libcxx/test/std/numerics/numeric.ops/numeric.ops.midpoint/midpoint.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, c++11, c++14, c++17
  10 // <numeric>
  11
  12 // template <class _Tp>
  13 // _Tp midpoint(_Tp __a, _Tp __b) noexcept
  14
  15 // An overload exists for each of char and all arithmetic types except bool.
  16
  17 #include <numeric>
  18
  19 #include "test_macros.h"
  20
  21 int func1 () { return 1; }
  22 int func2 () { return 2; }
  23
  24 struct Incomplete;
  25 Incomplete *ip = nullptr;
  26 void       *vp = nullptr;
  27
  28 int main(int, char**)
  29 {
  30     (void) std::midpoint(false, true);  // expected-error {{no matching function for call to 'midpoint'}}
  31
  32 //  A couple of odd pointer types that should fail
  33     (void) std::midpoint(nullptr, nullptr);  // expected-error {{no matching function for call to 'midpoint'}}
  34     (void) std::midpoint(func1, func2);      // expected-error {{no matching function for call to 'midpoint'}}
  35     (void) std::midpoint(ip, ip);            // expected-error {{no matching function for call to 'midpoint'}}
  36     (void) std::midpoint(vp, vp);            // expected-error {{no matching function for call to 'midpoint'}}
  37
  38     return 0;
  39 }