each_byte

/*
 *  call-seq:
 *     str.each_byte {|fixnum| block }    => str
 *  
 *  Passes each byte in <i>str</i> to the given block.
 *     
 *     "hello".each_byte {|c| print c, ' ' }
 *     
 *  <em>produces:</em>
 *     
 *     104 101 108 108 111
 */

static VALUE
rb_str_each_byte(str)
    VALUE str;
{
    long i;

    RETURN_ENUMERATOR(str, 0, 0);
    for (i=0; i<RSTRING(str)->len; i++) {
        rb_yield(INT2FIX(RSTRING(str)->ptr[i] & 0xff));
    }
    return str;
}