38 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <string>10 11// template<> struct char_traits<wchar_t>12 13// static constexpr bool lt(char_type c1, char_type c2);14 15// UNSUPPORTED: no-wide-characters16 17#include <string>18#include <cassert>19 20#include "test_macros.h"21 22int main(int, char**) {23 assert(std::char_traits<wchar_t>::lt(L'\0', L'A') == (L'\0' < L'A'));24 assert(std::char_traits<wchar_t>::lt(L'A', L'\0') == (L'A' < L'\0'));25 26 assert(std::char_traits<wchar_t>::lt(L'a', L'a') == (L'a' < L'a'));27 assert(std::char_traits<wchar_t>::lt(L'A', L'a') == (L'A' < L'a'));28 assert(std::char_traits<wchar_t>::lt(L'a', L'A') == (L'a' < L'A'));29 30 assert(std::char_traits<wchar_t>::lt(L'a', L'z') == (L'a' < L'z'));31 assert(std::char_traits<wchar_t>::lt(L'A', L'Z') == (L'A' < L'Z'));32 33 assert(std::char_traits<wchar_t>::lt(L' ', L'A') == (L' ' < L'A'));34 assert(std::char_traits<wchar_t>::lt(L'A', L'~') == (L'A' < L'~'));35 36 return 0;37}38