std::experimental::filesystem::path::operator=

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Diagnostics library

Memory management library

Metaprogramming library (C++11)

General utilities library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Strings library

Text processing library

Numerics library

Date and time library

Input/output library

Filesystem library (C++17)

Concurrency support library (C++11)

Execution control library (C++26)

Technical specifications

Symbols index

External libraries

 

Experimental

Technical Specification

Filesystem library (filesystem TS)

Library fundamentals (library fundamentals TS)

Library fundamentals 2 (library fundamentals TS v2)

Library fundamentals 3 (library fundamentals TS v3)

Extensions for parallelism (parallelism TS)

Extensions for parallelism 2 (parallelism TS v2)

Extensions for concurrency (concurrency TS)

Extensions for concurrency 2 (concurrency TS v2)

Concepts (concepts TS)

Ranges (ranges TS)

Reflection (reflection TS)

Mathematical special functions (special functions TR)

Experimental Non-TS

Pattern Matching

Linear Algebra

std::execution

Contracts

2D Graphics

 

Filesystem library

Classes
filesystem::path filesystem::filesystem_error filesystem::directory_entry filesystem::directory_iterator filesystem::recursive_directory_iterator filesystem::file_status	filesystem::space_info filesystem::file_type filesystem::perms filesystem::copy_options filesystem::directory_options filesystem::file_time_type
Functions
filesystem::absolute filesystem::system_complete filesystem::canonical filesystem::copy filesystem::copy_file filesystem::copy_symlink filesystem::create_directory filesystem::create_directories filesystem::create_hard_link filesystem::create_symlink filesystem::create_directory_symlink filesystem::current_path filesystem::exists filesystem::equivalent	filesystem::file_size filesystem::hard_link_count filesystem::last_write_time filesystem::permissions filesystem::read_symlink filesystem::remove filesystem::remove_all filesystem::rename filesystem::resize_file filesystem::space filesystem::status filesystem::symlink_status filesystem::temp_directory_path
File types
filesystem::is_block_file filesystem::is_character_file filesystem::is_directory filesystem::is_empty filesystem::status_known	filesystem::is_fifo filesystem::is_other filesystem::is_regular_file filesystem::is_socket filesystem::is_symlink

 

path

Member functions
path::path path::~path path::operator= path::assign path::appendoperator /= path::concatoperator += path::clear path::make_preferred path::remove_filename path::replace_filename path::replace_extension path::swap path::compare	path::c_strpath::nativeoperator string_type path::stringpath::u8stringpath::u16stringpath::u32stringpath::wstring path::generic_stringpath::generic_u8stringpath::generic_u16stringpath::generic_u32stringpath::generic_wstring path::beginpath::end
Path decomposition
path::root_name path::root_directory path::root_path path::relative_path path::parent_path path::filename path::stem path::extension path::empty	path::has_root_pathpath::has_root_namepath::has_root_directorypath::has_relative_pathpath::has_parent_pathpath::has_filenamepath::has_stempath::has_extension path::is_absolutepath::is_relative
Non-member functions
swap(path)
operator==operator!=operator<operator<=operator>operator>=
operator/
operator<<operator>>
u8path

 

path& operator=( const path& p );	(1)	(filesystem TS)
path& operator=( path&& p );	(2)	(filesystem TS)
template< class Source > path& operator=( const Source& source );	(3)	(filesystem TS)

1) Replaces the contents of *this with a copy of the contents of p.

2) Replaces the contents of *this with p, possibly using move semantics: p is left in valid, but unspecified state.

3) Replaces the contents of *this with a new path value constructed from source as if by overload (4) of the path constructor. Equivalent to assign(source).

Parameters

p	-	a path to assign
source	-	a std::basic_string, pointer to a null-terminated character/wide character string, or an input iterator that points to a null-terminated character/wide character sequence. The character type must be one of char, char16_t, char32_t, wchar_t

Return value

*this

Exceptions

1) (none)

2)

noexcept specification:  

noexcept

  

3) (none)

Example

Run this code

#include <experimental/filesystem>
namespace fs = std::experimental::filesystem;
 
int main()
{
    fs::path p = "C:/users/abcdef/AppData/Local";
    p = p / "Temp"; / move assignment
    const wchar_t* wstr = L"D:/猫.txt";
    p = wstr; / assignment from a source
}

See also

assign	assigns contents (public member function)
(constructor)	constructs a path (public member function)

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