RE: [Dev-C++] What is the scope of preprocessor directives???

[Ioannis V. <no...@ho...>]

> -----Original Message-----
> From: dev...@li... 
> [mailto:dev...@li...] On Behalf 
> Of David McKen
> Sent: Tuesday, April 09, 2002 6:43 AM
> To: dev...@li...
> Subject: [Dev-C++] What is the scope of preprocessor directives???
> 
> 
> What is the scope of a preprocessor directive?

The scope of the rest of its file and the files in which its file is
included. Or till one other directive that cancels it.




> 
> For example if I put a #define what statements are affected by it?
> 
> Also if I have a *.h file that has a set of #defines in it will they
> affect other files in the project or am I restricted to the command
> line for that

Yes they can if you #include the file in other files. But you must try
hardly to not happen that. So use large & ugly names for macros and if
possible #undef them at the end of their use.



Ioannis

* Ioannis Vranos
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