Locates the last occurrence of a specified character in a string.
#include <string.h> char *rindex ( const char *s, int c);
(IN) Points to the string containing characters to be searched.
(IN) Specifies the character to locate.
Returns a pointer to the located character or a NULL pointer if the character does not occur in the string.
The rindex interface has been implemented as a macro. The strrchr function is the preferred interface.