std::experimental:: in_place
From cppreference.net
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in_place
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定义于头文件
<experimental/optional>
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||
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constexpr
in_place_t in_place
{
}
;
|
(库基础技术规范) | |
std::experimental::in_place
是一个类型为
std::
experimental
::
in_place_t
的常量，用于消除构造函数和成员函数重载的歧义，这些函数接受参数（可能为参数包）以进行某些值的原位构造。
参见
|
原位构造标签
(标签) |
|
|
(C++17)
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可能持有或未持有对象的包装器
(类模板) |