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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// <set>
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// Check that std::multiset fails to instantiate if the comparison predicate is
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// not copy-constructible. This is LWG issue 2436
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#include <set>
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template <class T>
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struct Comp {
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    bool operator () (const T& lhs, const T& rhs) const { return lhs < rhs; }
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    Comp () {}
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private:
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    Comp (const Comp &); // declared but not defined
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    };
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int main(int, char**) {
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    std::multiset<int, Comp<int> > m;
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  return 0;
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}
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