llvm-project

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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// <set>
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// class set
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// template<class Key, class Compare, class Allocator>
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//   synth-three-way-result<Key> operator<=>(const set<Key, Compare, Allocator>& x,
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//                                           const set<Key, Compare, Allocator>& y);
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#include <set>
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#include "test_allocator.h"
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int main(int, char**) {
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  // Mismatching allocators
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  {
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    std::set<int, std::less<int>, std::allocator<int>> s1;
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    std::set<int, std::less<int>, test_allocator<int>> s2;
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    // expected-error@+1 {{invalid operands to binary expression}}
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    s1 <=> s2;
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    // expected-error@+1 {{invalid operands to binary expression}}
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    s2 <=> s1;
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  }
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  // Mismatching comparision functions
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  {
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    std::set<int, std::less<int>> s1;
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    std::set<int, std::greater<int>> s2;
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    // expected-error@+1 {{invalid operands to binary expression}}
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    s1 <=> s2;
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    // expected-error@+1 {{invalid operands to binary expression}}
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    s2 <=> s1;
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  }
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  {
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    std::set<int, std::less<int>> s1;
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    std::set<int, std::less<float>> s2;
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    // expected-error@+1 {{invalid operands to binary expression}}
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    s1 <=> s2;
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    // expected-error@+1 {{invalid operands to binary expression}}
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    s2 <=> s1;
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  }
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  // Mismatching types
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  {
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    std::set<int> s1;
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    std::set<float> s2;
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    // expected-error@+1 {{invalid operands to binary expression}}
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    s1 <=> s2;
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    // expected-error@+1 {{invalid operands to binary expression}}
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    s2 <=> s1;
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  }
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  return 0;
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}
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