119 lines
3.1 KiB
C++
119 lines
3.1 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// <functional>
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// class function<R(ArgTypes...)>
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// function(const function& f);
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#include <functional>
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#include <cstdlib>
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#include <cassert>
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#include "count_new.hpp"
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class A
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{
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int data_[10];
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public:
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static int count;
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A()
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{
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++count;
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for (int i = 0; i < 10; ++i)
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data_[i] = i;
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}
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A(const A&) {++count;}
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~A() {--count;}
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int operator()(int i) const
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{
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for (int j = 0; j < 10; ++j)
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i += data_[j];
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return i;
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}
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};
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int A::count = 0;
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int g(int) {return 0;}
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int main()
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{
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assert(globalMemCounter.checkOutstandingNewEq(0));
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{
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std::function<int(int)> f = A();
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assert(A::count == 1);
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assert(globalMemCounter.checkOutstandingNewEq(1));
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assert(f.target<A>());
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assert(f.target<int(*)(int)>() == 0);
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std::function<int(int)> f2 = f;
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assert(A::count == 2);
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assert(globalMemCounter.checkOutstandingNewEq(2));
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assert(f2.target<A>());
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assert(f2.target<int(*)(int)>() == 0);
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}
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assert(A::count == 0);
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assert(globalMemCounter.checkOutstandingNewEq(0));
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{
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std::function<int(int)> f = g;
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(f.target<int(*)(int)>());
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assert(f.target<A>() == 0);
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std::function<int(int)> f2 = f;
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(f2.target<int(*)(int)>());
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assert(f2.target<A>() == 0);
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}
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assert(globalMemCounter.checkOutstandingNewEq(0));
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{
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std::function<int(int)> f;
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(f.target<int(*)(int)>() == 0);
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assert(f.target<A>() == 0);
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std::function<int(int)> f2 = f;
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(f2.target<int(*)(int)>() == 0);
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assert(f2.target<A>() == 0);
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}
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{
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std::function<int(int)> f;
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(f.target<int(*)(int)>() == 0);
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assert(f.target<A>() == 0);
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assert(!f);
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std::function<long(int)> g = f;
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assert(globalMemCounter.checkOutstandingNewEq(0));
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assert(g.target<long(*)(int)>() == 0);
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assert(g.target<A>() == 0);
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assert(!g);
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}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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assert(globalMemCounter.checkOutstandingNewEq(0));
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{
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std::function<int(int)> f = A();
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assert(A::count == 1);
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assert(globalMemCounter.checkOutstandingNewEq(1));
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assert(f.target<A>());
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assert(f.target<int(*)(int)>() == 0);
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std::function<int(int)> f2 = std::move(f);
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assert(A::count == 1);
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assert(globalMemCounter.checkOutstandingNewEq(1));
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assert(f2.target<A>());
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assert(f2.target<int(*)(int)>() == 0);
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assert(f.target<A>() == 0);
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assert(f.target<int(*)(int)>() == 0);
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}
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#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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}
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