diff options
Diffstat (limited to 'str_rchr.c')
-rw-r--r-- | str_rchr.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/str_rchr.c b/str_rchr.c new file mode 100644 index 0000000..1bf19d3 --- /dev/null +++ b/str_rchr.c @@ -0,0 +1,22 @@ +#include "str.h" + +unsigned int str_rchr(s,c) +register char *s; +int c; +{ + register char ch; + register char *t; + register 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; +} |