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std::experimental::filesystem::path::string,wstring,u8string,...

From cppreference.com
< cpp‎ | experimental‎ | fs‎ | path
 
 
Technical specifications
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)
Concepts (concepts TS)
Ranges (ranges TS)
Mathematical special functions (special functions TR)
 
 
 
template< class CharT, class Traits = std::char_traits<CharT>,

          class Alloc = std::allocator<CharT> >
std::basic_string<CharT,Traits,Alloc>

    string( const Alloc& a = Alloc() ) const;
(1) (filesystem TS)
(2) (filesystem TS)
std::string string() const;
std::wstring wstring() const;
std::string u8string() const;
std::u16string u16string() const;
std::u32string u32string() const;

Returns the internal pathname in native pathname format, converted to specific string type. Conversion, if any, is specified in todo.

1) All memory allocations are performed by a.
2) The encoding in the case of u8string() is always UTF-8.

Contents

[edit] Parameters

(none)

[edit] Return value

The internal pathname in native pathname format, converted to specified string type.

[edit] Exceptions

(none)

[edit] Example

#include <cstdio>
#include <clocale>
#include <fstream>
#include <iostream>
#include <experimental/filesystem>
namespace fs = std::experimental::filesystem;
 
int main()
{
    std::setlocale(LC_ALL, "en_US.utf8");
    std::locale::global(std::locale("en_US.utf8"));
 
    fs::path p = fs::u8path(u8"要らない.txt");
 
    // native string representation can be used with OS APIs
    std::ofstream(p) << "File contents"; // this uses operator string()
    if(std::FILE* f = std::fopen(p.c_str(), "r")) {
        int ch;
        while((ch=fgetc(f))!= EOF) putchar(ch);
        std::fclose(f);
    }
 
    // multibyte and wide representation can be used for output
    std::cout.imbue(std::locale());
    std::cout << "\nFile name in narrow multibyte encoding: "
              << p.string() << '\n';
 
    std::wcerr.imbue(std::locale());
    std::wcerr << "File name in wide encoding: "
               << p.wstring() << '\n';
 
    fs::remove(p);
}

Output:

File contents
File name in narrow multibyte encoding: 要らない.txt
File name in wide encoding: 要らない.txt

[edit] See also

returns the path in generic pathname format converted to a string
(public member function) [edit]