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A TCHAR style header file for STL strings and streams

By , 11 Feb 2006
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Introduction

I had asked on the Visual C++ forum if there was a standard header file that would provide a way of declaring std::strings so that a single code source could be compiled in either ANSI or UNICODE builds without any changes, much in the same way tchar.h is used. The response I got back is that there is no standard way of doing this so I decided to write my own header file to accomplish this task.

The TSTL.H header file

The header file is a simple one that uses a series of typedefs to define new synonyms for some of the commonly used STL classes that use chars and wchar_ts. The idea being that you can now use new names wherever you would have previously had to use either one or the other of the standard names. For example, a piece of code may have been written:

#ifdef _UNICODE
   std::wostringstream stream;
   stream.setf(std::wios::fixed);
#else
   std::ostringstream stream;
   stream.setf(std::ios::fixed);
#endif

and can now be written:

std::tostringstream stream;
stream.setf(std::tios::fixed);

and it will compile in either ANSI or Unicode builds. The file is probably not complete as there may be other STL classes that I do not know about or did not think of that should be included in this file. If there are, let me know which ones and I can include them and update the file.

To use the file, simply include it in your precompiled header file (stdafx.h) or include it in any file that uses any of the STL string or stream classes. The file is listed here and it can be downloaded from the download link at the top of this article.

// tstl.h - header file for TCHAR equivalents of STL
//          string and stream classes
//
// Copyright (c) 2006 PJ Arends
//
// This file is provided "AS-IS". Use and/or abuse it
// in any way you feel fit.
// 
 
#pragma once

#include <string>
 
namespace std
{
#if defined UNICODE || defined _UNICODE
 
    typedef wstring         tstring;
 
    typedef wstringbuf      tstringbuf;
    typedef wstringstream   tstringstream;
    typedef wostringstream  tostringstream;
    typedef wistringstream  tistringstream;
 
    typedef wstreambuf      tstreambuf;
 
    typedef wistream        tistream;
    typedef wiostream       tiostream;
 
    typedef wostream        tostream;
 
    typedef wfilebuf        tfilebuf;
    typedef wfstream        tfstream;
    typedef wifstream       tifstream;
    typedef wofstream       tofstream;
 
    typedef wios            tios;
 
#   define tcerr            wcerr
#   define tcin             wcin
#   define tclog            wclog
#   define tcout            wcout
 
#else // defined UNICODE || defined _UNICODE
 
    typedef string          tstring;
 
    typedef stringbuf       tstringbuf;
    typedef stringstream    tstringstream;
    typedef ostringstream   tostringstream;
    typedef istringstream   tistringstream;
 
    typedef streambuf       tstreambuf;
 
    typedef istream         tistream;
    typedef iostream        tiostream;
 
    typedef ostream         tostream;
 
    typedef filebuf         tfilebuf;
    typedef fstream         tfstream;
    typedef ifstream        tifstream;
    typedef ofstream        tofstream;
 
    typedef ios             tios;
 
#   define tcerr            cerr
#   define tcin             cin
#   define tclog            clog
#   define tcout            cout
 
#endif // defined UNICODE || defined _UNICODE
} // namespace std

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

PJ Arends
President
Canada Canada
No Biography provided

Comments and Discussions

 
GeneralNot so sure about adding to the std namespace... how about this solution. PinmemberLudvik Jerabek26-Sep-09 10:25 
GeneralRe: Not so sure about adding to the std namespace... how about this solution. PinmemberStuart Dootson20-Oct-09 1:12 
Generalstd::string causes memory corruption on multi-processors PC Pinmemberana_v12329-Aug-07 21:24 
GeneralUseful, but Pinmembercozy dude15-Feb-06 0:17 
GeneralRe: Useful, but PinmemberPJ Arends15-Feb-06 5:17 
GeneralRe: Useful, but PinstaffNishant Sivakumar15-Feb-06 15:55 
GeneralRe: Useful, but PinmemberDavid Pritchard27-Mar-06 10:27 
GeneralNice. Just... PinmemberNemanja Trifunovic12-Feb-06 7:38 
... be sure to read this article[^] before diving into Unicode with C++ Standard Library.
 


My programming blahblahblah blog. If you ever find anything useful here, please let me know to remove it.
GeneralRe: Nice. Just... PinmemberPJ Arends12-Feb-06 14:54 
GeneralRe: Nice. Just... PinmemberNemanja Trifunovic13-Feb-06 4:47 
Generaltypedef vs #define PinstaffNishant Sivakumar12-Feb-06 3:18 
GeneralRe: typedef vs #define PinmemberRama Krishna Vavilala12-Feb-06 5:34 
GeneralRe: typedef vs #define PinstaffNishant Sivakumar12-Feb-06 5:41 
GeneralRe: typedef vs #define PinmemberPJ Arends12-Feb-06 6:11 
GeneralRe: typedef vs #define PinstaffNishant Sivakumar12-Feb-06 8:14 
GeneralRe: typedef vs #define PinmemberRama Krishna Vavilala12-Feb-06 6:12 
GeneralRe: typedef vs #define PinmemberAnders Dalvander12-Feb-06 21:18 
GeneralRe: typedef vs #define Pinmembertoxcct13-Feb-06 0:29 
GeneralRe: typedef vs #define PinmemberAnders Dalvander13-Feb-06 0:35 
GeneralRe: typedef vs #define Pinmembertoxcct13-Feb-06 0:38 
GeneralRe: typedef vs #define PinmemberPJ Arends13-Feb-06 6:43 
GeneralRe: typedef vs #define PinmemberLing, Xiao-li28-Feb-07 0:25 
GeneralSome Remarks PinmemberRoland Pibinger12-Feb-06 0:59 
GeneralRe: Some Remarks PinmemberPJ Arends12-Feb-06 6:33 

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