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- /* File : strrchr.c
- Author : Richard A. O'Keefe.
- Updated: 10 April 1984
- Defines: strrchr(), rindex()
-
- strrchr(s, c) returns a pointer to the last place in s where c
- occurs, or NullS if c does not occur in s. This function is called
- rindex in V7 and 4.?bsd systems; while not ideal the name is clearer
- than strrchr, so rindex remains in strings.h as a macro. NB:
- strrchr looks for single characters, not for sets or strings. The
- parameter 'c' is declared 'int' so it will go in a register; if your
- C compiler is happy with register char change it to that.
- */
-
- #include "strings.h"
-
- char *strrchr(s, c)
- register _char_ *s;
- register int c;
- {
- register char *t;
-
- t = NullS;
- do if (*s == c) t = s; while (*s++);
- return t;
- }
-