shared_ptr::reset

소유한 리소스를 대체합니다.

void reset();
template<class Other>
    void reset(Other *ptr;);
template<class Other, class D>
    void reset(Other *ptr, D dtor);
template<class Other, class D, class A>
    void reset(Other *ptr, D dtor, A alloc);

매개 변수

• Other
  인수 포인터에 제어되는 형식입니다.

• D
  제거자 형식입니다.

• ptr
  복사 포인터입니다.

• dtor
  The deleter to copy.

• A
  할당자 형식입니다.

• alloc
  The allocator to copy.

설명

The operators all decrement the reference count for the resource currently owned by *this and assign ownership of the resource named by the operand sequence to *this. If the reference count falls to zero, the resource is released. If an operator fails it leaves *this unchanged.

예제

 

// std_tr1__memory__shared_ptr_reset.cpp 
// compile with: /EHsc 
#include <memory> 
#include <iostream> 
 
struct deleter 
    { 
    void operator()(int *p) 
        { 
        delete p; 
        } 
    }; 
 
int main() 
    { 
    std::shared_ptr<int> sp(new int(5)); 
 
    std::cout << "*sp == " << std::boolalpha 
        << *sp << std::endl; 
 
    sp.reset(); 
    std::cout << "(bool)sp == " << std::boolalpha 
        << (bool)sp << std::endl; 
 
    sp.reset(new int(10)); 
    std::cout << "*sp == " << std::boolalpha 
        << *sp << std::endl; 
 
    sp.reset(new int(15), deleter()); 
    std::cout << "*sp == " << std::boolalpha 
        << *sp << std::endl; 
 
    return (0); 
    } 
 

요구 사항

헤더 <memory>

네임스페이스: std

참고 항목

참조

shared_ptr 클래스

shared_ptr::operator=