INDEX(3) MachTen Programmer’s Manual INDEX(3)

NAME
index - locate character in string

SYNOPSIS
#include <string.h>

char *
index(const char *s, int c)

DESCRIPTION
The index() function locates the first character matching c (converted to
a char) in the null-terminated string s.

RETURN VALUES
A pointer to the character is returned if it is found; otherwise NULL is
returned. If c is ’ ’, index() locates the terminating ’ ’.

SEE ALSO
memchr(3), rindex(3), strchr(3), strcspn(3), strpbrk(3), strrchr(3),
strsep(3), strspn(3), strstr(3), strtok(3)

HISTORY
A index() function appeared in Version 6 AT&T UNIX.

4.4BSD June 4, 1993 1