Searches for a character in a string.
Format
#include <strings.h>
char *index (const char *s, int c);
1 – Function Variants
The index function has variants named _index32 and _index64 for
use with 32-bit and 64-bit pointer sizes, respectively.
2 – Arguments
s
The string to search.
c
The character to search for.
3 – Description
The index function is identical to the strchr function, and is
provided for compatibility with some UNIX implementations.