diff options
Diffstat (limited to 'str_rchr.c')
| -rw-r--r-- | str_rchr.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/str_rchr.c b/str_rchr.c new file mode 100644 index 0000000..b128c4c --- /dev/null +++ b/str_rchr.c @@ -0,0 +1,20 @@ +#include "str.h" + +unsigned int str_rchr(register const char *s,int c) +{ + register char ch; + register const char *t; + register const char *u; + + ch = c; + t = s; + u = 0; + for (;;) { + if (!*t) break; if (*t == ch) u = t; ++t; + if (!*t) break; if (*t == ch) u = t; ++t; + if (!*t) break; if (*t == ch) u = t; ++t; + if (!*t) break; if (*t == ch) u = t; ++t; + } + if (!u) u = t; + return u - s; +} |