Declaration

template <class Type, class CharT>
std::basic_string<Type> code_convert(const std::basic_string<CharT>& src,
    cost std::codecvt<wchar_t, char, mbstate_t>& cvt);

template <class Type, class CharT>
std::basic_string<Type> code_convert(const std::basic_string<CharT>& src,
    const std::locale& loc = std::locale());

template <class Type, class Source>
std::basic_string<Type> code_convert(const Source* src,
    const std::codecvt<wchar_t, char, mbstate_t>& cvt);

template <class Type, class Source>
std::basic_string<Type> code_convert(const Source* src,
    const std::locale& loc = std::locale());

Overview

code_convert は，ナロー文字 (char) <-> ワイド文字 (wchar_t) の相互変換を行うためのクラスです．std::basic_string<CharT> から std::basic_string<Type>，または Source* から std::basic_string<Type> への変換を試みます．実際の変換処理は，std::codecvt<wchar_t, char, mbstate_t> に依存します．

Example

example_code_convert.cpp

#ifndef CLX_USE_WCHAR
#define CLX_USE_WCHAR
#endif // CLX_USE_WCHAR

#include <iostream>
#include <string>
#include "clx/code_convert.h"

int main(int argc, char* argv[]) {
    try {
        std::cout.imbue(std::locale("japanese"));
        std::wcout.imbue(std::locale("japanese"));
        
        // char -> wchar_t
        std::string s = "はろーわーるど";
        std::wstring wcvt = clx::code_convert<wchar_t>(s, std::locale("japanese"));
        
        std::wcout << L"char -> wchar_t" << std::endl;
        std::wcout << L"-----" << std::endl;
        std::cout << "original: " << s << " (" << s.size() << ")" << std::endl;
        std::wcout << L"convert: " << wcvt << L" (" << wcvt.size() << L")"
            << std::endl;
        std::wcout << std::endl;
        
        // wchar_t -> char
        std::wstring ws = L"ハローワールド";
        std::string cvt = clx::code_convert<char>(ws, std::locale("japanese"));
        
        std::cout << "wchar_t -> char" << std::endl;
        std::cout << "-----" << std::endl;
        std::wcout << L"original: " << ws << L" (" << ws.size() << L")" << std::endl;
        std::cout << "convert: " << cvt << " (" << cvt.size() << ")" << std::endl;
    }
    catch (std::runtime_error& e) {
        std::cerr << e.what() << std::endl;
        std::exit(-1);
    }
    
    return 0;
}

Result
char -> wchar_t
-----
original: はろーわーるど (14)
convert: はろーわーるど (7)

wchar_t -> char
-----
original: ハローワールド (7)
convert: ハローワールド (14)

Declaration

Overview

Example

Referrences