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7c3769df62
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@351648 91177308-0d34-0410-b5e6-96231b3b80d8
125 lines
4.3 KiB
C++
125 lines
4.3 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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// <functional>
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// REQUIRES: c++98 || c++03 || c++11 || c++14
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// class function<R(ArgTypes...)>
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// template<class A> function(allocator_arg_t, const A&, const function&);
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#include <functional>
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#include <cassert>
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#include "min_allocator.h"
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#include "test_allocator.h"
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#include "count_new.hpp"
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#include "../function_types.h"
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class DummyClass {};
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template <class FuncType, class AllocType>
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void test_FunctionObject(AllocType& alloc)
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{
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assert(globalMemCounter.checkOutstandingNewEq(0));
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{
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// Construct function from FunctionObject.
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std::function<FuncType> f = FunctionObject();
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assert(FunctionObject::count == 1);
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assert(globalMemCounter.checkOutstandingNewEq(1));
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assert(f.template target<FunctionObject>());
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assert(f.template target<FuncType>() == 0);
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assert(f.template target<FuncType*>() == 0);
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// Copy function with allocator
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std::function<FuncType> f2(std::allocator_arg, alloc, f);
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assert(FunctionObject::count == 2);
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assert(globalMemCounter.checkOutstandingNewEq(2));
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assert(f2.template target<FunctionObject>());
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assert(f2.template target<FuncType>() == 0);
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assert(f2.template target<FuncType*>() == 0);
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}
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assert(FunctionObject::count == 0);
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assert(globalMemCounter.checkOutstandingNewEq(0));
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}
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template <class FuncType, class AllocType>
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void test_FreeFunction(AllocType& alloc)
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{
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assert(globalMemCounter.checkOutstandingNewEq(0));
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{
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// Construct function from function pointer.
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FuncType* target = &FreeFunction;
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std::function<FuncType> f = target;
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(f.template target<FuncType*>());
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assert(*f.template target<FuncType*>() == target);
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assert(f.template target<FuncType>() == 0);
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// Copy function with allocator
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std::function<FuncType> f2(std::allocator_arg, alloc, f);
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(f2.template target<FuncType*>());
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assert(*f2.template target<FuncType*>() == target);
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assert(f2.template target<FuncType>() == 0);
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}
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assert(globalMemCounter.checkOutstandingNewEq(0));
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}
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template <class TargetType, class FuncType, class AllocType>
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void test_MemFunClass(AllocType& alloc)
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{
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assert(globalMemCounter.checkOutstandingNewEq(0));
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{
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// Construct function from function pointer.
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TargetType target = &MemFunClass::foo;
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std::function<FuncType> f = target;
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(f.template target<TargetType>());
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assert(*f.template target<TargetType>() == target);
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assert(f.template target<FuncType*>() == 0);
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// Copy function with allocator
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std::function<FuncType> f2(std::allocator_arg, alloc, f);
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(f2.template target<TargetType>());
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assert(*f2.template target<TargetType>() == target);
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assert(f2.template target<FuncType*>() == 0);
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}
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assert(globalMemCounter.checkOutstandingNewEq(0));
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}
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template <class Alloc>
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void test_for_alloc(Alloc& alloc)
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{
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// Large FunctionObject -- Allocation should occur
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test_FunctionObject<int()>(alloc);
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test_FunctionObject<int(int)>(alloc);
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test_FunctionObject<int(int, int)>(alloc);
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test_FunctionObject<int(int, int, int)>(alloc);
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// Free function -- No allocation should occur
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test_FreeFunction<int()>(alloc);
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test_FreeFunction<int(int)>(alloc);
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test_FreeFunction<int(int, int)>(alloc);
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test_FreeFunction<int(int, int, int)>(alloc);
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// Member function -- No allocation should occur.
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test_MemFunClass<int(MemFunClass::*)() const, int(MemFunClass&)>(alloc);
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test_MemFunClass<int(MemFunClass::*)(int) const, int(MemFunClass&, int)>(alloc);
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test_MemFunClass<int(MemFunClass::*)(int, int) const, int(MemFunClass&, int, int)>(alloc);
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}
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int main()
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{
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{
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bare_allocator<DummyClass> alloc;
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test_for_alloc(alloc);
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}
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{
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non_default_test_allocator<DummyClass> alloc(42);
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test_for_alloc(alloc);
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}
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}
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