source: buchla-68k/libsm/memchr.c@ 0580615

/*
   =============================================================================
        memchr.c -- search a string for a character
        Version 1 -- 1987-06-12

        Return the ptr in sp at which the character c appears;
        NULL if not found in n chars; don't stop at \0.
   =============================================================================
*/

char *memchr(char *sp, char c, int n)
{
        while (--n >= 0)
                if (*sp++ == c)
                        return(--sp);
        return((char *)0);
}