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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// functional
// template <class F, class... Args>
// constexpr unspecified bind_front(F&&, Args&&...);
#include <functional>
#include "test_macros.h"
constexpr int pass(const int n) { return n; }
int simple(int n) { return n; }
template<class T>
T do_nothing(T t) { return t; }
struct NotMoveConst
{
NotMoveConst(NotMoveConst &&) = delete;
NotMoveConst(NotMoveConst const&) = delete;
NotMoveConst(int) { }
};
void testNotMoveConst(NotMoveConst) { }
int main(int, char**)
{
int n = 1;
const int c = 1;
auto p = std::bind_front(pass, c);
static_assert(p() == 1); // expected-error {{static_assert expression is not an integral constant expression}}
auto d = std::bind_front(do_nothing, n); // expected-error {{no matching function for call to 'bind_front'}}
auto t = std::bind_front(testNotMoveConst, NotMoveConst(0)); // expected-error {{no matching function for call to 'bind_front'}}
return 0;
}
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