28 lines · 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-exception6//7//===----------------------------------------------------------------------===//8 9// <functional>10 11// not212// deprecated in C++1713 14// UNSUPPORTED: c++03, c++11, c++1415// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_ENABLE_CXX20_REMOVED_NEGATORS16 17#include <functional>18 19struct Predicate {20 typedef int first_argument_type;21 typedef int second_argument_type;22 bool operator()(first_argument_type, second_argument_type) const { return true; }23};24 25void f() {26 std::not2(Predicate()); // expected-warning {{'not2<Predicate>' is deprecated}}27}28