std::filesystem::is_empty
From cppreference.com
< cpp | filesystem
Defined in header
<filesystem>
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bool is_empty( const std::filesystem::path& p );
bool is_empty( const std::filesystem::path& p, std::error_code& ec ); |
(since C++17) | |
Checks whether the given path refers to an empty file or directory.
Contents |
[edit] Parameters
p | - | path to examine |
ec | - | error code to modify in case of error |
[edit] Return value
true if the file indicated by p
or if the type indicated s
refers to an empty file or directory, false otherwise. The non-throwing overload returns false if an error occurs.
[edit] Exceptions
The overload that does not take a std::error_code& parameter throws filesystem_error on underlying OS API errors, constructed withp
as the first argument and the OS error code as the error code argument. std::bad_alloc may be thrown if memory allocation fails. The overload taking a std::error_code& parameter sets it to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur. This overload has
noexcept specification:
noexcept
[edit] Example
This section is incomplete Reason: no example |
[edit] See also
(C++17)(C++17)
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determines file attributes determines file attributes, checking the symlink target (function) |
(C++17)
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checks whether path refers to existing file system object (function) |