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* [gcc r12-1757] libstdc++: Fix comment in chrono::year::is_leap()
@ 2021-06-23 17:51 Jonathan Wakely
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From: Jonathan Wakely @ 2021-06-23 17:51 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:4a404f66b09d661bdc60e7e0d5d08f00c4e194db
commit r12-1757-g4a404f66b09d661bdc60e7e0d5d08f00c4e194db
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Wed Jun 23 18:50:03 2021 +0100
libstdc++: Fix comment in chrono::year::is_leap()
libstdc++-v3/ChangeLog:
* include/std/chrono (chrono::year::is_leap()): Fix incorrect
logic in comment.
Diff:
---
libstdc++-v3/include/std/chrono | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libstdc++-v3/include/std/chrono b/libstdc++-v3/include/std/chrono
index 863b6a27bdf..0b597be1944 100644
--- a/libstdc++-v3/include/std/chrono
+++ b/libstdc++-v3/include/std/chrono
@@ -1606,8 +1606,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// [1] https://github.com/cassioneri/calendar
// [2] https://accu.org/journals/overload/28/155/overload155.pdf#page=16
- // Furthermore, if y%100 != 0, then y%400==0 is equivalent to y%16==0,
- // so we can rearrange the expression to (mult_100 ? y % 4 : y % 16)==0
+ // Furthermore, if y%100 == 0, then y%400==0 is equivalent to y%16==0,
+ // so we can simplify it to (!mult_100 && y % 4 == 0) || y % 16 == 0,
// which is equivalent to (y & (mult_100 ? 15 : 3)) == 0.
// See https://gcc.gnu.org/pipermail/libstdc++/2021-June/052815.html
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2021-06-23 17:51 [gcc r12-1757] libstdc++: Fix comment in chrono::year::is_leap() Jonathan Wakely
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