3ca414b63a
This also removes some tests which were redundant, wrong, or never run. Specifically, - `libcxx/utilities/meta/stress_tests/*` were never run and are of questionable usefulness - `libcxx/utilities/template.bitset/includes.pass.cpp` is completely redundant and partially incorrect Also notably, `libcxx/language.support/support.c.headers/support.c.headers.other/math.lerp.verify.cpp` has been refactored to only test the standard mandate.
86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
//===----------------------------------------------------------------------===//
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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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// REQUIRES: c++03 || c++11 || c++14
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// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
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// <functional>
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// reference_wrapper
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// check for deriving from unary_function
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#include <functional>
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#include <type_traits>
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#include "test_macros.h"
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class functor1
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: public std::unary_function<int, char>
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{
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};
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class functor2
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: public std::binary_function<char, int, double>
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{
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};
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class functor3
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: public std::unary_function<int, int>,
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public std::binary_function<char, int, double>
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{
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public:
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typedef float result_type;
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};
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class functor4
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: public std::unary_function<int, int>,
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public std::binary_function<char, int, double>
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{
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public:
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};
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struct C
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{
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typedef int argument_type;
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typedef int result_type;
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};
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int main(int, char**)
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{
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static_assert((std::is_base_of<std::unary_function<int, char>,
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std::reference_wrapper<functor1> >::value), "");
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static_assert((!std::is_base_of<std::unary_function<char, int>,
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std::reference_wrapper<functor2> >::value), "");
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static_assert((std::is_base_of<std::unary_function<int, int>,
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std::reference_wrapper<functor3> >::value), "");
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static_assert((std::is_base_of<std::unary_function<int, int>,
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std::reference_wrapper<functor4> >::value), "");
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static_assert((!std::is_base_of<std::unary_function<int, int>,
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std::reference_wrapper<C> >::value), "");
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static_assert((!std::is_base_of<std::unary_function<int, float>,
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std::reference_wrapper<float(*)()> >::value), "");
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static_assert((std::is_base_of<std::unary_function<int, float>,
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std::reference_wrapper<float (int)> >::value), "");
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static_assert((!std::is_base_of<std::unary_function<int, float>,
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std::reference_wrapper<float (int, int)> >::value), "");
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static_assert((std::is_base_of<std::unary_function<int, float>,
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std::reference_wrapper<float(*)(int)> >::value), "");
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static_assert((!std::is_base_of<std::unary_function<int, float>,
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std::reference_wrapper<float(*)(int, int)> >::value), "");
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static_assert((std::is_base_of<std::unary_function<C*, float>,
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std::reference_wrapper<float(C::*)()> >::value), "");
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static_assert((std::is_base_of<std::unary_function<const volatile C*, float>,
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std::reference_wrapper<float(C::*)() const volatile> >::value), "");
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static_assert((!std::is_base_of<std::unary_function<C*, float>,
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std::reference_wrapper<float(C::*)(int)> >::value), "");
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return 0;
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}
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