在C++中,std::unique_ptr 不支持拷贝构造函数和拷贝赋值操作符,因此会出现“use of deleted function ‘std::unique_ptr<_tp, _dp>::unique_ptr(const std::unique_ptr<_tp, _dp>&)’”的错误。 std::unique_ptr 是一种独占所有权的智能指针,这意味着在任何时候,只有一个 std::unique_ptr 实例可以拥...
#include<memory>#include<iostream>//用于测试错误的类classTestClass{public:intvalue_=0;};//用来测试传入unique_ptr的函数voidtestPtrFunction(std::unique_ptr<TestClass>ptrHandle){//输出指针里面的内容std::cout<<ptrHandle->value_<<std::endl;}intmain(){//新建一个智能指针std::unique_ptr<TestClas...
std::cout<<ptrHandle->value_<<std::endl; } int main() { //新建一个智能指针 TestClass *testPtr(new TestClass()); //设置里面的数值 testPtr->value_=10; testPtrFunction(std::unique_ptr<TestClass>(testPtr)); return 0; }修改方案3:用std::move把unique_ptr移交给函数里面的参数,但这样...
Use of deleted function unique_ptr::unique_ptr Sep 18, 2013 at 1:49am ThemePark (28) I have the following header and class file in a project: 123456789101112131415161718 #ifndef PATTERN_HPP_ #define PATTERN_HPP_ #include <memory> #include <list> using namespace std; namespace pub { ...
问为什么我收到编译错误"use of deleted 'std::unique_ptr ...“ENvs低版本转高版本，std::getline...
(std::unique_ptr<Qux, std::default_delete<Qux> >)>}]’ main.cpp:49:18: required from here /home/me/.conan/data/fruit/3.6.0/_/_/package/99fe6edc64c98b6ead2c33cb2b0bf89b59d7f7ce/include/fruit/impl/component_functors.defn.h:405:58: error: use of deleted function ‘std::unique...
(L"Mr. Children",L"Namonaki Uta");// Use the unique_ptr.vector<wstring> titles = { song->title };// Move raw pointer from one unique_ptr to another.unique_ptr<Song> song2 =std::move(song);// Obtain unique_ptr from function that returns by value.autosong3 = SongFactory(L"...
std::unique_lock<butter::shared_mutex> lock(installMutex_); std::unique_lock lock(installMutex_); animationDriver_ = nullptr; scheduler_ = nullptr; mountingManager_ = nullptr; @@ -476,7 +476,7 @@ void Binding::uninstallFabricUIManager() { std::shared_ptr<FabricMountingManager> Binding:...
How to create an instance of shared_ptr? The below-mentioned example shows how to create instances of a shared pointer. /* Object ptr owns dynamically allocated int */ std::shared_ptr<int>ptr(newint); Now ptr is owing to the memory of unnamed integer object. Usingptryou can access this...
Item 18: Usestd::unique_ptrfor exclusive-ownership resource management. Item 19: Usestd::shared_ptrfor shared-ownership resource management. Item 20: Usestd::weak_ptrforstd::shared_ptrlike pointers that can dangle. Item 21: Preferstd::make_uniqueandstd::make_sharedto direct use ofnew. ...