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Re: insert-header-preprocessor-definition

From: Emanuel Berg
Subject: Re: insert-header-preprocessor-definition
Date: Sun, 15 Apr 2018 21:35:44 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux)

Ben Bacarisse wrote:

> The C standard lists, for every header, any
> patterns of macro names that are reserved to
> the implementation. errno.h, for example,
> reserves all macro names that start
> E followed by a digit or another upper case
> latter. Thus a program that uses ERROR_H
> whilst also including errno.h is technically
> undefined even if errno.h does not actually
> use that macro name.
> None of the headers reserve any names that
> start H_

Right, but what about stuff that aren't part of
the C standard library?

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