多个非同源的shared_ptr管理对象引起double free 有多个不同源的shared_ptr管理对象时会出现多次释放对象,这里不同源是指多组间不是通过拷贝构造、复制等手段而来的,即几组shared_ptr是独立声明的。 #include<iostream> #include<pthread.h> #include<unistd.h> #include<boost/enable_shared_from_this.hpp> #inc...
~test //同一对象析构了两次 *** glibc detected *** ./two_shared_ptr_1: double free or corruption (fasttop): 0x000000000080b010 *** //double free 采用继承enable_shared_from_this,然后使用shared_from_this()可以解决这个问题 #include<iostream> #include<pthread.h> #include<unistd.h> #include...
shared_ptr<A>(this) 若以上述形式构造,则会遭遇 double-free相关问题,为此std::enable_shared_from_this, 提供了如下接口 shared_from_this 生成一个拥有*this所有权的智能指针 std::enable_shared_from_this的简单使用可参考如下 class A : public std::enable_shared_from_this<A> { public: void func...
cout <<"*pint is "<< *pint << endl; 不要手动回收智能指针get返回的内置指针,要交给智能指针自己回收即可,否则会造成double free或者 使用智能指针产生崩溃等问题。 也不要用get()返回得内置指针初始化另一个智能指针,因为两个智能指针引用一个内置指针会出现问题,比如一个释放了另一个不知道就会导致崩溃等...
shared_ptr 可以用来自动管理实例(内存) 的生命周期,但是如果对同一个实例(内存) 创建多个 shared_ptr 则可能引起 double free 的问题。 Demo: AI检测代码解析 #include <memory> #include <string> #include <iostream> using namespace std; class A{ ...
*** glibc detected *** ./two_shared_ptr_1: double free or corruption (fasttop): 0x000000000080b010 *** //double free 采用继承enable_shared_from_this,然后使用shared_from_this()可以解决这个问题 #include<iostream>#include<pthread.h>#include<unistd.h>#include<boost/enable_shared_from_this.hp...
leaving the pointer in the caller's 'shared_ptr' pointing at released memory. When the caller'sshared_ptrthen goes out of scope, a double-free results. Only use this option when the contract between the caller and callee clearly specifies that the caller retains ownership of theshared_ptrlif...
{ void operator()(T* ptr) { cout << "delete[]" << ptr << endl; delete[] ptr; } }; int main() { FreeFunc<int> freeFunc; shared_ptr<int> sp1((int*)malloc(4), freeFunc); DeleteArrayFunc<int> deleteArrayFunc; shared_ptr<int> sp2((int*)malloc(4), deleteArrayFunc); ...
Feel free to reopen this ticket if it doesn't. Sorry, something went wrong. wjakobclosed this ascompletedOct 31, 2016 Copy link Member wjakobcommentedOct 31, 2016 (and in that case, please submit a complete and self contained testcase as required per CONTRIBUTING.md) ...
问如何在数组中使用shared_ptr和make_shared？ENIf you first make an object and then give it to ...