std::experimental::filesystem::file_size

 

C++

Language

Standard library headers

Concepts

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

 

Filesystem library

Template:cpp/experimental/fs/navbar content

 

Defined in header <experimental/filesystem>
uintmax_t file_size( const path& p );	(1)	(filesystem TS)
uintmax_t file_size( const path& p, error_code& ec );	(2)	(filesystem TS)

Returns the size of a regular file. If p does not resolve to a regular file, returns -1.

The second version sets ec to an appropriate error code if an error occurs. Otherwise, ec is cleared with a call to ec.clear().

Parameters

p	-	path to the regular file
ec	-	error code to modify in case of error

Return value

The size of the file or -1 on error.

Exceptions

1) filesystem_error if an error occurs. The exception object is constructed with p as an argument. The error code is set to an appropriate error code for the error that caused the failure.

2)

noexcept specification:  

noexcept