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From: David Brown <david.brown@hesbynett.no>
Newsgroups: comp.lang.c
Subject: Re: Concatenated if and preprocessor
Date: Thu, 13 Mar 2025 16:55:16 +0100
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On 13/03/2025 16:44, pozz wrote:
> Consider this code:
> 
> if (cond1) {
> ...
> } else if (cond2) {
> ...
> } else if (cond3) {
> ...
> }
> 
> I want to activate every single if with a macro preprocessor. All the 
> combinations are possible: only the first, only the second, only the 
> third, the first and second... and so on.
> 
> What's the best method to have a clean code that is always compiled 
> without errors?

Could you give a short example of what you would want as the result of 
the pre-processing, just with a couple of conditions?