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From: | Paul Eggert |
Subject: | Re: New function xpalloc in module xalloc |
Date: | Tue, 6 Apr 2021 13:07:56 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 |
On 4/6/21 12:23 PM, Marc Nieper-Wißkirchen wrote:
Where is the flaw in my reasoning?
Oh, you're right; any nonnegative signed integer value will fit into uintmax_t. (Perhaps this wasn't always true in older standards, but it's true of the recent C standard.)
So that cast should work. Still, I wouldn't use a cast; I'd assign the integer to an uintmax_t local value, and use that.
And anyway, for this particular case widening to uintmax_t is not necessary; it complicates the code and can make it less efficient on some platforms by forcing an unnecessary conversion at runtime. So let's not do that.
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