diff options
Diffstat (limited to 'winsup/cygwin/string.h')
| -rw-r--r-- | winsup/cygwin/string.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/winsup/cygwin/string.h b/winsup/cygwin/string.h index 84dc14cb7..778bb40ac 100644 --- a/winsup/cygwin/string.h +++ b/winsup/cygwin/string.h @@ -38,6 +38,70 @@ strchr (const char *s, int c) 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 |