Re: Making a partial C compiler

jyrixx@astro.temple.edu (Andrew Gwozdziewycz)
3 Jun 2003 00:47:13 -0400

          From comp.compilers

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From: jyrixx@astro.temple.edu (Andrew Gwozdziewycz)
Newsgroups: comp.compilers
Date: 3 Jun 2003 00:47:13 -0400
Organization: http://groups.google.com/
References: 03-05-139 03-05-202
Keywords: C
Posted-Date: 03 Jun 2003 00:47:13 EDT

> 4. Dynamic "linking" by making exact function calls to be resolved at
> runtime by using function pointers.
>
> I'm hoping/thinking it's possible to solve some of these wishes by
> using macros (#define (x) ...) and since I am doing it on my own code
> I don't need to care about every possible situation that can arrise
> because I know my own coding style.




if you were to create a "key" file basically a header file, with macro
names, it would be easy like you said.


however, you would have to either create a symbol table (for duplicate
macro names) or create a new macro for every call, (which may even be
better).


so in code like this
...
      printf("blah");
      printf("blah");
...


this gets generated:


      X_dkkdkai__kdkiwiw("blah");
      Xkdkkdkdkdk_("blah");


and a new include file gets generated such as


#define X_dkkdkai__kdkiwiw printf


However, you almost certainly will have to gaurantee that your new
names won't collide with ANYTHING which would most likely mean, being
  > 15 characters and included multiple '_'+ since usually things are
written get_name. However, this whole idea creates a problem in that
you must keep the key seperate, or it has no affect at all.


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