#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::e
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 { ...
资源管理:某些类(如std::unique_ptr)设计为非可拷贝的,以避免资源泄露或不必要的资源复制。 解决“use of deleted function”错误的一般方法 定义必要的拷贝构造函数或赋值操作符:如果类需要支持拷贝,确保提供了正确的拷贝构造函数和赋值操作符。 使用移动语义:如果类支持移动但不支持拷贝,考虑使用移动构造函数和移动...
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...
unique_ptr<Song> song2 = std::move(song); // Obtain unique_ptr from function that returns by value. auto song3 = SongFactory(L"Michael Jackson", L"Beat It"); } These examples demonstrate this basic characteristic of unique_ptr: it can be moved, but not copied. "Moving" transfers ow...
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:...
case2:puts("Result deleted"); result.reset();return; It callsstd::unique_ptr<Request>::reset, which destructs theRequestand frees it. So we can totally control the object lifetime of Request objects. 4. "Clear results history" case4:puts("All saved results cleared"); results.clear();...
longer needed. they reduce the risk of memory leaks and dangling pointers by taking ownership of a dynamically given resource and ensuring it is properly released. examples include `std::unique_ptr`, `std::shared_ptr`, and `std::weak_ptr` in the c++ standard library. looking for a great...
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...