| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <functional> |
| |
| // class function<R(ArgTypes...)> |
| |
| // template<class A> function(allocator_arg_t, const A&, const function&); |
| |
| |
| #include <functional> |
| #include <cassert> |
| |
| #include "min_allocator.h" |
| #include "test_allocator.h" |
| #include "count_new.hpp" |
| #include "../function_types.h" |
| |
| class DummyClass {}; |
| |
| template <class FuncType, class AllocType> |
| void test_FunctionObject(AllocType& alloc) |
| { |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| { |
| // Construct function from FunctionObject. |
| std::function<FuncType> f = FunctionObject(); |
| assert(FunctionObject::count == 1); |
| assert(globalMemCounter.checkOutstandingNewEq(1)); |
| assert(f.template target<FunctionObject>()); |
| assert(f.template target<FuncType>() == 0); |
| assert(f.template target<FuncType*>() == 0); |
| // Copy function with allocator |
| std::function<FuncType> f2(std::allocator_arg, alloc, f); |
| assert(FunctionObject::count == 2); |
| assert(globalMemCounter.checkOutstandingNewEq(2)); |
| assert(f2.template target<FunctionObject>()); |
| assert(f2.template target<FuncType>() == 0); |
| assert(f2.template target<FuncType*>() == 0); |
| } |
| assert(FunctionObject::count == 0); |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| } |
| |
| template <class FuncType, class AllocType> |
| void test_FreeFunction(AllocType& alloc) |
| { |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| { |
| // Construct function from function pointer. |
| FuncType* target = &FreeFunction; |
| std::function<FuncType> f = target; |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| assert(f.template target<FuncType*>()); |
| assert(*f.template target<FuncType*>() == target); |
| assert(f.template target<FuncType>() == 0); |
| // Copy function with allocator |
| std::function<FuncType> f2(std::allocator_arg, alloc, f); |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| assert(f2.template target<FuncType*>()); |
| assert(*f2.template target<FuncType*>() == target); |
| assert(f2.template target<FuncType>() == 0); |
| } |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| } |
| |
| template <class TargetType, class FuncType, class AllocType> |
| void test_MemFunClass(AllocType& alloc) |
| { |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| { |
| // Construct function from function pointer. |
| TargetType target = &MemFunClass::foo; |
| std::function<FuncType> f = target; |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| assert(f.template target<TargetType>()); |
| assert(*f.template target<TargetType>() == target); |
| assert(f.template target<FuncType*>() == 0); |
| // Copy function with allocator |
| std::function<FuncType> f2(std::allocator_arg, alloc, f); |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| assert(f2.template target<TargetType>()); |
| assert(*f2.template target<TargetType>() == target); |
| assert(f2.template target<FuncType*>() == 0); |
| } |
| assert(globalMemCounter.checkOutstandingNewEq(0)); |
| } |
| |
| template <class Alloc> |
| void test_for_alloc(Alloc& alloc) |
| { |
| // Large FunctionObject -- Allocation should occur |
| test_FunctionObject<int()>(alloc); |
| test_FunctionObject<int(int)>(alloc); |
| test_FunctionObject<int(int, int)>(alloc); |
| test_FunctionObject<int(int, int, int)>(alloc); |
| // Free function -- No allocation should occur |
| test_FreeFunction<int()>(alloc); |
| test_FreeFunction<int(int)>(alloc); |
| test_FreeFunction<int(int, int)>(alloc); |
| test_FreeFunction<int(int, int, int)>(alloc); |
| // Member function -- No allocation should occur. |
| test_MemFunClass<int(MemFunClass::*)() const, int(MemFunClass&)>(alloc); |
| test_MemFunClass<int(MemFunClass::*)(int) const, int(MemFunClass&, int)>(alloc); |
| test_MemFunClass<int(MemFunClass::*)(int, int) const, int(MemFunClass&, int, int)>(alloc); |
| } |
| |
| int main() |
| { |
| { |
| bare_allocator<DummyClass> alloc; |
| test_for_alloc(alloc); |
| } |
| { |
| non_default_test_allocator<DummyClass> alloc(42); |
| test_for_alloc(alloc); |
| } |
| } |