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std::unique_ptr::operator*

性病：：独特[医]PTR：：操作员%2A

typename std::add_lvalue_reference::type operator*() const;(1)(since C++11)
pointer operator->() const;(2)(since C++11)

operator*和operator->提供对*this...

如果get() == nullptr...

参数

%280%29

返回值

1%29返回由*this，相当于*get()...

2%29返回指向*this，即.get()...

例外

1%5月29日投掷，例如pointer定义抛出operator*2%29。

noexcept规格：

noexcept

例

二次

#include <iostream>
#include <memory>
 
struct Foo {
    void bar() { std::cout << "Foo::bar\n"; }
};
 
void f(const Foo& foo) 
{
    std::cout << "f(const Foo&)\n";
}
 
int main() 
{
    std::unique_ptr<Foo> ptr(new Foo
 
    ptr->bar(
    f(*ptr
}

二次

产出：

二次

Foo::bar
f(const Foo&)

二次

另见

getreturns a pointer to the managed object (public member function)

 © cppreference.com

在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。

http：//en.cppreference.com/w/cpp/Memory/UNIQUE[医]PTR/算子[医]星[医]

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