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QDateTime: improve docs about invalid vs valid datetime relation

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Extract the information about the relation between invalid and valid
datetimes into a snippet, and include it in the documentation of
every relational operator.

Pick-to: 6.5 6.2 5.15
Change-Id: I61b239647efe928eb0758cfc5649b33ab4d06c7d
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
(cherry picked from commit 9e26f1da0b0dedf7ee6d860b7c11a27b0b554866)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Ivan Solovev 2023-09-29 19:26:54 +02:00 committed by Qt Cherry-pick Bot
parent abb26af834
commit 90c65ca197
1 changed files with 12 additions and 4 deletions
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16
src/corelib/time/qdatetime.cpp
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@ -4694,9 +4694,11 @@ bool QDateTime::equals(const QDateTime &other) const
Returns \c true if \a lhs is the same as \a rhs; otherwise returns \c false.
//! [invalid-vs-valid-datetime]
Two datetimes are different if either the date, the time, or the time zone
components are different. Since 5.14, all invalid datetime are equal (and
components are different. Since 5.14, all invalid datetimes are equal (and
less than all valid datetimes).
//! [invalid-vs-valid-datetime]
\sa operator!=(), operator<(), operator<=(), operator>(), operator>=()
*/
@ -4707,9 +4709,7 @@ bool QDateTime::equals(const QDateTime &other) const
Returns \c true if \a lhs is different from \a rhs; otherwise returns \c
false.
Two datetimes are different if either the date, the time, or the time zone
components are different. Since 5.14, all invalid datetime are equal (and
less than all valid datetimes).
\include qdatetime.cpp invalid-vs-valid-datetime
\sa operator==()
*/
@ -4742,6 +4742,8 @@ bool QDateTime::precedes(const QDateTime &other) const
Returns \c true if \a lhs is earlier than \a rhs;
otherwise returns \c false.
\include qdatetime.cpp invalid-vs-valid-datetime
\sa operator==()
*/
@ -4751,6 +4753,8 @@ bool QDateTime::precedes(const QDateTime &other) const
Returns \c true if \a lhs is earlier than or equal to \a rhs; otherwise
returns \c false.
\include qdatetime.cpp invalid-vs-valid-datetime
\sa operator==()
*/
@ -4759,6 +4763,8 @@ bool QDateTime::precedes(const QDateTime &other) const
Returns \c true if \a lhs is later than \a rhs; otherwise returns \c false.
\include qdatetime.cpp invalid-vs-valid-datetime
\sa operator==()
*/
@ -4768,6 +4774,8 @@ bool QDateTime::precedes(const QDateTime &other) const
Returns \c true if \a lhs is later than or equal to \a rhs;
otherwise returns \c false.
\include qdatetime.cpp invalid-vs-valid-datetime
\sa operator==()
*/