Files
rt-thread/components/libc/compilers/common
Hui Su 339bffb702 [fix][libc] fix timegm month overflow calculation
The original overflow logic used __spm[tm_mon] as the current month's
length when normalizing tm_mday. This produced incorrect dates after
crossing month boundaries and left zero or negative days unnormalized.

Use the difference between adjacent cumulative day offsets with
leap-year handling. Normalize overflow in tm_sec, tm_min, tm_hour,
tm_mday, and tm_mon to keep the affected broken-down fields normalized.

Add regression tests for month boundaries, leap years, large offsets,
zero and negative days, negative time fields, combined overflow, and
boundary carry cases.

Close #11686

Signed-off-by: Hui Su <3164683437@qq.com>
2026-08-21 09:44:42 +08:00
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2024-12-21 14:57:17 -05:00
2024-12-24 13:42:04 +08:00
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This folder is "common" for all toolchains.