std::filesystem::is_other
Defined in header <filesystem> | ? | ? |
|---|---|---|
bool is_other( std::filesystem::file_status s ); | (1) | (since C++17) |
bool is_other( const std::filesystem::path& p ); bool is_other( const std::filesystem::path& p, std::error_code& ec ); | (2) | (since C++17) |
检查给定的文件状态或路径是否与类型文件相对应。其他类型。也就是说，该文件存在，但既不是常规文件，也不是目录，也不是符号链接。
1%29相当于exists(s) && !is_regular_file(s) && !is_directory(s) && !is_symlink(s)...
2%29相当于is_other(status(p))或is_other(status(p, ec))分别。
参数
s | - | file status to check |
|---|---|---|
p | - | path to examine |
ec | - | error code to store the error status to |
返回值
true如果由p或者如果所指示的类型s引用非常规文件、目录或符号链接的文件，false否则。非抛出重载返回。false如果发生错误。
例外
1%29
noexcept规格：
noexcept
2%29不占用std::error_code&参数抛文件系统[医]误差关于基础OS API错误，使用p作为第一个参数和操作系统错误代码作为错误代码参数。std::bad_alloc如果内存分配失败，则可能引发。过载std::error_code&参数，如果OSAPI调用失败，则将其设置为OSAPI错误代码，并执行ec.clear()如果没有错误发生。这个过载
noexcept规格：
noexcept
例
另见
statussymlink_status (C++17)(C++17) | determines file attributesdetermines file attributes, checking the symlink target (function) |
|---|---|
file_status (C++17) | represents file type and permissions (class) |
status_known (C++17) | checks whether file status is known (function) |
is_block_file (C++17) | checks whether the given path refers to block device (function) |
is_character_file (C++17) | checks whether the given path refers to a character device (function) |
is_directory (C++17) | checks whether the given path refers to a directory (function) |
is_fifo (C++17) | checks whether the given path refers to a named pipe (function) |
is_regular_file (C++17) | checks whether the argument refers to a regular file (function) |
is_socket (C++17) | checks whether the argument refers to a named IPC socket (function) |
is_symlink (C++17) | checks whether the argument refers to a symbolic link (function) |
exists (C++17) | checks whether path refers to existing file system object (function) |
statussymlink_status | status 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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