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Diffstat (limited to 'newlib/libc/string/strpbrk.c')
-rw-r--r-- | newlib/libc/string/strpbrk.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/newlib/libc/string/strpbrk.c b/newlib/libc/string/strpbrk.c new file mode 100644 index 0000000..e7f2dd2 --- /dev/null +++ b/newlib/libc/string/strpbrk.c @@ -0,0 +1,58 @@ +/* +FUNCTION + <<strpbrk>>---find chars in string + +INDEX + strpbrk + +ANSI_SYNOPSIS + #include <string.h> + char *strpbrk(const char *<[s1]>, const char *<[s2]>); + +TRAD_SYNOPSIS + #include <string.h> + char *strpbrk(<[s1]>, <[s2]>) + char *<[s1]>; + char *<[s2]>; + +DESCRIPTION + This function locates the first occurence in the string + pointed to by <[s1]> of any character in string pointed to by + <[s2]> (excluding the terminating null character). + +RETURNS + <<strpbrk>> returns a pointer to the character found in <[s1]>, or a + null pointer if no character from <[s2]> occurs in <[s1]>. + +PORTABILITY +<<strpbrk>> requires no supporting OS subroutines. +*/ + +#include <string.h> + +char * +_DEFUN (strpbrk, (s1, s2), + _CONST char *s1 _AND + _CONST char *s2) +{ + _CONST char *c = s2; + if (!*s1) + return (char *) NULL; + + while (*s1) + { + for (c = s2; *c; c++) + { + if (*s1 == *c) + break; + } + if (*c) + break; + s1++; + } + + if (*c == '\0') + s1 = NULL; + + return (char *) s1; +} |