4.3BSD beta release manual page

[unix-history] / usr / src / lib / libc / string / index.c

/* @(#)index.c  4.1 (Berkeley) %G% */
/*
* Return the ptr in sp at which the character c appears;
* NULL if not found
*/

#define NULL    0

char *
index(sp, c)
register char *sp, c;
{
       do {
               if (*sp == c)
                       return(sp);
       } while (*sp++);
       return(NULL);
}