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From: Michael S <already5chosen@yahoo.com>
Newsgroups: comp.lang.c
Subject: Re: Suggested method for returning a string from a C program?
Date: Sat, 22 Mar 2025 19:17:31 +0200
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On Sat, 22 Mar 2025 13:25:43 +0000
Richard Heathfield <rjh@cpax.org.uk> wrote:

> 
> Or you can save yourself a multiplication
> 
> n = (n << 2) - (n - 1);
> 
> potentially shaving entire picoseconds off the runtime.
> 

Unlikely.
More likely, your transformation will confuse compiler into generation
of suboptmal code.