Synopsis
#include <string.h>
char *strrchr(const char *s, int c);
Description
strrchr locates the last occurrence of c (converted to a char)
in the string pointed to by s. The terminating null character is considered
to be part of the string.
strrchr returns a pointer to the character, or a null pointer if c
does not occur in the string.
Portability
strrchr conforms to ISO/IEC 9899:1990 (C90) and ISO/IEC 9899:1999 (C99).