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/* string.h: Extra string defs
Copyright 2001 Red Hat, Inc.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _CYGWIN_STRING_H
#define _CYGWIN_STRING_H
#include_next <string.h>
#ifdef __cplusplus
extern "C" {
#endif
#undef strchr
#define strchr cygwin_strchr
static inline __stdcall char *
strchr (const char *s, int c)
{
register char * res;
__asm__ __volatile__ ("\
movb %%al,%%ah\n\
1: movb (%1),%%al\n\
cmpb %%ah,%%al\n\
je 2f\n\
incl %1\n\
testb %%al,%%al\n\
jne 1b\n\
xorl %1,%1\n\
2: movl %1,%0\n\
":"=a" (res), "=r" (s)
:"0" (c), "1" (s));
return res;
}
#undef strechr
#define strechr cygwin_strechr
static inline __stdcall char *
strechr (const char *s, int c)
{
register char * res;
__asm__ __volatile__ ("\
movb %%al,%%ah\n\
1: movb (%1),%%al\n\
cmpb %%ah,%%al\n\
je 2f\n\
incl %1\n\
testb %%al,%%al\n\
jne 1b\n\
decl %1\n\
2: movl %1,%0\n\
":"=a" (res), "=r" (s)
:"0" (c), "1" (s));
return res;
}
extern const char isalpha_array[];
#undef strcasematch
#define strcasematch cygwin_strcasematch
static inline int
cygwin_strcasematch (const char *cs, const char *ct)
{
register int __res;
int d0, d1;
__asm__ ("\
.global _isalpha_array \n\
cld \n\
andl $0xff,%%eax \n\
1: lodsb \n\
scasb \n\
je 2f \n\
xorb _isalpha_array(%%eax),%%al \n\
cmpb -1(%%edi),%%al \n\
jne 3f \n\
2: testb %%al,%%al \n\
jnz 1b \n\
movl $1,%%eax \n\
jmp 4f \n\
3: xor %0,%0 \n\
4:"
:"=a" (__res), "=&S" (d0), "=&D" (d1)
: "1" (cs), "2" (ct));
return __res;
}
#undef strncasematch
#define strncasematch cygwin_strncasematch
static inline int
cygwin_strncasematch (const char *cs, const char *ct, size_t n)
{
register int __res;
int d0, d1, d2;
__asm__ ("\
.global _isalpha_array; \n\
cld \n\
andl $0xff,%%eax \n\
1: decl %3 \n\
js 3f \n\
lodsb \n\
scasb \n\
je 2f \n\
xorb _isalpha_array(%%eax),%%al \n\
cmpb -1(%%edi),%%al \n\
jne 4f \n\
2: testb %%al,%%al \n\
jnz 1b \n\
3: movl $1,%%eax \n\
jmp 5f \n\
4: xor %0,%0 \n\
5:"
:"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
:"1" (cs), "2" (ct), "3" (n));
return __res;
}
#ifdef __cplusplus
}
#endif
#endif /* _CYGWIN_STRING_H */
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