(str_match) {
int keep = 0;
if(matched >= 8) keep = 8;
else if(matched >= 3) keep = 3;
if(nch != WEOF) unget(ctx);
for (; matched > keep; matched--) {
unget(ctx);
}
if(keep) {
if (str_match == _infinity)
return fpnum(sign, 0, 0, FP_VAL_INFINITY);
if (str_match == _nan)
return fpnum(sign, 0, 0, FP_VAL_NAN);
} else if(found_sign) {
unget(ctx);
}
return fpnum(0, 0, 0, 0);
}
if(nch == '0') {
found_digit = TRUE;
nch = get(ctx);
if(nch == 'x' || nch == 'X')
return fpnum_parse16(get, unget, ctx, sign, locinfo);
}
#endif
while(nch == '0') {
found_digit = TRUE;
nch = get(ctx);
}
b->b = 0;
b->e = 1;
b->data[0] = 0;
while(nch>='0' && nch<='9') {
found_digit = TRUE;
if(limb_digits == LIMB_DIGITS) {
if(bnum_idx(b, b->b-1) == bnum_idx(b, b->e)) break;
else {
b->b--;
b->data[bnum_idx(b, b->b)] = 0;
limb_digits = 0;
}
}
b->data[bnum_idx(b, b->b)] = b->data[bnum_idx(b, b->b)] * 10 + nch - '0';
limb_digits++;
nch = get(ctx);
dp++;
}
while(nch>='0' && nch<='9') {
if(nch != '0') b->data[bnum_idx(b, b->b)] |= 1;
nch = get(ctx);
dp++;
}
if(nch == *locinfo->lconv->decimal_point) {
found_dp = TRUE;
nch = get(ctx);
}
/* skip leading '0' */
if(nch=='0' && !limb_digits && !b->b) {
found_digit = TRUE;
while(nch == '0') {
nch = get(ctx);
dp--;
}
}
while(nch>='0' && nch<='9') {
found_digit = TRUE;
if(limb_digits == LIMB_DIGITS) {
if(bnum_idx(b, b->b-1) == bnum_idx(b, b->e)) break;
else {
b->b--;
b->data[bnum_idx(b, b->b)] = 0;
limb_digits = 0;
}
}
b->data[bnum_idx(b, b->b)] = b->data[bnum_idx(b, b->b)] * 10 + nch - '0';
limb_digits++;
nch = get(ctx);
}
while(nch>='0' && nch<='9') {
if(nch != '0') b->data[bnum_idx(b, b->b)] |= 1;
nch = get(ctx);
}
if(!found_digit) {
if(nch != WEOF) unget(ctx);
if(found_dp) unget(ctx);
if(found_sign) unget(ctx);
return fpnum(0, 0, 0, 0);
}
if(nch=='e' || nch=='E' || nch=='d' || nch=='D') {
int e=0, s=1;
nch = get(ctx);
if(nch == '-') {
found_sign = TRUE;
s = -1;
nch = get(ctx);
} else if(nch == '+') {
found_sign = TRUE;
nch = get(ctx);
} else {
found_sign = FALSE;
}
if(nch>='0' && nch<='9') {
while(nch>='0' && nch<='9') {
if(e>INT_MAX/10 || e*10>INT_MAX-nch+'0')
e = INT_MAX;
else
e = e*10+nch-'0';
nch = get(ctx);
}
if(nch != WEOF) unget(ctx);
e *= s;
if(e<0 && dp<INT_MIN-e) dp = INT_MIN;
else if(e>0 && dp>INT_MAX-e) dp = INT_MAX;
else dp += e;
} else {
if(nch != WEOF) unget(ctx);
if(found_sign) unget(ctx);
unget(ctx);
}
} else if(nch != WEOF) {
unget(ctx);
}
if(!b->data[bnum_idx(b, b->e-1)])
return fpnum(sign, 0, 0, 0);
/* Fill last limb with 0 if needed */
if(b->b+1 != b->e) {
for(; limb_digits != LIMB_DIGITS; limb_digits++)
b->data[bnum_idx(b, b->b)] *= 10;
}
for(; bnum_idx(b, b->b) < bnum_idx(b, b->e); b->b++) {
if(b->data[bnum_idx(b, b->b)]) break;
}
/* move decimal point to limb boundary */
if(limb_digits==dp && b->b==b->e-1)
return fpnum(sign, 0, b->data[bnum_idx(b, b->e-1)], FP_ROUND_ZERO);
off = (dp - limb_digits) % LIMB_DIGITS;
if(off < 0) off += LIMB_DIGITS;
if(off) bnum_mult(b, p10s[off]);
if(dp-1 > (ldouble ? DBL80_MAX_10_EXP : DBL_MAX_10_EXP))
return fpnum(sign, INT_MAX, 1, FP_ROUND_ZERO);
/* Count part of exponent stored in denormalized mantissa. */
/* Increase exponent range to handle subnormals. */
if(dp-1 < (ldouble ? DBL80_MIN_10_EXP : DBL_MIN_10_EXP-DBL_DIG-18))
return fpnum(sign, INT_MIN, 1, FP_ROUND_ZERO);
while(dp > 3*LIMB_DIGITS) {
if(bnum_rshift(b, 9)) dp -= LIMB_DIGITS;
e2 += 9;
}
while(dp <= 2*LIMB_DIGITS) {
if(bnum_lshift(b, 29)) dp += LIMB_DIGITS;
e2 -= 29;
}
/* Make sure most significant mantissa bit will be set */
while(b->data[bnum_idx(b, b->e-1)] <= 9) {
bnum_lshift(b, 1);
e2--;
}
while(!bnum_to_mant(b, &m)) {
bnum_rshift(b, 1);
e2++;
}
if(b->e-4 >= b->b && b->data[bnum_idx(b, b->e-4)]) {
if(b->data[bnum_idx(b, b->e-4)] > LIMB_MAX/2) round = FP_ROUND_UP;
else if(b->data[bnum_idx(b, b->e-4)] == LIMB_MAX/2) round = FP_ROUND_EVEN;
else round = FP_ROUND_DOWN;
}
if(round == FP_ROUND_ZERO || round == FP_ROUND_EVEN) {
for(i=b->e-5; i>=b->b; i--) {
if(!b->data[bnum_idx(b, b->b)]) continue;
if(round == FP_ROUND_EVEN) round = FP_ROUND_UP;
else round = FP_ROUND_DOWN;
}
}
return fpnum(sign, e2, m, round);
}
struct fpnum fpnum_parse(wchar_t (*get)(void *ctx), void (*unget)(void *ctx),
void *ctx, pthreadlocinfo locinfo, BOOL ldouble)
{
if(!ldouble) {
BYTE bnum_data[FIELD_OFFSET(struct bnum, data[BNUM_PREC64])];
struct bnum *b = (struct bnum*)bnum_data;
b->size = BNUM_PREC64;
return fpnum_parse_bnum(get, unget, ctx, locinfo, ldouble, b);
} else {
BYTE bnum_data[FIELD_OFFSET(struct bnum, data[BNUM_PREC80])];
struct bnum *b = (struct bnum*)bnum_data;
b->size = BNUM_PREC80;
return fpnum_parse_bnum(get, unget, ctx, locinfo, ldouble, b);
}
}
static wchar_t strtod_str_get(void *ctx)
{
const char **p = ctx;
if (!**p) return WEOF;
return *(*p)++;
}
static void strtod_str_unget(void *ctx)
{
const char **p = ctx;
(*p)--;
}
static inline double strtod_helper(const char *str, char **end, _locale_t locale, int *perr)
{
pthreadlocinfo locinfo;
const char *beg, *p;
struct fpnum fp;
double ret;
int err;
if (perr) *perr = 0;
#if _MSVCR_VER == 0
else *_errno() = 0;
#endif
if (!MSVCRT_CHECK_PMT(str != NULL)) {
if (end) *end = NULL;
return 0;
}
if (!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
p = str;
while(_isspace_l((unsigned char)*p, locale))
p++;
beg = p;
fp = fpnum_parse(strtod_str_get, strtod_str_unget, &p, locinfo, FALSE);
if (end) *end = (p == beg ? (char*)str : (char*)p);
err = fpnum_double(&fp, &ret);
if (perr) *perr = err;
else if(err) *_errno() = err;
return ret;
}
/*********************************************************************
* _strtod_l (MSVCRT.@)
*/
double CDECL _strtod_l(const char *str, char **end, _locale_t locale)
{
return strtod_helper(str, end, locale, NULL);
}
/*********************************************************************
* strtod (MSVCRT.@)
*/
double CDECL strtod( const char *str, char **end )
{
return _strtod_l( str, end, NULL );
}
#if _MSVCR_VER>=120
/*********************************************************************
* strtof_l (MSVCR120.@)
*/
float CDECL _strtof_l( const char *str, char **end, _locale_t locale )
{
return _strtod_l(str, end, locale);
}
/*********************************************************************
* strtof (MSVCR120.@)
*/
float CDECL strtof( const char *str, char **end )
{
return _strtof_l(str, end, NULL);
}
#endif /* _MSVCR_VER>=120 */
/*********************************************************************
* atof (MSVCRT.@)
*/
double CDECL atof( const char *str )
{
return _strtod_l(str, NULL, NULL);
}
/*********************************************************************
* _atof_l (MSVCRT.@)
*/
double CDECL _atof_l( const char *str, _locale_t locale)
{
return _strtod_l(str, NULL, locale);
}
/*********************************************************************
* _atoflt_l (MSVCRT.@)
*/
int CDECL _atoflt_l(_CRT_FLOAT *value, char *str, _locale_t locale)
{
double d;
int err;
d = strtod_helper(str, NULL, locale, &err);
value->f = d;
if(isinf(value->f))
return _OVERFLOW;
if((d!=0 || err) && value->f>-FLT_MIN && value->f<FLT_MIN)
return _UNDERFLOW;
return 0;
}
/*********************************************************************
* _atoflt (MSVCR100.@)
*/
int CDECL _atoflt(_CRT_FLOAT *value, char *str)
{
return _atoflt_l(value, str, NULL);
}
/*********************************************************************
* _atodbl_l (MSVCRT.@)
*/
int CDECL _atodbl_l(_CRT_DOUBLE *value, char *str, _locale_t locale)
{
int err;
value->x = strtod_helper(str, NULL, locale, &err);
if(isinf(value->x))
return _OVERFLOW;
if((value->x!=0 || err) && value->x>-DBL_MIN && value->x<DBL_MIN)
return _UNDERFLOW;
return 0;
}
/*********************************************************************
* _atodbl (MSVCRT.@)
*/
int CDECL _atodbl(_CRT_DOUBLE *value, char *str)
{
return _atodbl_l(value, str, NULL);
}
/*********************************************************************
* _strcoll_l (MSVCRT.@)
*/
int CDECL _strcoll_l( const char* str1, const char* str2, _locale_t locale )
{
pthreadlocinfo locinfo;
if(!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
if(!locinfo->lc_handle[LC_COLLATE])
return strcmp(str1, str2);
return CompareStringA(locinfo->lc_handle[LC_COLLATE], 0, str1, -1, str2, -1)-CSTR_EQUAL;
}
/*********************************************************************
* strcoll (MSVCRT.@)
*/
int CDECL strcoll( const char* str1, const char* str2 )
{
return _strcoll_l(str1, str2, NULL);
}
/*********************************************************************
* _stricoll_l (MSVCRT.@)
*/
int CDECL _stricoll_l( const char* str1, const char* str2, _locale_t locale )
{
pthreadlocinfo locinfo;
if(!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
if(!locinfo->lc_handle[LC_COLLATE])
return _stricmp(str1, str2);
return CompareStringA(locinfo->lc_handle[LC_COLLATE], NORM_IGNORECASE,
str1, -1, str2, -1)-CSTR_EQUAL;
}
/*********************************************************************
* _stricoll (MSVCRT.@)
*/
int CDECL _stricoll( const char* str1, const char* str2 )
{
return _stricoll_l(str1, str2, NULL);
}
/*********************************************************************
* _strncoll_l (MSVCRT.@)
*/
int CDECL _strncoll_l( const char* str1, const char* str2, size_t count, _locale_t locale )
{
pthreadlocinfo locinfo;
if(!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
if(!locinfo->lc_handle[LC_COLLATE])
return strncmp(str1, str2, count);
return CompareStringA(locinfo->lc_handle[LC_COLLATE], 0,
str1, strnlen(str1, count),
str2, strnlen(str2, count))-CSTR_EQUAL;
}
/*********************************************************************
* _strncoll (MSVCRT.@)
*/
int CDECL _strncoll( const char* str1, const char* str2, size_t count )
{
return _strncoll_l(str1, str2, count, NULL);
}
/*********************************************************************
* _strnicoll_l (MSVCRT.@)
*/
int CDECL _strnicoll_l( const char* str1, const char* str2, size_t count, _locale_t locale )
{
pthreadlocinfo locinfo;
if(!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
if(!locinfo->lc_handle[LC_COLLATE])
return _strnicmp(str1, str2, count);
return CompareStringA(locinfo->lc_handle[LC_COLLATE], NORM_IGNORECASE,
str1, strnlen(str1, count),
str2, strnlen(str2, count))-CSTR_EQUAL;
}
/*********************************************************************
* _strnicoll (MSVCRT.@)
*/
int CDECL _strnicoll( const char* str1, const char* str2, size_t count )
{
return _strnicoll_l(str1, str2, count, NULL);
}
/*********************************************************************
* strncpy (MSVCRT.@)
*/
char* __cdecl strncpy(char *dst, const char *src, size_t len)
{
size_t i;
for(i=0; i<len; i++)
if((dst[i] = src[i]) == '\0') break;
while (i < len) dst[i++] = 0;
return dst;
}
/*********************************************************************
* strcpy (MSVCRT.@)
*/
char* CDECL strcpy(char *dst, const char *src)
{
char *ret = dst;
while ((*dst++ = *src++));
return ret;
}
/*********************************************************************
* strcpy_s (MSVCRT.@)
*/
int CDECL strcpy_s( char* dst, size_t elem, const char* src )
{
size_t i;
if(!elem) return EINVAL;
if(!dst) return EINVAL;
if(!src)
{
dst[0] = '\0';
return EINVAL;
}
for(i = 0; i < elem; i++)
{
if((dst[i] = src[i]) == '\0') return 0;
}
dst[0] = '\0';
return ERANGE;
}
/*********************************************************************
* strcat_s (MSVCRT.@)
*/
int CDECL strcat_s( char* dst, size_t elem, const char* src )
{
size_t i, j;
if(!dst) return EINVAL;
if(elem == 0) return EINVAL;
if(!src)
{
dst[0] = '\0';
return EINVAL;
}
for(i = 0; i < elem; i++)
{
if(dst[i] == '\0')
{
for(j = 0; (j + i) < elem; j++)
{
if((dst[j + i] = src[j]) == '\0') return 0;
}
}
}
/* Set the first element to 0, not the first element after the skipped part */
dst[0] = '\0';
return ERANGE;
}
/*********************************************************************
* strcat (MSVCRT.@)
*/
char* __cdecl strcat( char *dst, const char *src )
{
char *d = dst;
while (*d) d++;
while ((*d++ = *src++));
return dst;
}
/*********************************************************************
* strncat_s (MSVCRT.@)
*/
int CDECL strncat_s( char* dst, size_t elem, const char* src, size_t count )
{
size_t i, j;
if (!MSVCRT_CHECK_PMT(dst != 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(elem != 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(src != 0))
{
dst[0] = '\0';
return EINVAL;
}
for(i = 0; i < elem; i++)
{
if(dst[i] == '\0')
{
for(j = 0; (j + i) < elem; j++)
{
if(count == _TRUNCATE && j + i == elem - 1)
{
dst[j + i] = '\0';
return STRUNCATE;
}
if(j == count || (dst[j + i] = src[j]) == '\0')
{
dst[j + i] = '\0';
return 0;
}
}
}
}
/* Set the first element to 0, not the first element after the skipped part */
dst[0] = '\0';
return ERANGE;
}
/*********************************************************************
* strncat (MSVCRT.@)
*/
char* __cdecl strncat(char *dst, const char *src, size_t len)
{
char *d = dst;
while (*d) d++;
for ( ; len && *src; d++, src++, len--) *d = *src;
*d = 0;
return dst;
}
/*********************************************************************
* _strxfrm_l (MSVCRT.@)
*/
size_t CDECL _strxfrm_l( char *dest, const char *src,
size_t len, _locale_t locale )
{
pthreadlocinfo locinfo;
int ret;
if(!MSVCRT_CHECK_PMT(src)) return INT_MAX;
if(!MSVCRT_CHECK_PMT(dest || !len)) return INT_MAX;
if(len > INT_MAX) {
FIXME("len > INT_MAX not supported\n");
len = INT_MAX;
}
if(!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
if(!locinfo->lc_handle[LC_COLLATE]) {
strncpy(dest, src, len);
return strlen(src);
}
ret = LCMapStringA(locinfo->lc_handle[LC_COLLATE],
LCMAP_SORTKEY, src, -1, NULL, 0);
if(!ret) {
if(len) dest[0] = 0;
*_errno() = EILSEQ;
return INT_MAX;
}
if(!len) return ret-1;
if(ret > len) {
dest[0] = 0;
*_errno() = ERANGE;
return ret-1;
}
return LCMapStringA(locinfo->lc_handle[LC_COLLATE],
LCMAP_SORTKEY, src, -1, dest, len) - 1;
}
/*********************************************************************
* strxfrm (MSVCRT.@)
*/
size_t CDECL strxfrm( char *dest, const char *src, size_t len )
{
return _strxfrm_l(dest, src, len, NULL);
}
/********************************************************************
* __STRINGTOLD_L (MSVCR80.@)
*/
int CDECL __STRINGTOLD_L( MSVCRT__LDOUBLE *value, char **endptr,
const char *str, int flags, _locale_t locale )
{
pthreadlocinfo locinfo;
const char *beg, *p;
int err, ret = 0;
struct fpnum fp;
if (flags) FIXME("flags not supported: %x\n", flags);
if (!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
p = str;
while (_isspace_l((unsigned char)*p, locale))
p++;
beg = p;
fp = fpnum_parse(strtod_str_get, strtod_str_unget, &p, locinfo, TRUE);
if (endptr) *endptr = (p == beg ? (char*)str : (char*)p);
if (p == beg) ret = 4;
err = fpnum_ldouble(&fp, value);
if (err) ret = (value->x80[2] & 0x7fff ? 2 : 1);
return ret;
}
/********************************************************************
* __STRINGTOLD (MSVCRT.@)
*/
int CDECL __STRINGTOLD( MSVCRT__LDOUBLE *value, char **endptr, const char *str, int flags )
{
return __STRINGTOLD_L( value, endptr, str, flags, NULL );
}
/********************************************************************
* _atoldbl_l (MSVCRT.@)
*/
int CDECL _atoldbl_l( MSVCRT__LDOUBLE *value, char *str, _locale_t locale )
{
char *endptr;
switch(__STRINGTOLD_L( value, &endptr, str, 0, locale ))
{
case 1: return _UNDERFLOW;
case 2: return _OVERFLOW;
default: return 0;
}
}
/********************************************************************
* _atoldbl (MSVCRT.@)
*/
int CDECL _atoldbl(_LDOUBLE *value, char *str)
{
return _atoldbl_l( (MSVCRT__LDOUBLE*)value, str, NULL );
}
/*********************************************************************
* strlen (MSVCRT.@)
*/
size_t __cdecl strlen(const char *str)
{
const char *s = str;
while (*s) s++;
return s - str;
}
/******************************************************************
* strnlen (MSVCRT.@)
*/
size_t CDECL strnlen(const char *s, size_t maxlen)
{
size_t i;
for(i=0; i<maxlen; i++)
if(!s[i]) break;
return i;
}
/*********************************************************************
* _strtoi64_l (MSVCRT.@)
*
* FIXME: locale parameter is ignored
*/
__int64 CDECL _strtoi64_l(const char *nptr, char **endptr, int base, _locale_t locale)
{
const char *p = nptr;
BOOL negative = FALSE;
BOOL got_digit = FALSE;
__int64 ret = 0;
TRACE("(%s %p %d %p)\n", debugstr_a(nptr), endptr, base, locale);
if (!MSVCRT_CHECK_PMT(nptr != NULL)) return 0;
if (!MSVCRT_CHECK_PMT(base == 0 || base >= 2)) return 0;
if (!MSVCRT_CHECK_PMT(base <= 36)) return 0;
while(_isspace_l((unsigned char)*nptr, locale)) nptr++;
if(*nptr == '-') {
negative = TRUE;
nptr++;
} else if(*nptr == '+')
nptr++;
if((base==0 || base==16) && *nptr=='0' && _tolower_l(*(nptr+1), locale)=='x') {
base = 16;
nptr += 2;
}
if(base == 0) {
if(*nptr=='0')
base = 8;
else
base = 10;
}
while(*nptr) {
char cur = _tolower_l(*nptr, locale);
int v;
if(cur>='0' && cur<='9') {
if(cur >= '0'+base)
break;
v = cur-'0';
} else {
if(cur<'a' || cur>='a'+base-10)
break;
v = cur-'a'+10;
}
got_digit = TRUE;
if(negative)
v = -v;
nptr++;
if(!negative && (ret>I64_MAX/base || ret*base>I64_MAX-v)) {
ret = I64_MAX;
*_errno() = ERANGE;
} else if(negative && (ret<I64_MIN/base || ret*base<I64_MIN-v)) {
ret = I64_MIN;
*_errno() = ERANGE;
} else
ret = ret*base + v;
}
if(endptr)
*endptr = (char*)(got_digit ? nptr : p);
return ret;
}
/*********************************************************************
* _strtoi64 (MSVCRT.@)
*/
__int64 CDECL _strtoi64(const char *nptr, char **endptr, int base)
{
return _strtoi64_l(nptr, endptr, base, NULL);
}
/*********************************************************************
* _atoi_l (MSVCRT.@)
*/
int __cdecl _atoi_l(const char *str, _locale_t locale)
{
__int64 ret = _strtoi64_l(str, NULL, 10, locale);
if(ret > INT_MAX) {
ret = INT_MAX;
*_errno() = ERANGE;
} else if(ret < INT_MIN) {
ret = INT_MIN;
*_errno() = ERANGE;
}
return ret;
}
/*********************************************************************
* atoi (MSVCRT.@)
*/
#if _MSVCR_VER == 0
int __cdecl atoi(const char *str)
{
BOOL minus = FALSE;
int ret = 0;
if(!str)
return 0;
while(_isspace_l((unsigned char)*str, NULL)) str++;
if(*str == '+') {
str++;
}else if(*str == '-') {
minus = TRUE;
str++;
}
while(*str>='0' && *str<='9') {
ret = ret*10+*str-'0';
str++;
}
return minus ? -ret : ret;
}
#else
int CDECL atoi(const char *str)
{
return _atoi_l(str, NULL);
}
#endif
/******************************************************************
* _atoi64_l (MSVCRT.@)
*/
__int64 CDECL _atoi64_l(const char *str, _locale_t locale)
{
return _strtoi64_l(str, NULL, 10, locale);
}
/******************************************************************
* _atoi64 (MSVCRT.@)
*/
__int64 CDECL _atoi64(const char *str)
{
return _strtoi64_l(str, NULL, 10, NULL);
}
/******************************************************************
* _atol_l (MSVCRT.@)
*/
__msvcrt_long CDECL _atol_l(const char *str, _locale_t locale)
{
__int64 ret = _strtoi64_l(str, NULL, 10, locale);
if(ret > LONG_MAX) {
ret = LONG_MAX;
*_errno() = ERANGE;
} else if(ret < LONG_MIN) {
ret = LONG_MIN;
*_errno() = ERANGE;
}
return ret;
}
/******************************************************************
* atol (MSVCRT.@)
*/
__msvcrt_long CDECL atol(const char *str)
{
#if _MSVCR_VER == 0
return atoi(str);
#else
return _atol_l(str, NULL);
#endif
}
#if _MSVCR_VER>=120
/******************************************************************
* _atoll_l (MSVCR120.@)
*/
__int64 CDECL _atoll_l(const char* str, _locale_t locale)
{
return _strtoi64_l(str, NULL, 10, locale);
}
/******************************************************************
* atoll (MSVCR120.@)
*/
__int64 CDECL atoll(const char* str)
{
return _atoll_l(str, NULL);
}
#endif /* _MSVCR_VER>=120 */
/******************************************************************
* _strtol_l (MSVCRT.@)
*/
__msvcrt_long CDECL _strtol_l(const char* nptr,
char** end, int base, _locale_t locale)
{
__int64 ret = _strtoi64_l(nptr, end, base, locale);
if(ret > LONG_MAX) {
ret = LONG_MAX;
*_errno() = ERANGE;
} else if(ret < LONG_MIN) {
ret = LONG_MIN;
*_errno() = ERANGE;
}
return ret;
}
/******************************************************************
* strtol (MSVCRT.@)
*/
__msvcrt_long CDECL strtol(const char* nptr, char** end, int base)
{
return _strtol_l(nptr, end, base, NULL);
}
/******************************************************************
* _strtoul_l (MSVCRT.@)
*/
__msvcrt_ulong CDECL _strtoul_l(const char* nptr, char** end, int base, _locale_t locale)
{
__int64 ret = _strtoi64_l(nptr, end, base, locale);
if(ret > ULONG_MAX) {
ret = ULONG_MAX;
*_errno() = ERANGE;
}else if(ret < -(__int64)ULONG_MAX) {
ret = 1;
*_errno() = ERANGE;
}
return ret;
}
/******************************************************************
* strtoul (MSVCRT.@)
*/
__msvcrt_ulong CDECL strtoul(const char* nptr, char** end, int base)
{
return _strtoul_l(nptr, end, base, NULL);
}
/*********************************************************************
* _strtoui64_l (MSVCRT.@)
*
* FIXME: locale parameter is ignored
*/
unsigned __int64 CDECL _strtoui64_l(const char *nptr, char **endptr, int base, _locale_t locale)
{
const char *p = nptr;
BOOL negative = FALSE;
BOOL got_digit = FALSE;
unsigned __int64 ret = 0;
TRACE("(%s %p %d %p)\n", debugstr_a(nptr), endptr, base, locale);
if (!MSVCRT_CHECK_PMT(nptr != NULL)) return 0;
if (!MSVCRT_CHECK_PMT(base == 0 || base >= 2)) return 0;
if (!MSVCRT_CHECK_PMT(base <= 36)) return 0;
while(_isspace_l((unsigned char)*nptr, locale)) nptr++;
if(*nptr == '-') {
negative = TRUE;
nptr++;
} else if(*nptr == '+')
nptr++;
if((base==0 || base==16) && *nptr=='0' && _tolower_l(*(nptr+1), locale)=='x') {
base = 16;
nptr += 2;
}
if(base == 0) {
if(*nptr=='0')
base = 8;
else
base = 10;
}
while(*nptr) {
char cur = _tolower_l(*nptr, locale);
int v;
if(cur>='0' && cur<='9') {
if(cur >= '0'+base)
break;
v = *nptr-'0';
} else {
if(cur<'a' || cur>='a'+base-10)
break;
v = cur-'a'+10;
}
got_digit = TRUE;
nptr++;
if(ret>UI64_MAX/base || ret*base>UI64_MAX-v) {
ret = UI64_MAX;
*_errno() = ERANGE;
} else
ret = ret*base + v;
}
if(endptr)
*endptr = (char*)(got_digit ? nptr : p);
return negative ? -ret : ret;
}
/*********************************************************************
* _strtoui64 (MSVCRT.@)
*/
unsigned __int64 CDECL _strtoui64(const char *nptr, char **endptr, int base)
{
return _strtoui64_l(nptr, endptr, base, NULL);
}
static int ltoa_helper(__msvcrt_long value, char *str, size_t size, int radix)
{
__msvcrt_ulong val;
unsigned int digit;
BOOL is_negative;
char buffer[33], *pos;
size_t len;
if (value < 0 && radix == 10)
{
is_negative = TRUE;
val = -value;
}
else
{
is_negative = FALSE;
val = value;
}
pos = buffer + 32;
*pos = '\0';
do
{
digit = val % radix;
val /= radix;
if (digit < 10)
*--pos = '0' + digit;
else
*--pos = 'a' + digit - 10;
}
while (val != 0);
if (is_negative)
*--pos = '-';
len = buffer + 33 - pos;
if (len > size)
{
size_t i;
char *p = str;
/* Copy the temporary buffer backwards up to the available number of
* characters. Don't copy the negative sign if present. */
if (is_negative)
{
p++;
size--;
}
for (pos = buffer + 31, i = 0; i < size; i++)
*p++ = *pos--;
str[0] = '\0';
MSVCRT_INVALID_PMT("str[size] is too small", ERANGE);
return ERANGE;
}
memcpy(str, pos, len);
return 0;
}
/*********************************************************************
* _ltoa_s (MSVCRT.@)
*/
int CDECL _ltoa_s(__msvcrt_long value, char *str, size_t size, int radix)
{
if (!MSVCRT_CHECK_PMT(str != NULL)) return EINVAL;
if (!MSVCRT_CHECK_PMT(size > 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
{
str[0] = '\0';
return EINVAL;
}
return ltoa_helper(value, str, size, radix);
}
/*********************************************************************
* _ltow_s (MSVCRT.@)
*/
int CDECL _ltow_s(__msvcrt_long value, wchar_t *str, size_t size, int radix)
{
__msvcrt_ulong val;
unsigned int digit;
BOOL is_negative;
wchar_t buffer[33], *pos;
size_t len;
if (!MSVCRT_CHECK_PMT(str != NULL)) return EINVAL;
if (!MSVCRT_CHECK_PMT(size > 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
{
str[0] = '\0';
return EINVAL;
}
if (value < 0 && radix == 10)
{
is_negative = TRUE;
val = -value;
}
else
{
is_negative = FALSE;
val = value;
}
pos = buffer + 32;
*pos = '\0';
do
{
digit = val % radix;
val /= radix;
if (digit < 10)
*--pos = '0' + digit;
else
*--pos = 'a' + digit - 10;
}
while (val != 0);
if (is_negative)
*--pos = '-';
len = buffer + 33 - pos;
if (len > size)
{
size_t i;
wchar_t *p = str;
/* Copy the temporary buffer backwards up to the available number of
* characters. Don't copy the negative sign if present. */
if (is_negative)
{
p++;
size--;
}
for (pos = buffer + 31, i = 0; i < size; i++)
*p++ = *pos--;
str[0] = '\0';
MSVCRT_INVALID_PMT("str[size] is too small", ERANGE);
return ERANGE;
}
memcpy(str, pos, len * sizeof(wchar_t));
return 0;
}
/*********************************************************************
* _itoa_s (MSVCRT.@)
*/
int CDECL _itoa_s(int value, char *str, size_t size, int radix)
{
return _ltoa_s(value, str, size, radix);
}
/*********************************************************************
* _itoa (MSVCRT.@)
*/
char* CDECL _itoa(int value, char *str, int radix)
{
return ltoa_helper(value, str, SIZE_MAX, radix) ? NULL : str;
}
/*********************************************************************
* _itow_s (MSVCRT.@)
*/
int CDECL _itow_s(int value, wchar_t *str, size_t size, int radix)
{
return _ltow_s(value, str, size, radix);
}
/*********************************************************************
* _ui64toa_s (MSVCRT.@)
*/
int CDECL _ui64toa_s(unsigned __int64 value, char *str,
size_t size, int radix)
{
char buffer[65], *pos;
int digit;
if (!MSVCRT_CHECK_PMT(str != NULL)) return EINVAL;
if (!MSVCRT_CHECK_PMT(size > 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
{
str[0] = '\0';
return EINVAL;
}
pos = buffer+64;
*pos = '\0';
do {
digit = value%radix;
value /= radix;
if(digit < 10)
*--pos = '0'+digit;
else
*--pos = 'a'+digit-10;
}while(value != 0);
if(buffer-pos+65 > size) {
MSVCRT_INVALID_PMT("str[size] is too small", EINVAL);
return EINVAL;
}
memcpy(str, pos, buffer-pos+65);
return 0;
}
/*********************************************************************
* _ui64tow_s (MSVCRT.@)
*/
int CDECL _ui64tow_s( unsigned __int64 value, wchar_t *str,
size_t size, int radix )
{
wchar_t buffer[65], *pos;
int digit;
if (!MSVCRT_CHECK_PMT(str != NULL)) return EINVAL;
if (!MSVCRT_CHECK_PMT(size > 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
{
str[0] = '\0';
return EINVAL;
}
pos = &buffer[64];
*pos = '\0';
do {
digit = value % radix;
value = value / radix;
if (digit < 10)
*--pos = '0' + digit;
else
*--pos = 'a' + digit - 10;
} while (value != 0);
if(buffer-pos+65 > size) {
MSVCRT_INVALID_PMT("str[size] is too small", EINVAL);
return EINVAL;
}
memcpy(str, pos, (buffer-pos+65)*sizeof(wchar_t));
return 0;
}
/*********************************************************************
* _ultoa_s (MSVCRT.@)
*/
int CDECL _ultoa_s(__msvcrt_ulong value, char *str, size_t size, int radix)
{
__msvcrt_ulong digit;
char buffer[33], *pos;
size_t len;
if (!str || !size || radix < 2 || radix > 36)
{
if (str && size)
str[0] = '\0';
*_errno() = EINVAL;
return EINVAL;
}
pos = buffer + 32;
*pos = '\0';
do
{
digit = value % radix;
value /= radix;
if (digit < 10)
*--pos = '0' + digit;
else
*--pos = 'a' + digit - 10;
}
while (value != 0);
len = buffer + 33 - pos;
if (len > size)
{
size_t i;
char *p = str;
/* Copy the temporary buffer backwards up to the available number of
* characters. */
for (pos = buffer + 31, i = 0; i < size; i++)
*p++ = *pos--;
str[0] = '\0';
*_errno() = ERANGE;
return ERANGE;
}
memcpy(str, pos, len);
return 0;
}
/*********************************************************************
* _ultow_s (MSVCRT.@)
*/
int CDECL _ultow_s(__msvcrt_ulong value, wchar_t *str, size_t size, int radix)
{
__msvcrt_ulong digit;
WCHAR buffer[33], *pos;
size_t len;
if (!str || !size || radix < 2 || radix > 36)
{
if (str && size)
str[0] = '\0';
*_errno() = EINVAL;
return EINVAL;
}
pos = buffer + 32;
*pos = '\0';
do
{
digit = value % radix;
value /= radix;
if (digit < 10)
*--pos = '0' + digit;
else
*--pos = 'a' + digit - 10;
}
while (value != 0);
len = buffer + 33 - pos;
if (len > size)
{
size_t i;
WCHAR *p = str;
/* Copy the temporary buffer backwards up to the available number of
* characters. */
for (pos = buffer + 31, i = 0; i < size; i++)
*p++ = *pos--;
str[0] = '\0';
*_errno() = ERANGE;
return ERANGE;
}
memcpy(str, pos, len * sizeof(wchar_t));
return 0;
}
/*********************************************************************
* _i64toa_s (MSVCRT.@)
*/
int CDECL _i64toa_s(__int64 value, char *str, size_t size, int radix)
{
unsigned __int64 val;
unsigned int digit;
BOOL is_negative;
char buffer[65], *pos;
size_t len;
if (!MSVCRT_CHECK_PMT(str != NULL)) return EINVAL;
if (!MSVCRT_CHECK_PMT(size > 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
{
str[0] = '\0';
return EINVAL;
}
if (value < 0 && radix == 10)
{
is_negative = TRUE;
val = -value;
}
else
{
is_negative = FALSE;
val = value;
}
pos = buffer + 64;
*pos = '\0';
do
{
digit = val % radix;
val /= radix;
if (digit < 10)
*--pos = '0' + digit;
else
*--pos = 'a' + digit - 10;
}
while (val != 0);
if (is_negative)
*--pos = '-';
len = buffer + 65 - pos;
if (len > size)
{
size_t i;
char *p = str;
/* Copy the temporary buffer backwards up to the available number of
* characters. Don't copy the negative sign if present. */
if (is_negative)
{
p++;
size--;
}
for (pos = buffer + 63, i = 0; i < size; i++)
*p++ = *pos--;
str[0] = '\0';
MSVCRT_INVALID_PMT("str[size] is too small", ERANGE);
return ERANGE;
}
memcpy(str, pos, len);
return 0;
}
/*********************************************************************
* _i64tow_s (MSVCRT.@)
*/
int CDECL _i64tow_s(__int64 value, wchar_t *str, size_t size, int radix)
{
unsigned __int64 val;
unsigned int digit;
BOOL is_negative;
wchar_t buffer[65], *pos;
size_t len;
if (!MSVCRT_CHECK_PMT(str != NULL)) return EINVAL;
if (!MSVCRT_CHECK_PMT(size > 0)) return EINVAL;
if (!MSVCRT_CHECK_PMT(radix >= 2 && radix <= 36))
{
str[0] = '\0';
return EINVAL;
}
if (value < 0 && radix == 10)
{
is_negative = TRUE;
val = -value;
}
else
{
is_negative = FALSE;
val = value;
}
pos = buffer + 64;
*pos = '\0';
do
{
digit = val % radix;
val /= radix;
if (digit < 10)
*--pos = '0' + digit;
else
*--pos = 'a' + digit - 10;
}
while (val != 0);
if (is_negative)
*--pos = '-';
len = buffer + 65 - pos;
if (len > size)
{
size_t i;
wchar_t *p = str;
/* Copy the temporary buffer backwards up to the available number of
* characters. Don't copy the negative sign if present. */
if (is_negative)
{
p++;
size--;
}
for (pos = buffer + 63, i = 0; i < size; i++)
*p++ = *pos--;
str[0] = '\0';
MSVCRT_INVALID_PMT("str[size] is too small", ERANGE);
return ERANGE;
}
memcpy(str, pos, len * sizeof(wchar_t));
return 0;
}
#define I10_OUTPUT_MAX_PREC 21
/* Internal structure used by $I10_OUTPUT */
struct _I10_OUTPUT_DATA {
short pos;
char sign;
BYTE len;
char str[I10_OUTPUT_MAX_PREC+1]; /* add space for '\0' */
};
/*********************************************************************
* $I10_OUTPUT (MSVCRT.@)
* ld80 - long double (Intel 80 bit FP in 12 bytes) to be printed to data
* prec - precision of part, we're interested in
* flag - 0 for first prec digits, 1 for fractional part
* data - data to be populated
*
* return value
* 0 if given double is NaN or INF
* 1 otherwise
*
* FIXME
* Native sets last byte of data->str to '0' or '9', I don't know what
* it means. Current implementation sets it always to '0'.
*/
int CDECL I10_OUTPUT(MSVCRT__LDOUBLE ld80, int prec, int flag, struct _I10_OUTPUT_DATA *data)
{
struct fpnum num;
double d;
char format[8];
char buf[I10_OUTPUT_MAX_PREC+9]; /* 9 = strlen("0.e+0000") + '\0' */
char *p;
if ((ld80.x80[2] & 0x7fff) == 0x7fff)
{
if (ld80.x80[0] == 0 && ld80.x80[1] == 0x80000000)
strcpy( data->str, "1#INF" );
else
strcpy( data->str, (ld80.x80[1] & 0x40000000) ? "1#QNAN" : "1#SNAN" );
data->pos = 1;
data->sign = (ld80.x80[2] & 0x8000) ? '-' : ' ';
data->len = strlen(data->str);
return 0;
}
num.sign = (ld80.x80[2] & 0x8000) ? -1 : 1;
num.exp = (ld80.x80[2] & 0x7fff) - 0x3fff - 63;
num.m = ld80.x80[0] | ((ULONGLONG)ld80.x80[1] << 32);
num.mod = FP_ROUND_EVEN;
fpnum_double( &num, &d );
TRACE("(%lf %d %x %p)\n", d, prec, flag, data);
if(d<0) {
data->sign = '-';
d = -d;
} else
data->sign = ' ';
if(flag&1) {
int exp = 1 + floor(log10(d));
prec += exp;
if(exp < 0)
prec--;
}
prec--;
if(prec+1 > I10_OUTPUT_MAX_PREC)
prec = I10_OUTPUT_MAX_PREC-1;
else if(prec < 0) {
d = 0.0;
prec = 0;
}
sprintf(format, "%%.%dle", prec);
sprintf(buf, format, d);
buf[1] = buf[0];
data->pos = atoi(buf+prec+3);
if(buf[1] != '0')
data->pos++;
for(p = buf+prec+1; p>buf+1 && *p=='0'; p--);
data->len = p-buf;
memcpy(data->str, buf+1, data->len);
data->str[data->len] = '\0';
if(buf[1]!='0' && prec-data->len+1>0)
memcpy(data->str+data->len+1, buf+data->len+1, prec-data->len+1);
return 1;
}
#undef I10_OUTPUT_MAX_PREC
/*********************************************************************
* memcmp (MSVCRT.@)
*/
int __cdecl memcmp(const void *ptr1, const void *ptr2, size_t n)
{
const unsigned char *p1, *p2;
for (p1 = ptr1, p2 = ptr2; n; n--, p1++, p2++)
{
if (*p1 < *p2) return -1;
if (*p1 > *p2) return 1;
}
return 0;
}
#if defined(__i386__) || defined(__x86_64__)
#ifdef __i386__
#define DEST_REG "%edi"
#define SRC_REG "%esi"
#define LEN_REG "%ecx"
#define TMP_REG "%edx"
#define MEMMOVE_INIT \
"pushl " SRC_REG "\n\t" \
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t") \
"pushl " DEST_REG "\n\t" \
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t") \
"movl 12(%esp), " DEST_REG "\n\t" \
"movl 16(%esp), " SRC_REG "\n\t" \
"movl 20(%esp), " LEN_REG "\n\t"
#define MEMMOVE_CLEANUP \
"movl 12(%esp), %eax\n\t" \
"popl " DEST_REG "\n\t" \
__ASM_CFI(".cfi_adjust_cfa_offset -4\n\t") \
"popl " SRC_REG "\n\t" \
__ASM_CFI(".cfi_adjust_cfa_offset -4\n\t")
#else
#define DEST_REG "%rdi"
#define SRC_REG "%rsi"
#define LEN_REG "%r8"
#define TMP_REG "%r9"
#define MEMMOVE_INIT \
"pushq " SRC_REG "\n\t" \
__ASM_CFI(".cfi_adjust_cfa_offset 8\n\t") \
"pushq " DEST_REG "\n\t" \
__ASM_CFI(".cfi_adjust_cfa_offset 8\n\t") \
"movq %rcx, " DEST_REG "\n\t" \
"movq %rdx, " SRC_REG "\n\t"
#define MEMMOVE_CLEANUP \
"movq %rcx, %rax\n\t" \
"popq " DEST_REG "\n\t" \
__ASM_CFI(".cfi_adjust_cfa_offset -8\n\t") \
"popq " SRC_REG "\n\t" \
__ASM_CFI(".cfi_adjust_cfa_offset -8\n\t")
#endif
void * __cdecl sse2_memmove(void *dst, const void *src, size_t n);
__ASM_GLOBAL_FUNC( sse2_memmove,
MEMMOVE_INIT
"mov " DEST_REG ", " TMP_REG "\n\t" /* check copying direction */
"sub " SRC_REG ", " TMP_REG "\n\t"
"cmp " LEN_REG ", " TMP_REG "\n\t"
"jb copy_bwd\n\t"
/* copy forwards */
"cmp $4, " LEN_REG "\n\t" /* 4-bytes align */
"jb copy_fwd3\n\t"
"mov " DEST_REG ", " TMP_REG "\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc 1f\n\t"
"movsb\n\t"
"dec " LEN_REG "\n\t"
"inc " TMP_REG "\n\t"
"1:\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc 1f\n\t"
"movsw\n\t"
"sub $2, " LEN_REG "\n\t"
"inc " TMP_REG "\n\t"
"1:\n\t" /* 16-bytes align */
"cmp $16, " LEN_REG "\n\t"
"jb copy_fwd15\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc 1f\n\t"
"movsl\n\t"
"sub $4, " LEN_REG "\n\t"
"inc " TMP_REG "\n\t"
"1:\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc 1f\n\t"
"movsl\n\t"
"movsl\n\t"
"sub $8, " LEN_REG "\n\t"
"1:\n\t"
"cmp $64, " LEN_REG "\n\t"
"jb copy_fwd63\n\t"
"1:\n\t" /* copy 64-bytes blocks in loop, dest 16-bytes aligned */
"movdqu 0x00(" SRC_REG "), %xmm0\n\t"
"movdqu 0x10(" SRC_REG "), %xmm1\n\t"
"movdqu 0x20(" SRC_REG "), %xmm2\n\t"
"movdqu 0x30(" SRC_REG "), %xmm3\n\t"
"movdqa %xmm0, 0x00(" DEST_REG ")\n\t"
"movdqa %xmm1, 0x10(" DEST_REG ")\n\t"
"movdqa %xmm2, 0x20(" DEST_REG ")\n\t"
"movdqa %xmm3, 0x30(" DEST_REG ")\n\t"
"add $64, " SRC_REG "\n\t"
"add $64, " DEST_REG "\n\t"
"sub $64, " LEN_REG "\n\t"
"cmp $64, " LEN_REG "\n\t"
"jae 1b\n\t"
"copy_fwd63:\n\t" /* copy last 63 bytes, dest 16-bytes aligned */
"mov " LEN_REG ", " TMP_REG "\n\t"
"and $15, " LEN_REG "\n\t"
"shr $5, " TMP_REG "\n\t"
"jnc 1f\n\t"
"movdqu 0(" SRC_REG "), %xmm0\n\t"
"movdqa %xmm0, 0(" DEST_REG ")\n\t"
"add $16, " SRC_REG "\n\t"
"add $16, " DEST_REG "\n\t"
"1:\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc copy_fwd15\n\t"
"movdqu 0x00(" SRC_REG "), %xmm0\n\t"
"movdqu 0x10(" SRC_REG "), %xmm1\n\t"
"movdqa %xmm0, 0x00(" DEST_REG ")\n\t"
"movdqa %xmm1, 0x10(" DEST_REG ")\n\t"
"add $32, " SRC_REG "\n\t"
"add $32, " DEST_REG "\n\t"
"copy_fwd15:\n\t" /* copy last 15 bytes, dest 4-bytes aligned */
"mov " LEN_REG ", " TMP_REG "\n\t"
"and $3, " LEN_REG "\n\t"
"shr $3, " TMP_REG "\n\t"
"jnc 1f\n\t"
"movsl\n\t"
"1:\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc copy_fwd3\n\t"
"movsl\n\t"
"movsl\n\t"
"copy_fwd3:\n\t" /* copy last 3 bytes */
"shr $1, " LEN_REG "\n\t"
"jnc 1f\n\t"
"movsb\n\t"
"1:\n\t"
"shr $1, " LEN_REG "\n\t"
"jnc 1f\n\t"
"movsw\n\t"
"1:\n\t"
MEMMOVE_CLEANUP
"ret\n\t"
"copy_bwd:\n\t"
"lea (" DEST_REG ", " LEN_REG "), " DEST_REG "\n\t"
"lea (" SRC_REG ", " LEN_REG "), " SRC_REG "\n\t"
"cmp $4, " LEN_REG "\n\t" /* 4-bytes align */
"jb copy_bwd3\n\t"
"mov " DEST_REG ", " TMP_REG "\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc 1f\n\t"
"dec " SRC_REG "\n\t"
"dec " DEST_REG "\n\t"
"movb (" SRC_REG "), %al\n\t"
"movb %al, (" DEST_REG ")\n\t"
"dec " LEN_REG "\n\t"
"1:\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc 1f\n\t"
"sub $2, " SRC_REG "\n\t"
"sub $2, " DEST_REG "\n\t"
"movw (" SRC_REG "), %ax\n\t"
"movw %ax, (" DEST_REG ")\n\t"
"sub $2, " LEN_REG "\n\t"
"1:\n\t" /* 16-bytes align */
"cmp $16, " LEN_REG "\n\t"
"jb copy_bwd15\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc 1f\n\t"
"sub $4, " SRC_REG "\n\t"
"sub $4, " DEST_REG "\n\t"
"movl (" SRC_REG "), %eax\n\t"
"movl %eax, (" DEST_REG ")\n\t"
"sub $4, " LEN_REG "\n\t"
"1:\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc 1f\n\t"
"sub $8, " SRC_REG "\n\t"
"sub $8, " DEST_REG "\n\t"
"movl 4(" SRC_REG "), %eax\n\t"
"movl %eax, 4(" DEST_REG ")\n\t"
"movl (" SRC_REG "), %eax\n\t"
"movl %eax, (" DEST_REG ")\n\t"
"sub $8, " LEN_REG "\n\t"
"1:\n\t"
"cmp $64, " LEN_REG "\n\t"
"jb copy_bwd63\n\t"
"1:\n\t" /* copy 64-bytes blocks in loop, dest 16-bytes aligned */
"sub $64, " SRC_REG "\n\t"
"sub $64, " DEST_REG "\n\t"
"movdqu 0x00(" SRC_REG "), %xmm0\n\t"
"movdqu 0x10(" SRC_REG "), %xmm1\n\t"
"movdqu 0x20(" SRC_REG "), %xmm2\n\t"
"movdqu 0x30(" SRC_REG "), %xmm3\n\t"
"movdqa %xmm0, 0x00(" DEST_REG ")\n\t"
"movdqa %xmm1, 0x10(" DEST_REG ")\n\t"
"movdqa %xmm2, 0x20(" DEST_REG ")\n\t"
"movdqa %xmm3, 0x30(" DEST_REG ")\n\t"
"sub $64, " LEN_REG "\n\t"
"cmp $64, " LEN_REG "\n\t"
"jae 1b\n\t"
"copy_bwd63:\n\t" /* copy last 63 bytes, dest 16-bytes aligned */
"mov " LEN_REG ", " TMP_REG "\n\t"
"and $15, " LEN_REG "\n\t"
"shr $5, " TMP_REG "\n\t"
"jnc 1f\n\t"
"sub $16, " SRC_REG "\n\t"
"sub $16, " DEST_REG "\n\t"
"movdqu (" SRC_REG "), %xmm0\n\t"
"movdqa %xmm0, (" DEST_REG ")\n\t"
"1:\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc copy_bwd15\n\t"
"sub $32, " SRC_REG "\n\t"
"sub $32, " DEST_REG "\n\t"
"movdqu 0x00(" SRC_REG "), %xmm0\n\t"
"movdqu 0x10(" SRC_REG "), %xmm1\n\t"
"movdqa %xmm0, 0x00(" DEST_REG ")\n\t"
"movdqa %xmm1, 0x10(" DEST_REG ")\n\t"
"copy_bwd15:\n\t" /* copy last 15 bytes, dest 4-bytes aligned */
"mov " LEN_REG ", " TMP_REG "\n\t"
"and $3, " LEN_REG "\n\t"
"shr $3, " TMP_REG "\n\t"
"jnc 1f\n\t"
"sub $4, " SRC_REG "\n\t"
"sub $4, " DEST_REG "\n\t"
"movl (" SRC_REG "), %eax\n\t"
"movl %eax, (" DEST_REG ")\n\t"
"1:\n\t"
"shr $1, " TMP_REG "\n\t"
"jnc copy_bwd3\n\t"
"sub $8, " SRC_REG "\n\t"
"sub $8, " DEST_REG "\n\t"
"movl 4(" SRC_REG "), %eax\n\t"
"movl %eax, 4(" DEST_REG ")\n\t"
"movl (" SRC_REG "), %eax\n\t"
"movl %eax, (" DEST_REG ")\n\t"
"copy_bwd3:\n\t" /* copy last 3 bytes */
"shr $1, " LEN_REG "\n\t"
"jnc 1f\n\t"
"dec " SRC_REG "\n\t"
"dec " DEST_REG "\n\t"
"movb (" SRC_REG "), %al\n\t"
"movb %al, (" DEST_REG ")\n\t"
"1:\n\t"
"shr $1, " LEN_REG "\n\t"
"jnc 1f\n\t"
"movw -2(" SRC_REG "), %ax\n\t"
"movw %ax, -2(" DEST_REG ")\n\t"
"1:\n\t"
MEMMOVE_CLEANUP
"ret" )
#endif
/*********************************************************************
* memmove (MSVCRT.@)
*/
#ifdef WORDS_BIGENDIAN
# define MERGE(w1, sh1, w2, sh2) ((w1 << sh1) | (w2 >> sh2))
#else
# define MERGE(w1, sh1, w2, sh2) ((w1 >> sh1) | (w2 << sh2))
#endif
void * __cdecl memmove(void *dst, const void *src, size_t n)
{
#ifdef __x86_64__
return sse2_memmove(dst, src, n);
#else
unsigned char *d = dst;
const unsigned char *s = src;
int sh1;
#ifdef __i386__
if (sse2_supported)
return sse2_memmove(dst, src, n);
#endif
if (!n) return dst;
if ((size_t)dst - (size_t)src >= n)
{
for (; (size_t)d % sizeof(size_t) && n; n--) *d++ = *s++;
sh1 = 8 * ((size_t)s % sizeof(size_t));
if (!sh1)
{
while (n >= sizeof(size_t))
{
*(size_t*)d = *(size_t*)s;
s += sizeof(size_t);
d += sizeof(size_t);
n -= sizeof(size_t);
}
}
else if (n >= 2 * sizeof(size_t))
{
int sh2 = 8 * sizeof(size_t) - sh1;
size_t x, y;
s -= sh1 / 8;
x = *(size_t*)s;
do
{
s += sizeof(size_t);
y = *(size_t*)s;
*(size_t*)d = MERGE(x, sh1, y, sh2);
d += sizeof(size_t);
s += sizeof(size_t);
x = *(size_t*)s;
*(size_t*)d = MERGE(y, sh1, x, sh2);
d += sizeof(size_t);
n -= 2 * sizeof(size_t);
} while (n >= 2 * sizeof(size_t));
s += sh1 / 8;
}
while (n--) *d++ = *s++;
return dst;
}
else
{
d += n;
s += n;
for (; (size_t)d % sizeof(size_t) && n; n--) *--d = *--s;
sh1 = 8 * ((size_t)s % sizeof(size_t));
if (!sh1)
{
while (n >= sizeof(size_t))
{
s -= sizeof(size_t);
d -= sizeof(size_t);
*(size_t*)d = *(size_t*)s;
n -= sizeof(size_t);
}
}
else if (n >= 2 * sizeof(size_t))
{
int sh2 = 8 * sizeof(size_t) - sh1;
size_t x, y;
s -= sh1 / 8;
x = *(size_t*)s;
do
{
s -= sizeof(size_t);
y = *(size_t*)s;
d -= sizeof(size_t);
*(size_t*)d = MERGE(y, sh1, x, sh2);
s -= sizeof(size_t);
x = *(size_t*)s;
d -= sizeof(size_t);
*(size_t*)d = MERGE(x, sh1, y, sh2);
n -= 2 * sizeof(size_t);
} while (n >= 2 * sizeof(size_t));
s += sh1 / 8;
}
while (n--) *--d = *--s;
}
return dst;
#endif
}
#undef MERGE
/*********************************************************************
* memcpy (MSVCRT.@)
*/
void * __cdecl memcpy(void *dst, const void *src, size_t n)
{
return memmove(dst, src, n);
}
/*********************************************************************
* memset (MSVCRT.@)
*/
void* __cdecl memset(void *dst, int c, size_t n)
{
volatile unsigned char *d = dst; /* avoid gcc optimizations */
while (n--) *d++ = c;
return dst;
}
/*********************************************************************
* strchr (MSVCRT.@)
*/
char* __cdecl strchr(const char *str, int c)
{
do
{
if (*str == (char)c) return (char*)str;
} while (*str++);
return NULL;
}
/*********************************************************************
* strrchr (MSVCRT.@)
*/
char* __cdecl strrchr(const char *str, int c)
{
char *ret = NULL;
do { if (*str == (char)c) ret = (char*)str; } while (*str++);
return ret;
}
/*********************************************************************
* memchr (MSVCRT.@)
*/
void* __cdecl memchr(const void *ptr, int c, size_t n)
{
const unsigned char *p = ptr;
for (p = ptr; n; n--, p++) if (*p == (unsigned char)c) return (void *)(ULONG_PTR)p;
return NULL;
}
/*********************************************************************
* strcmp (MSVCRT.@)
*/
int __cdecl strcmp(const char *str1, const char *str2)
{
while (*str1 && *str1 == *str2) { str1++; str2++; }
if ((unsigned char)*str1 > (unsigned char)*str2) return 1;
if ((unsigned char)*str1 < (unsigned char)*str2) return -1;
return 0;
}
/*********************************************************************
* strncmp (MSVCRT.@)
*/
int __cdecl strncmp(const char *str1, const char *str2, size_t len)
{
if (!len) return 0;
while (--len && *str1 && *str1 == *str2) { str1++; str2++; }
return (unsigned char)*str1 - (unsigned char)*str2;
}
/*********************************************************************
* _strnicmp_l (MSVCRT.@)
*/
int __cdecl _strnicmp_l(const char *s1, const char *s2,
size_t count, _locale_t locale)
{
pthreadlocinfo locinfo;
int c1, c2;
if(s1==NULL || s2==NULL)
return _NLSCMPERROR;
if(!count)
return 0;
if(!locale)
locinfo = get_locinfo();
else
locinfo = locale->locinfo;
if(!locinfo->lc_handle[LC_CTYPE])
{
do {
if ((c1 = *s1++) >= 'A' && c1 <= 'Z')
c1 -= 'A' - 'a';
if ((c2 = *s2++) >= 'A' && c2 <= 'Z')
c2 -= 'A' - 'a';
}while(--count && c1 && c1==c2);
return c1-c2;
}
do {
c1 = _tolower_l((unsigned char)*s1++, locale);
c2 = _tolower_l((unsigned char)*s2++, locale);
}while(--count && c1 && c1==c2);
return c1-c2;
}
/*********************************************************************
* _stricmp_l (MSVCRT.@)
*/
int __cdecl _stricmp_l(const char *s1, const char *s2, _locale_t locale)
{
return _strnicmp_l(s1, s2, -1, locale);
}
/*********************************************************************
* _strnicmp (MSVCRT.@)
*/
int __cdecl _strnicmp(const char *s1, const char *s2, size_t count)
{
return _strnicmp_l(s1, s2, count, NULL);
}
/*********************************************************************
* _stricmp (MSVCRT.@)
*/
int __cdecl _stricmp(const char *s1, const char *s2)
{
return _strnicmp_l(s1, s2, -1, NULL);
}
/*********************************************************************
* strstr (MSVCRT.@)
*/
char* __cdecl strstr(const char *haystack, const char *needle)
{
size_t i, j, len, needle_len, lps_len;
BYTE lps[256];
needle_len = strlen(needle);
if (!needle_len) return (char*)haystack;
lps_len = needle_len > ARRAY_SIZE(lps) ? ARRAY_SIZE(lps) : needle_len;
lps[0] = 0;
len = 0;
i = 1;
while (i < lps_len)
{
if (needle[i] == needle[len]) lps[i++] = ++len;
else if (len) len = lps[len-1];
else lps[i++] = 0;
}
i = j = 0;
while (haystack[i])
{
while (j < lps_len && haystack[i] && haystack[i] == needle[j])
{
i++;
j++;
}
if (j == needle_len) return (char*)haystack + i - j;
else if (j)
{
if (j == ARRAY_SIZE(lps) && !strncmp(haystack + i, needle + j, needle_len - j))
return (char*)haystack + i - j;
j = lps[j-1];
}
else if (haystack[i]) i++;
}
return NULL;
}
/*********************************************************************
* _memicmp_l (MSVCRT.@)
*/
int __cdecl _memicmp_l(const void *v1, const void *v2, size_t len, _locale_t locale)
{
const char *s1 = v1, *s2 = v2;
int ret = 0;
#if _MSVCR_VER == 0 || _MSVCR_VER >= 80
if (!s1 || !s2)
{
if (len)
MSVCRT_INVALID_PMT(NULL, EINVAL);
return len ? _NLSCMPERROR : 0;
}
#endif
while (len--)
{
if ((ret = _tolower_l(*s1, locale) - _tolower_l(*s2, locale)))
break;
s1++;
s2++;
}
return ret;
}
/*********************************************************************
* _memicmp (MSVCRT.@)
*/
int __cdecl _memicmp(const void *s1, const void *s2, size_t len)
{
return _memicmp_l(s1, s2, len, NULL);
}
/*********************************************************************
* strcspn (MSVCRT.@)
*/
size_t __cdecl strcspn(const char *str, const char *reject)
{
BOOL rejects[256];
const char *p;
memset(rejects, 0, sizeof(rejects));
p = reject;
while(*p)
{
rejects[(unsigned char)*p] = TRUE;
p++;
}
p = str;
while(*p && !rejects[(unsigned char)*p]) p++;
return p - str;
}
/*********************************************************************
* strpbrk (MSVCRT.@)
*/
char* __cdecl strpbrk(const char *str, const char *accept)
{
for (; *str; str++) if (strchr( accept, *str )) return (char*)str;
return NULL;
}
/*********************************************************************
* __strncnt (MSVCRT.@)
*/
size_t __cdecl __strncnt(const char *str, size_t size)
{
size_t ret = 0;
#if _MSVCR_VER >= 140
while (*str++ && size--)
#else
while (size-- && *str++)
#endif
{
ret++;
}
return ret;
}
#ifdef _CRTDLL
/*********************************************************************
* _strdec (CRTDLL.@)
*/
char * CDECL _strdec(const char *str1, const char *str2)
{
return (char *)(str2 - 1);
}
/*********************************************************************
* _strinc (CRTDLL.@)
*/
char * CDECL _strinc(const char *str)
{
return (char *)(str + 1);
}
/*********************************************************************
* _strnextc (CRTDLL.@)
*/
unsigned int CDECL _strnextc(const char *str)
{
return (unsigned char)str[0];
}
/*********************************************************************
* _strninc (CRTDLL.@)
*/
char * CDECL _strninc(const char *str, size_t len)
{
return (char *)(str + len);
}
/*********************************************************************
* _strspnp (CRTDLL.@)
*/
char * CDECL _strspnp( const char *str1, const char *str2)
{
str1 += strspn( str1, str2 );
return *str1 ? (char*)str1 : NULL;
}
#endif
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