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Doc: Work on QVariant's equality operator.

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Task-number: QTBUG-26018
Change-Id: I6627456d166bc0a036cadeee7bd51aa8e576a818
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
This commit is contained in:
Geir Vattekar 2012-08-20 14:31:32 +02:00 committed by Qt by Nokia
parent a03e815b6c
commit f3fea329fd
1 changed files with 13 additions and 2 deletions
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15
src/corelib/kernel/qvariant.cpp
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@ -2798,6 +2798,12 @@ bool QVariant::convert(const int type, void *ptr) const
Returns true if \a v1 and \a v2 are equal; otherwise returns false. Returns true if \a v1 and \a v2 are equal; otherwise returns false.
If \a v1 and \a v2 have the same \l{QVariant::}{type()}, the
type's equality operator is used for comparison. If not, it is
attempted to \l{QVariant::}{convert()} \a v2 to the same type as
\a v1. See \l{QVariant::}{canConvert()} for a list of possible
conversions.
\warning This function doesn't support custom types registered \warning This function doesn't support custom types registered
with qRegisterMetaType(). with qRegisterMetaType().
*/ */
@ -2817,8 +2823,13 @@ bool QVariant::convert(const int type, void *ptr) const
Compares this QVariant with \a v and returns true if they are Compares this QVariant with \a v and returns true if they are
equal; otherwise returns false. equal; otherwise returns false.
In the case of custom types, their equalness operators are not called. QVariant uses the equality operator of the type() it contains to
Instead the values' addresses are compared. check for equality. QVariant will try to convert() \a v if its
type is not the same as this variant's type. See canConvert() for
a list of possible conversions.
\warning This function doesn't support custom types registered
with qRegisterMetaType().
*/ */
/*! /*!