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From: mitchalsup@aol.com (MitchAlsup1)
Newsgroups: comp.arch
Subject: Re: Computer architects leaving Intel...
Date: Wed, 4 Sep 2024 16:32:37 +0000
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On Wed, 4 Sep 2024 7:29:01 +0000, David Brown wrote:

> On 03/09/2024 22:22, MitchAlsup1 wrote:
>> On Tue, 3 Sep 2024 19:30:21 +0000, Stefan Monnier wrote:
>>
>>>> Specifications are an agreement between the supplier and the client. The
>>>
>>> The problem here is that the C standard, seen as a contract, is unfair
>>> to the programmer, because it's so excruciatingly hard to write code
>>> that is guaranteed to be free from UB.
>>
>> # define int int64_t
>> ..
>>
>> makes it easier.
>
> That's UB, I believe :-)  And it will certainly be confusing.

On 64-bit machines it re-establishes the dusty-deck old K&R C where
int was the fastest integer type.

> But good use of size-specific types is helpful to writing correct code.
> If your calculations could conceivably overflow 32 bits, int64_t is a
> good choice.
>
> For smaller numbers and portable code, you might want int_fast32_t or
> int_fast16_t, which on most 64-bit systems will be faster than "int".
>
> You can call it /ugly/, but it's not /hard/.