Defined in header
<filesystem> | ||
---|---|---|
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.
p | - | path to examine |
ec | - | error code to modify in case of error |
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.
std::error_code&
parameter throws filesystem_error on underlying OS API errors, constructed with p
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
(C++17)(C++17)
| determines file attributes determines file attributes, checking the symlink target (function) |
(C++17)
| checks whether path refers to existing file system object (function) |
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