27 lines
1.0 KiB
C
27 lines
1.0 KiB
C
|
#ifndef COSMOPOLITAN_LIBC_STR_TINYSTRSTR_H_
|
||
|
|
#define COSMOPOLITAN_LIBC_STR_TINYSTRSTR_H_
|
||
|
|
#include "libc/str/str.h"
|
||
|
|
#if !(__ASSEMBLER__ + __LINKER__ + 0)
|
||
|
|
|
||
|
|
#define tinystrstr(HAYSTACK, NEEDLE) \
|
||
|
|
({ \
|
||
|
|
autotype(HAYSTACK) Haystack = (HAYSTACK); \
|
||
|
|
typeof(Haystack) Needle = (NEEDLE); \
|
||
|
|
for (;;) { \
|
||
|
|
size_t i = 0; \
|
||
|
|
for (;;) { \
|
||
|
|
if (!Needle[i]) goto Found; \
|
||
|
|
if (!Haystack[i]) break; \
|
||
|
|
if (Needle[i] != Haystack[i]) break; \
|
||
|
|
++i; \
|
||
|
|
} \
|
||
|
|
if (!*Haystack++) break; \
|
||
|
|
} \
|
||
|
|
Haystack = NULL; \
|
||
|
|
Found: \
|
||
|
|
Haystack; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
|
||
|
|
#endif /* COSMOPOLITAN_LIBC_STR_TINYSTRSTR_H_ */
|