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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <functional>
// See https://bugs.llvm.org/show_bug.cgi?id=20002
#include <functional>
#include <type_traits>
#include "test_macros.h"
using Fn = std::function<void()>;
struct S : public std::function<void()> { using function::function; };
int main() {
S s( [](){} );
S f1( s );
#if TEST_STD_VER <= 14
S f2(std::allocator_arg, std::allocator<int>{}, s);
#endif
}
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