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Tuesday, June 24, 2008

Convert std::string to std::wstring

// std::string -> std::wstring
std::string s("string");
std::wstring ws;
ws.assign(s.begin(), s.end());

// std::wstring -> std::string
std::wstring ws(L"wstring");
std::string s;
s.assign(ws.begin(), ws.end());
at

13 comments:

  1. Anonymous2:46 PM

    Thanks a lot. It solves my problem.
    Changsong

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  2. The Observer11:23 AM

    Very neat code !! Solved my problem. Many Thanks

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  3. kizzx24:20 AM

    This causes problems with accented characters.

    For example, try converting "Música" from std::string to std::wstring

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  4. Anonymous5:30 PM

    obviously that wont work. You can only go from wstring to string if the wstring only contains ASCII characters

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  5. rmacapobre7:34 AM

    so how does one convert accented strings from multibyte to unicode?

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  6. Sabeesh6:47 AM

    Thanks it is working. But I create a std::string like this.

    std::string s("response_brücke");
    and convert it like this

    std::wstring ws;
    ws.assign(s.begin(), s.end());

    But the value of ws is not correct.
    How can we convert the value of "s" into "ws".

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  7. Mijalko7:08 AM

    This method is used only to convert string where characters are within ASCII character set. I don't know for method where characters like ü can be converted to something within ASCII character set. Maybe there is some third party library but I don't know.

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  8. Sabeesh7:53 AM

    Thanks, I got the solution

    std::wstringstream ws;
    ws << s.c_str();
    std::wstring sLogLevel = ws.str();

    ReplyDelete
  9. Unknown5:59 AM

    Thanks a lot. Nowhere else I found such clean and properly working solution. I found it very useful.

    ReplyDelete
  10. jespa00712:09 PM

    Thanks a lot. This solved my problem too!

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  11. Unknown2:47 PM

    Very good.

    A little bit more compact:

    // std::string -> std::wstring
    std::string s("string");
    std::wstring ws(s.begin(), s.end()); // uses a constructor! :-)

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  12. Maggat12:29 PM

    Searched a long time for this trying to convert nordic characters Å Ä Ö from string to wstring. This solved it!

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  13. Lisa Jones6:54 AM

    yes it is best command...go here

    ReplyDelete