method

*

Ruby latest stable (v2_5_5) - 0 notes - Class: String

*(p1) public

Copy — Returns a new String containing integer copies of the receiver. integer must be greater than or equal to 0.

"Ho! " * 3   #=> "Ho! Ho! Ho! "
"Ho! " * 0   #=> ""

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VALUE
rb_str_times(VALUE str, VALUE times)
{
    VALUE str2;
    long n, len;
    char *ptr2;
    int termlen;

    if (times == INT2FIX(1)) {
        return rb_str_dup(str);
    }
    if (times == INT2FIX(0)) {
        str2 = str_alloc(rb_obj_class(str));
        rb_enc_copy(str2, str);
        OBJ_INFECT(str2, str);
        return str2;
    }
    len = NUM2LONG(times);
    if (len < 0) {
        rb_raise(rb_eArgError, "negative argument");
    }
    if (RSTRING_LEN(str) == 1 && RSTRING_PTR(str)[0] == 0) {
       str2 = str_alloc(rb_obj_class(str));
       if (!STR_EMBEDDABLE_P(len, 1)) {
           RSTRING(str2)->as.heap.aux.capa = len;
           RSTRING(str2)->as.heap.ptr = ZALLOC_N(char, (size_t)len + 1);
           STR_SET_NOEMBED(str2);
       }
       STR_SET_LEN(str2, len);
       rb_enc_copy(str2, str);
       OBJ_INFECT(str2, str);
       return str2;
    }
    if (len && LONG_MAX/len <  RSTRING_LEN(str)) {
        rb_raise(rb_eArgError, "argument too big");
    }

    len *= RSTRING_LEN(str);
    termlen = TERM_LEN(str);
    str2 = str_new0(rb_obj_class(str), 0, len, termlen);
    ptr2 = RSTRING_PTR(str2);
    if (len) {
        n = RSTRING_LEN(str);
        memcpy(ptr2, RSTRING_PTR(str), n);
        while (n <= len/2) {
            memcpy(ptr2 + n, ptr2, n);
            n *= 2;
        }
        memcpy(ptr2 + n, ptr2, len-n);
    }
    STR_SET_LEN(str2, len);
    TERM_FILL(&ptr2[len], termlen);
    OBJ_INFECT(str2, str);
    rb_enc_cr_str_copy_for_substr(str2, str);

    return str2;
}

*

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