Help with tchar

This is a discussion on Help with tchar within the C++ Programming forums, part of the General Programming Boards category; I'm a Computer Science major at a small university that teaches C++. Recently I've started to do some research on ...

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    Help with tchar

    I'm a Computer Science major at a small university that teaches C++. Recently I've started to do some research on my own, because I don't believe my university is teaching me everthing I need to know and I came across tchar. What and how do you use tchar? I tried searching but I couldn't fine much information and when I tried to use tchar in a program I got undefined variable and usee I did include the header file tchar.h. Thanks for your help.

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    TCHAR is a macro that translates to wchar_t when the program is compiled for UNICODE and char when not. Its defined in tchar.h. A wchar_t is a UNICODE wide character designed to hold characters of most languages, such as English, Spanish, Chines, Japanese, etc. Characers of many of those languages cannot be represented in an 8-bit char, so UNICODE designed wchar_t, which may be defined as unsigned short on some operating systems or unsigned long on others. Google for UNICODE and you should find a lot of information.

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    Thanks but how would I go about using tchar? I'm really not sure about macros because I've never done anything with macros.

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    Registered User whiteflags's Avatar
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    You would still have to do some research (to find out how to use all the macros in tchar correctly) but macros in general work with the preprocessor directive #define MACRO_NAME value. You then can use the phrase MACRO_NAME through out your program. At compile-time the compiler substutes the text for the value.
    Last edited by whiteflags; 04-25-2006 at 10:54 PM.

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    Ok -- here's an example -- note the spelling and capatalization -- it is TCHAR, not tchar.
    Code:
    TCHAR hello[] = _TEXT("Hello World");

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    Quote Originally Posted by Ancient Dragon
    Ok -- here's an example -- note the spelling and capatalization -- it is TCHAR, not tchar.
    Code:
    TCHAR hello[] = _TEXT("Hello World");
    Thanks. I saw that example earlier on the web and it still gives me undefined. I've even copied and pasted the example.

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    Tropical Coder Darryl's Avatar
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    you need to include tchar.h

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    Quote Originally Posted by Darryl
    you need to include tchar.h
    Read man I did use the include tchar.h file. Sorry, but people who refuse to read a post just irritates me.

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    Quote Originally Posted by dnysveen
    Read man I did use the include tchar.h file. Sorry, but people who refuse to read a post just irritates me.

    well then try posting your program. people who complain without posting any code irritate me too.

    This works with VC++ 6.0, although TCHAR will be defined as char* unless _UNICODE is also defined before including tchar.h
    Code:
    #include <tchar.h>
    
    int main(int argc, char* argv[])
    {
    	TCHAR hello[] = _TEXT("Hello World");
    	return 0;
    }
    Last edited by Ancient Dragon; 04-26-2006 at 11:18 AM.

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    Quote Originally Posted by Ancient Dragon
    well then try posting your program. people who complain without posting any code irritate me too.

    This works with VC++ 6.0, although TCHAR will be defined as char* unless _UNICODE is also defined before including tchar.h
    Code:
    #include <tchar.h>
    
    int main(int argc, char* argv[])
    {
    	TCHAR hello[] = _TEXT("Hello World");
    	return 0;
    }
    I didn't post code because there was no code besides the code I posted. I used include file and then declared a TCHAR. Of course I used a main and return 0 but I didn't think you needed to see that

    Updated. I copied and pasted your code and its a no go. I'm using the borland compiler for C++

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    >>I'm using the borland compiler for C++

    well that pretty much sums up the problem -- throw that cr@p away . Check its tchar.h file and see if it needs some other macro defined, such as _UNICODE. The compiler's preprocessor may be ignoring tchar.h entirely.

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    Quote Originally Posted by Ancient Dragon
    >>I'm using the borland compiler for C++

    well that pretty much sums up the problem -- throw that cr@p away . Check its tchar.h file and see if it needs some other macro defined, such as _UNICODE. The compiler's preprocessor may be ignoring tchar.h entirely.
    What free complier would you suggest? I've never had any problems with the borland compiler. Is there a reason you think its crap, besides tchar?

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    There is nothing wrong with BC++ Ancient Dragon is being a bit bias. I would say that you do not need to concern yourself with wchar_t unless you are planning for your programming to used in mulitple languages.
    Woop?

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    Quote Originally Posted by dnysveen
    What free complier would you suggest? I've never had any problems with the borland compiler. Is there a reason you think its crap, besides tchar?
    You didn't answer my question (or statement) -- did you look at your copy of tchar.h to see why it doesn't recognize TCHAR macro?

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    Quote Originally Posted by Ancient Dragon
    You didn't answer my question (or statement) -- did you look at your copy of tchar.h to see why it doesn't recognize TCHAR macro?
    I didn't look at my tchar.h file because I haven't had the chance, I'm sorry its been less than a day since you asked and I'm studying for files.

    I'm interested in tchar because I want to get a job with Microsoft. I've been doing a lot of research and watched a Microsoft recruiting video and in their interview question they expected the person to know how to use tchar.

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