Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Integral types and own type definitions (was Re: Suggested method for returning a string from a C program?)
Date: Wed, 26 Mar 2025 12:38:51 -0700
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Janis Papanagnou <janis_papanagnou+ng@hotmail.com> writes:
> On 26.03.2025 12:33, David Brown wrote:
[...]
>> Even in C (in a desperate attempt to bring us back on topic for the
>> group), there are no negative integer constants - merely positive
>> integer constants with a unary minus operator applied.
>
> Is that so? (Harmlessly asking.) - I mean, if I write  int x = -5;
> does it matter (in "C") whether its parsed as  <integer number>  or
>  <negation> <positive number> ?

If -5 were a single token (an integer constant), then 6-5 would be an
integer constant 6 followed by an integer constant -5, a syntax error.

If INT_MIN is -2147483648 and INT_MAX is 2147483647, the expression
-2147483648 is of type long int.  Implementations of <limits.h> have to
work around this.

[...]

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */