HowardHinnant/date
1
0
Fork 1
mirror of https://github.com/HowardHinnant/date.git synced 2025-07-31 19:24:28 +02:00
Code Issues Packages Projects Releases Wiki Activity

Don't negate toff if we've already failed

Browse Source 
This avoids calling `-` on `not_a_offset`, which is set to `minutes::min()`, which is typically the min of `long`. Due to two's complement, calling `-` on this minimum value is undefined behavior.
This commit is contained in:
Davis Vaughan
2025-03-17 10:23:00 -04:00
committed by Howard Hinnant
parent 32ecb2ad24
commit 0b336657b1
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/date/date.h
View File

@@ -7577,7 +7577,7 @@ from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
} }
} }
} }
if (neg) if (neg && !is.fail())
toff = -toff; toff = -toff;
checked_set(temp_offset, toff, not_a_offset, is); checked_set(temp_offset, toff, not_a_offset, is);
command = nullptr; command = nullptr;