diff options
Diffstat (limited to 'lib/libc/string/strchr.c')
-rw-r--r-- | lib/libc/string/strchr.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/libc/string/strchr.c b/lib/libc/string/strchr.c new file mode 100644 index 0000000..09b4d43 --- /dev/null +++ b/lib/libc/string/strchr.c @@ -0,0 +1,20 @@ +#include <string.h> + +char *strchr(const char *s, int c) { + do { + if ((char)c == *s) { + return (char*)s; + } + } while (*s++ != '\0'); + return NULL; +} + +char *strrchr(const char *s, int c) +{ + const char *last = NULL; + do { + if (*s == (char)c) + last = s; + } while (*s++); + return (char *)last; +} |