index—search for character in string #include <strings.h>
char * index(const char *string, int c);
Description
This function finds the first occurence of c (converted to
a char) in the string pointed to by string (including the
terminating null character).
This function is identical to strchr.
Returns
Returns a pointer to the located character, or a null pointer
if c does not occur in string.
Portability
index requires no supporting OS subroutines.