method

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v1_9_1_378 - Show latest stable - 0 notes - Class: Array

*(p1) public

Repetition—With a String argument, equivalent to self.join(str). Otherwise, returns a new array built by concatenating the int copies of self.

[ 1, 2, 3 ] * 3    #=> [ 1, 2, 3, 1, 2, 3, 1, 2, 3 ]
[ 1, 2, 3 ] * ","  #=> "1,2,3"

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static VALUE
rb_ary_times(VALUE ary, VALUE times)
{
    VALUE ary2, tmp;
    long i, len;

    tmp = rb_check_string_type(times);
    if (!NIL_P(tmp)) {
        return rb_ary_join(ary, tmp);
    }

    len = NUM2LONG(times);
    if (len == 0) {
        ary2 = ary_new(rb_obj_class(ary), 0);
        goto out;
    }
    if (len < 0) {
        rb_raise(rb_eArgError, "negative argument");
    }
    if (ARY_MAX_SIZE/len < RARRAY_LEN(ary)) {
        rb_raise(rb_eArgError, "argument too big");
    }
    len *= RARRAY_LEN(ary);

    ary2 = ary_new(rb_obj_class(ary), len);
    ARY_SET_LEN(ary2, len);

    for (i=0; i<len; i+=RARRAY_LEN(ary)) {
        MEMCPY(RARRAY_PTR(ary2)+i, RARRAY_PTR(ary), VALUE, RARRAY_LEN(ary));
    }
  out:
    OBJ_INFECT(ary2, ary);

    return ary2;
}

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