get_deleter 함수

Get deleter from shared_ptr.

template<class D, class Ty>
    D *get_deleter(const shared_ptr<Ty>& sp);

매개 변수

• D
  제거자 형식입니다.

• Ty
  공유 포인터에 제어되는 형식입니다.

• Other
  The shared pointer.

설명

The template function returns a pointer to the deleter of type D that belongs to the shared_ptr 클래스 object sp. If sp has no deleter or if its deleter is not of type D the function returns 0.

예제

 

// std_tr1__memory__get_deleter.cpp 
// compile with: /EHsc 
#include <memory> 
#include <iostream> 
 
struct base 
    { 
    int val; 
    }; 
 
struct deleter 
    { 
    void operator()(base *p) 
        { 
        delete p; 
        } 
    }; 
 
int main() 
    { 
    std::shared_ptr<base> sp0(new base); 
 
    sp0->val = 3; 
    std::cout << "get_deleter(sp0) != 0 == " << std::boolalpha 
        << (std::get_deleter<deleter>(sp0) != 0) << std::endl; 
 
    std::shared_ptr<base> sp1(new base, deleter()); 
 
    sp0->val = 3; 
    std::cout << "get_deleter(sp1) != 0 == " << std::boolalpha 
        << (std::get_deleter<deleter>(sp1) != 0) << std::endl; 
 
    return (0); 
    } 
 

요구 사항

헤더 <memory>

네임스페이스: std

참고 항목

참조

shared_ptr 클래스