Method repeat

core/string/ustring.cpp:4182–4207

}

String String::repeat(int p_count) const {
	ERR_FAIL_COND_V_MSG(p_count < 0, "", "Parameter count should be a positive number.");

	if (p_count == 0) {
		return "";
	}

	if (p_count == 1) {
		return *this;
	}

	int len = length();
	String new_string = *this;
	new_string.resize_uninitialized(p_count * len + 1);

	char32_t *dst = new_string.ptrw();
	int offset = 1;
	int stride = 1;
	while (offset < p_count) {
		memcpy(dst + offset * len, dst, stride * len * sizeof(char32_t));
		offset += stride;
		stride = MIN(stride * 2, p_count - offset);
	}
	dst[p_count * len] = _null;
	return new_string;
}

String String::reverse() const {
	int len = length();