float.sizeof should be 4
Johan
j at j.nl
Sun Sep 22 16:45:23 UTC 2024
On Sunday, 22 September 2024 at 14:59:36 UTC, Timon Gehr wrote:
> On 9/22/24 14:59, Steven Schveighoffer wrote:
>> Not `4LU`.
>>
>> For the billionth time while porting raylib to D, I'm having
>> to replace `n*float.sizeof` with `n*int(float.sizeof)` because
>> otherwise, it doesn't fit into the `int` I'm assigning it to.
>>
>> Why isn't it just 4? 4 will convert to any width you want. It
>> does not poison integer multiplications or additions.
>>
>> The chances that `T.sizeof > int.max` is near zero. And even
>> if it did, making it the same as a number literal would just
>> work -- it would become `size_t` if it was too big.
>>
>> -Steve
>
> Well, the point of contention is not that `float.sizeof >
> int.max`. Rather, `n*float.sizeof` could be bigger than
> `int.max`.
Is that true?
`n*int(float.sizeof)` could also be bigger than `int.max`, but
Steven says it works for his case. (@Steven: best to show the
full case).
-Johan
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