Part of a QByteArray() to QString()

[elcuco]

In my situation I have a QByteArray which I get from a UDP socket. I know that from bytes 10 I have up to 5 bytes which represent some name (guaranteed to be latin1).

My code currently reads:

// QByteArray byte_array, int start_offset, int count
QString s;
for ( int i=0; i<count; i ++ )
   s.append( byte_array[ start_offset + i ] );

// QByteArray byte_array, int start_offset, int count
QString s;
for ( int i=0; i<count; i ++ )
   s.append( byte_array[ start_offset + i ] );

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I was wondering if there is a better way. Something like this code (I would assume it would check boundaries and it will use less memory cause of less copies).

s = byte_array.truncate( start_offset, count ).toLatin1();

s = byte_array.truncate( start_offset, count ).toLatin1();

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[sirius]

Not truncate, but mid:

QString s;
s = QString::fromLatin1(byte_array.mid(10, 5));

QString s;
s = QString::fromLatin1(byte_array.mid(10, 5));

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The QByteArray doc is a great place to look for answers