Making a compiler.

This is a discussion on Making a compiler. within the C++ Programming forums, part of the General Programming Boards category; Originally posted by Perica Hey, the only one that worked is the one that Magos wrote, i use MS VC++ ...

  1. #16
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    Originally posted by Perica
    Hey,

    the only one that worked is the one that Magos wrote, i use MS VC++ 6 by the way.

    But i got a question, how come when you do strcmp, do you check if the strings are equall to 0??
    If the strings are equal, strcmp returns 0. If the first string is "larger" than the second, strcmp returns a positive integer (showing which element that differs). If the first string is "smaller" than the second, strcmp returns a negative integer (showing which element that differs, you have to use abs() on this since its negative).
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  2. #17
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    thanks,

    now, what is a parser?

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    Parsing is a set of techniques for going from a grammer
    to a runnable language. There are programs that
    do this automatically http://dinosaur.compilertools.net/

  4. #19
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    Perica do not ever think of even making a compiler cuz it is gona take you forever (ie: about 3 - 5 years).
    But if you still want to, then learn the basic concept of C or C++ (C++ prefered), and then move up the difficulty ladder. Then some day you will know by yourself that if you are able to make a compiler (and that day is really really far).


    I am not discouraging you but... well...

  5. #20
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    compilers are easy. comedy is difficult.
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    I don't care how long it takes,

    But where do i start?

  7. #22
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    You can use LEX and YACC to build your own compiler.

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