应该使用delete[]}// 正确做法voidcorrectFunction(){autoarray=std::make_unique<int[]>(1000);// 自动正确释放}异常安全：资源获取即初始化(RAII)classResource{public:Resource(){std::cout<<"资源获取"<<std::endl;}~Resource(){std::cout<<"资源释放"<<std::endl;}};// 不安全的方式voidunsafe...
Our prof also said that we don't need to turn it into a vector or do some weird modifications in our code and said we only need to use the "delete" command, 1 2 3 4 5 6 7 8 9 Grocery* GroceryList_fin[k];// initialize elements of array// delete "a block", "simply" with ...
#include<cstdlib>#include<iomanip>#include<iostream>#include<random>#include<vector>using std::cout;using std::endl;using std::setw;using std::vector;intmain(){auto*vp=new vector<int>{0,1,2,3,4,5,6,7,8,9};for(constauto&item:*vp){cout<<item<<", ";}cout<<endl;delete vp;retur...
我这就给你写一段，运行一下：qinjin@BlueBerry:~$ vi main.cpp int main() { int* p =...
#include<iostream>structMyClass{MyClass(){std::cout<<"It is a MyClass() constructed\n";}~MyClass(){std::cout<<"It is a MyClass() destroyed\n";}};intmain(){MyClass*pt=new(std::nothrow)MyClass;deletept;return0;} Output
In your Delete string your syntax is wrong. Use a vector to store strings. Then get the event to be deleted and iterate through the vector of strings and find the event. Then use the erase function that comes with the vector class. ...
PALLOCATE_COMMON_BUFFER_VECTOR callback function PALLOCATE_COMMON_BUFFER_WITH_BOUNDS callback function PALLOCATE_DOMAIN_COMMON_BUFFER callback function PBUILD_MDL_FROM_SCATTER_GATHER_LIST callback function PBUILD_SCATTER_GATHER_LIST callback function PBUILD_SCATTER_GATHER_LIST_EX callback function PCA...
不太走运,它要求指明DeleteObject删除的对象类型(这里是:Widget )。令人讨厌,vwp是一个vector<Widget*>,因此DeteleObject删除的当然是Widget指针!这种冗余不只是令人讨厌,因为它可能导致难以检查的bug出现。试想一下,例如,有人故意决定要从string继承: class SpecialString: public string { ...}; ...
"In template: call to '__builtin_operator_delete' selects non-usual deallocation function" I'm not sure what's causing it, but it seems to happen more often in code that calls functions that return a std::vector, although I've seen it pop-...
std::unique_ptr< int, function<void(int*)> > ptr1(new int[100], [](int*p)->void { cout << "Delete int[]" << endl; delete []p; } ); std::unique_ptr< FILE, function<void(FILE*)> > ptr2(fopen("data.txt","w"), ...