libcxx/test/std/strings/basic.string/string.cons/initializer_list.pass.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-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03
  10
  11 // <string>
  12
  13 // basic_string(initializer_list<charT> il, const Allocator& a = Allocator()); // constexpr since C++20
  14
  15 #include <string>
  16 #include <cassert>
  17
  18 #include "test_macros.h"
  19 #include "test_allocator.h"
  20 #include "min_allocator.h"
  21 #include "asan_testing.h"
  22
  23 // clang-format off
  24 template <template <class> class Alloc>
  25 TEST_CONSTEXPR_CXX20 void test_string() {
  26   {
  27     std::basic_string<char, std::char_traits<char>, Alloc<char> > s = {'a', 'b', 'c'};
  28     assert(s == "abc");
  29     LIBCPP_ASSERT(is_string_asan_correct(s));
  30   }
  31   {
  32     std::basic_string<char, std::char_traits<char>, Alloc<char> > s = {'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a'};
  33     assert(s == "aaaaaaaaaaaaaaaaaaaaaaaaa");
  34     LIBCPP_ASSERT(is_string_asan_correct(s));
  35   }
  36 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  37   {
  38     std::basic_string<wchar_t, std::char_traits<wchar_t>, Alloc<wchar_t> > s = {L'a', L'b', L'c'};
  39     assert(s == L"abc");
  40     LIBCPP_ASSERT(is_string_asan_correct(s));
  41   }
  42   {
  43     std::basic_string<wchar_t, std::char_traits<wchar_t>, Alloc<wchar_t> > s = {L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a', L'a'};
  44     assert(s == L"aaaaaaaaaaaaaaaaaaaaaaaaa");
  45     LIBCPP_ASSERT(is_string_asan_correct(s));
  46   }
  47 #endif
  48 }
  49 // clang-format on
  50
  51 TEST_CONSTEXPR_CXX20 bool test() {
  52   test_string<std::allocator>();
  53   test_string<min_allocator>();
  54   test_string<safe_allocator>();
  55
  56   return true;
  57 }
  58
  59 int main(int, char**) {
  60   test();
  61 #if TEST_STD_VER > 17
  62   static_assert(test());
  63 #endif
  64
  65   return 0;
  66 }