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Re: New function xpalloc in module xalloc

From: Paul Eggert
Subject: Re: New function xpalloc in module xalloc
Date: Tue, 6 Apr 2021 12:05:09 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1

On 4/5/21 11:48 PM, Marc Nieper-Wißkirchen wrote:
SIZE_MAX < (uintmax_t) nbytes

Eeuuw! That's a cure worse than the disease. Among other things, there is no guarantee that PTRDIFF_MAX <= UINTMAX_MAX so in theory the comparison could go completely awry with a sufficiently-large NBYTES.

"Don't use casts." Words to live by.

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