[Bug libstdc++/87493] chrono::system_clock unusable with std::tm due to misaligned precisions

[aleksey.covacevice at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87493

Aleksey Covacevice <aleksey.covacevice at gmail dot com> changed:

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--- Comment #3 from Aleksey Covacevice <aleksey.covacevice at gmail dot com> ---
Vinícius:

I couldn't reproduce the issue at hand. I've tested a number of `std::tm`
combinations manually, and also checked through all `time_t` values from
`INT_MIN` to `INT_MAX` without any failures.

Could you provide a sample input for which the assertion fails?

Recall that, from POSIX, `tm.tm_year` is supposed to be a number counted from
1900. Mistakenly inputting larger values will silently overflow things along
the way.