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Ensure QTypedArrayData is just a shim over QArrayData

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Change-Id: I6f41ca054d0e0a0c4642f0b841b3b3df9559f818
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
This commit is contained in:
João Abecasis 2012-03-27 12:49:00 +02:00 committed by Qt by Nokia
parent 7c9e345551
commit 99e7ad660f
1 changed files with 4 additions and 0 deletions
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4
src/corelib/tools/qarraydata.h
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@ -140,18 +140,21 @@ struct QTypedArrayData
static QTypedArrayData *allocate(size_t capacity,
AllocationOptions options = Default) Q_REQUIRED_RESULT
{
Q_STATIC_ASSERT(sizeof(QTypedArrayData) == sizeof(QArrayData));
return static_cast<QTypedArrayData *>(QArrayData::allocate(sizeof(T),
Q_ALIGNOF(AlignmentDummy), capacity, options));
}
static void deallocate(QArrayData *data)
{
Q_STATIC_ASSERT(sizeof(QTypedArrayData) == sizeof(QArrayData));
QArrayData::deallocate(data, sizeof(T), Q_ALIGNOF(AlignmentDummy));
}
static QTypedArrayData *fromRawData(const T *data, size_t n,
AllocationOptions options = Default)
{
Q_STATIC_ASSERT(sizeof(QTypedArrayData) == sizeof(QArrayData));
QTypedArrayData *result = allocate(0, options | RawData);
if (result) {
Q_ASSERT(!result->ref.isShared()); // No shared empty, please!
@ -165,6 +168,7 @@ struct QTypedArrayData
static QTypedArrayData *sharedNull()
{
Q_STATIC_ASSERT(sizeof(QTypedArrayData) == sizeof(QArrayData));
return static_cast<QTypedArrayData *>(
const_cast<QArrayData *>(&QArrayData::shared_null));
}