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avoid QByteArray resizing

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Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2021-08-30 16:28:22 +03:00
parent 60c9244dad
commit 0658cffbae
3 changed files with 4 additions and 9 deletions
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3
src/declarative/qml/qdeclarativecompiledbindings.cpp
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@ -2822,8 +2822,7 @@ QByteArray QDeclarativeBindingCompilerPrivate::buildSignalTable() const
QByteArray QDeclarativeBindingCompilerPrivate::buildExceptionData() const
{
QByteArray rv;
rv.resize(committed.exceptions.count() * sizeof(quint64));
QByteArray rv(committed.exceptions.count() * sizeof(quint64), Qt::Uninitialized);
::memcpy(rv.data(), committed.exceptions.constData(), rv.size());
return rv;
}

7
src/declarative/qml/qmetaobjectbuilder.cpp
View file

@ -1384,11 +1384,8 @@ QByteArray QMetaObjectBuilder::toRelocatableData(bool *ok) const
return QByteArray();
}
QByteArray data;
data.resize(size);
char *buf = data.data();
memset(buf, 0, size);
buildMetaObject(d, buf, true);
QByteArray data(size, '\0');
buildMetaObject(d, data.data(), true);
if (ok) *ok = true;
return data;
}

3
src/declarative/util/qdeclarativelistmodel.cpp
View file

@ -745,8 +745,7 @@ QByteArray QDeclarativeListModelParser::compile(const QList<QDeclarativeCustomPa
instr.count() * sizeof(ListInstruction) +
data.count();
QByteArray rv;
rv.resize(size);
QByteArray rv(size, Qt::Uninitialized);
ListModelData *lmd = (ListModelData *)rv.data();
lmd->dataOffset = sizeof(ListModelData) +