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  • 64-bit time on 32-bit Windows NT (was: Re: Can't Avoid That Shit Rust -

    From Nuno Silva@21:1/5 to Lawrence D'Oliveiro on Tue Oct 1 10:31:58 2024
    On 2024-10-01, Lawrence D'Oliveiro wrote:

    On Tue, 1 Oct 2024 00:56 +0100 (BST), John Dallman wrote:

    In article <vdfdcj$2dsh2$7@dont-email.me>, ldo@nz.invalid (Lawrence
    D'Oliveiro) wrote:

    On Tue, 1 Oct 2024 00:25 +0100 (BST), John Dallman wrote:

    In article <vdf71h$2cn51$17@dont-email.me>, ldo@nz.invalid (Lawrence
    D'Oliveiro) wrote:

    It's not being ignored. The Linux kernel added the option to build a >>>>> 32-bit kernel with time_t having 64 bits

    The same has happened for Windows and Apple's operating systems.
    A lot of the work for 2038 is already done.

    They're not supporting 32-bit code any more. Linux is.

    Apple only run 64-bit code on recent OSes, yes, but Windows 11 still
    runs 32-bit applications, even though the OS is only available in 64-bit
    form.

    But those 32-bit Windows apps are not being rebuilt for 64-bit time_t. The option isn’t there.

    Is Windows really affected in the same way?

    According to the last bullet item in [1], WINAPI does not rely on time_t
    *and* the parts that do have it have built with 64-bit time_t by default
    for a while now?

    (What does this mean for people using third-party compilers? Just needs
    to be enabled there too?)

    [1] https://en.wikipedia.org/w/index.php?oldid=1244809614#Implemented_solutions

    (Either way, trusting this, it seems the rebuild option has been there
    for almost two decades now?)

    --
    Nuno Silva

    --- SoupGate-Win32 v1.05
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  • From Richard Kettlewell@21:1/5 to Nuno Silva on Tue Oct 1 16:55:59 2024
    Nuno Silva <nunojsilva@invalid.invalid> writes:
    On 2024-10-01, Lawrence D'Oliveiro wrote:
    On Tue, 1 Oct 2024 00:56 +0100 (BST), John Dallman wrote:
    Apple only run 64-bit code on recent OSes, yes, but Windows 11 still
    runs 32-bit applications, even though the OS is only available in
    64-bit form.

    But those 32-bit Windows apps are not being rebuilt for 64-bit
    time_t. The option isn’t there.

    Is Windows really affected in the same way?

    According to the last bullet item in [1], WINAPI does not rely on time_t *and* the parts that do have it have built with 64-bit time_t by default
    for a while now?

    Yes, Windows has had 64-bit time_t on 32-bit platforms for many years, I
    think since some time in the 2000s.

    It did fail for dates in the far future (Y6K or so IIRC) but that
    doesn’t need a new data type to fix (they may well have done so
    already).

    --
    https://www.greenend.org.uk/rjk/

    --- SoupGate-Win32 v1.05
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