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libstdc++: Fix regression in std::format output of %Y for negative years

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The change in r14-6468-ga01462ae8bafa8 was only supposed to apply to %C
formats, not %Y.

libstdc++-v3/ChangeLog:

	* include/bits/chrono_io.h (__formatter_chrono::_M_C_y_Y): Do
	not round century down for %Y formats.
This commit is contained in:
Jonathan Wakely 2023-12-13 12:00:45 +00:00
parent 36cb7be477
commit ad537ccd52
1 changed files with 1 additions and 1 deletions
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2
libstdc++-v3/include/bits/chrono_io.h
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@ -825,7 +825,7 @@ namespace __format
{
__s.assign(1, _S_plus_minus[1]);
// For floored division -123//100 is -2 and -100//100 is -1
if ((__ci * 100) != __yi)
if (__conv == 'C' && (__ci * 100) != __yi)
++__ci;
}
if (__ci >= 100) [[unlikely]]