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std::filesystem::status_known

STD：：文件系统：：Status[医]已知

Defined in header ​​
bool status_known( std::filesystem::file_status s (1)(since C++17)

检查给定文件状态是否已知，等效于s.type() != file_type::none...

参数

s-file status to check

返回值

true如果给定的文件状态是未知的文件状态。

例外

noexcept规格：

noexcept

注记

不管名称如何，函数都会检查file_type::none%28表示错误发生在%29，而不是file_type::unknown%28表示文件存在，但其类型不能确定为%29。

另见

statussymlink_status (C++17)(C++17)determines file attributesdetermines file attributes, checking the symlink target (function)
statussymlink_statusstatus of the file designated by this directory entrysymlink_status of the file designated by this directory entry (public member function of std::filesystem::directory_entry)

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