libcxx/test/std/strings/c.strings/no_c8rtomb_mbrtoc8.verify.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 #include <uchar.h>
  12
  13 #include "test_macros.h"
  14
  15 // When C++ char8_t support is not enabled, definitions of these functions that
  16 // match the C2X declarations may still be present in the global namespace with
  17 // a char8_t typedef substituted for the C++ char8_t type. If so, these are not
  18 // the declarations we are looking for, so don't test for them.
  19 #if !defined(TEST_HAS_NO_CHAR8_T)
  20 using U = decltype(::c8rtomb);
  21 using V = decltype(::mbrtoc8);
  22 #  if !_LIBCPP_HAS_C8RTOMB_MBRTOC8
  23 // expected-error@-3 {{no member named 'c8rtomb' in the global namespace}}
  24 // expected-error@-3 {{no member named 'mbrtoc8' in the global namespace}}
  25 #  else
  26 // expected-no-diagnostics
  27 #  endif
  28 #else
  29 // expected-no-diagnostics
  30 #endif