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From: Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups: comp.lang.c
Subject: Re: Sequencing guarantees for macro versions of standard functions
Date: Sat, 29 Jan 2022 03:36:49 -0800
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Keith Thompson <Keith.S.Thompson+u@gmail.com> writes:

> Tim Rentsch <tr.17687@z991.linuxsc.com> writes:
>
>> Keith Thompson <Keith.S.Thompson+u@gmail.com> writes:
>
> [...]
>
>>> Right, I should have paid closer attention to the semantics of modf()
>>> (which I don't think I've ever used "in anger").
>>
>> Why do you make the "in anger" comment?  I couldn't find any
>> connection to earlier remarks in this thread.
>
> It's a figure of speech.  Quoting a comment I found on Hacker News:
>
>     To "use something in anger" is a phrase, meaning to use something
>     "for real" - in production, etc.  rather than just to try it out.
>
> No actual anger is implied.

I see.  I wasn't aware of that idiom.