INDEX(3)                       Library Routines                       INDEX(3)

NAME

       index, rindex - locate character in string

SYNOPSIS

       #include <string.h>

       char * index (const char *s, int c);
       char * rindex (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.

       The rindex function locates the last 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 '\0', index and  rindex  locate  the  terminating
       '\0'.

SEE ALSO

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

HISTORY

       Both an index and rindex function appeared in Version 6 AT&T UNIX.



GNO                             27 January 1997                       INDEX(3)