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From: David Brown <david.brown@hesbynett.no>
Newsgroups: comp.lang.c
Subject: Re: Baby X is bor nagain
Date: Fri, 21 Jun 2024 12:46:40 +0200
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On 20/06/2024 22:31, Vir Campestris wrote:
> On 17/06/2024 14:43, David Brown wrote:
>>>
>>> Compilation speed is important to everyone. That's why so many tricks 
>>> are used to get around the lack of speed in a big compiler, or so 
>>> many extra resources are thrown at the problem.
>>
>> What "tricks" ?
> 
> Precompiled headers sprang to mind in about half a second.
> 
> <https://en.wikipedia.org/wiki/Precompiled_header>
> 
> Andy

These are used primarily in C++, where you often have /very/ large 
headers that require a significant amount of analysis.  In C, this is 
not remotely the same scale of problem.  C headers are usually far 
shorter - and far simpler to process.  (In a quick test on my system, 
#include <stdio.h> pulled in 792 lines, while #include <iostream> took 
28152 lines.)

In C++, compilation speed /is/ an issue.  That's why we now have modules 
there.