[Qt-interest] Adding quint32 to a QByteArray

[Francisco Gonzalez]

2010/9/7 Jason H <scorp1us at yahoo.com>

> QDataStream + QBuffer?
>
>
>
Well in fact (from Qt Docs):
"QDataStream::QDataStream ( QByteArray * a, QIODevice::OpenMode mode )
Constructs a data stream that operates on a byte array, a. The mode
describes how the device is to be used.
Alternatively, you can use QDataStream(const QByteArray &) if you just want
to read from a byte array.
Since QByteArray is not a QIODevice subclass, internally a QBuffer is
created to wrap the byte array."
so it is the same solution.

What I mean is why there is not a function like?:
QByteArray & QByteArray::append( const quint32& num, QByteArray::ByteOrder
bo);


*From:* Francisco Gonzalez <gzmorell at gmail.com>

> *To:* qt-interest at trolltech.com
> *Sent:* Tue, September 7, 2010 2:24:12 PM
> *Subject:* [Qt-interest] Adding quint32 to a QByteArray
>
> Hello,
> Afaik QByteArray class have not a function to add a quint32 data directly
> at some position, (nor any other integer, float or doble types) in a
> platform independent manner.
> Instead it is possible to do:
>
> quint32 number = anyNumber;
> qint64 position = anyPositionNumber;
> QByteArray array;
> QDataStream stream(QByteArray& array, QIODevice::ReadWrite);
> stream.setByteOrder(QDataStream::LittleEndian); // The endian type you want
> stream.device()->seek(position);
> stream << number;
>
>
> Is there any other option to get this directly to a QByteArray in a
> platform independent way?
>
> Thanks,
> Francisco González
>
>
>
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