Why is time_t defined as a 32-bit type on Windows?

Andrej Mitrovic andrej.mitrovich at gmail.com
Wed Aug 5 16:19:27 UTC 2020

On Wednesday, 5 August 2020 at 16:13:19 UTC, Andrej Mitrovic 
> ```
> C:\dev> rdmd -m64 --eval="import core.stdc.time; 
> writeln(time_t.sizeof);"
> 4
> ```
> According to MSDN this should not be the case:
> https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/time-time32-time64?view=vs-2019
>> time is a wrapper for _time64 and **time_t is, by default, 
>> equivalent to __time64_t**.
> But in Druntime it's defined as a 32-bit type: 
> https://github.com/dlang/druntime/blob/349d63750d55d078426d4f433cba512625f8a3a3/src/core/sys/windows/stdc/time.d#L42

It looks like this definition was there from at least 2008 (!!), 
and probably earlier than that but I don't have the SVN sources: 

So basically, just around the time the first 64-bit version of 
Windows was released. I'm guessing it was just neglected..

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