Thread: Turning off ANSI in compiler

  1. #1
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    Turning off ANSI in compiler

    Does anyone know how to turn off ANSI compatibility in Microsoft Visual C++ 6.0 Professional Edition. I'm trying to use



    fprintf(stdprn,"blah blah");

    but my c programming book said ANSI needed to be turned off on the compiler for stdprn to work. Can anyone direct me on how to do it ?

  2. #2
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    Compilers will generally use extensions by default, relying on a switch to engage pure ANSI conformance. I believe that the switch in Visual Studio is /Za to enable and /Ze to disable. However, if Visual Studio doesn't define stdprn (and I don't think it does) then enabling extensions will not make your code compile.

  3. #3
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    Where do I type /Za in at? Do i just press all three at the same time like ctrl>alt>delete??

    How can I get the stream stdprn to compile then?

  4. #4
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    Since you probably aren't compiling from the command line, you'll probably find the command line settings under Projects->Settings. As I said, I don't think that Visual Studio defines the stdprn stream, so you'll have to do it yourself by opening a FILE* as "LPT1", "LPT1:", "PRN", or some other variation.

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