Fix put_time() crash on invalid struct tm data #4883
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StephanTLavavej
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Aug 8, 2024
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TheStormN
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TheStormN
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StephanTLavavej
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Aug 21, 2024
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Man, if we could just push a bit the UCRT team to replicate at least the validation behavior of other C libraries regarding |
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I'm mirroring this to the MSVC-internal repo - please notify me if any further changes are pushed. |
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Thanks for fixing this long-standing bug and making this code so much more robust! 🎉 😸 🚀 |
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Fixes #4882
Fixes #924
My next PR about fixing
std::put_timecrashes.If all goes well I will try to also fix the performance issues mentioned in #3575 and #1900 before VS 17.12 cut.
UPDATE: The result now outputs single ? for every invalid tm struct data based on specifier. For example if tm struct contains invalid year and the format string is "%Y-%m-%d-%H-%M", the output will be like
?-08-10-00-45.