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Hello, I have a class with a QHash and a QHashIterator. The PacketBuffer contains packets identified by a number. I've a procedure sendNextPacket which picks the next packet from the PacketBuffer using itPacketBuffer. -- [ signature omitted ]
Reinder Feenstra wrote:
>Hello,
>
>I have a class with a QHash and a QHashIterator. The PacketBuffer
>contains packets identified by a number. I've a procedure sendNextPacket
> which picks the next packet from the PacketBuffer using
> itPacketBuffer.
>
>--
>
>protected:
> QHash<quint16,QByteArray> PacketBuffer;
> QHashIterator<quint16,QByteArray> itPacketBuffer( PacketBuffer );
>
>When I want to compile i get the error:
>error: expected `;' before '(' token
>
>So I changed the code to:
>
>--
>
>protected:
> QHash<quint16,QByteArray> PacketBuffer;
> QHashIterator<quint16,QByteArray> itPacketBuffer;
>
>Then I get the error:
>error: no matching function for call to `QHashIterator<quint16,
>QByteArray>::QHashIterator()'
>
>--
>
>Can someone explain me what i'm going wrong?
You forgot to initialise the itPacketBuffer iterator in your constructor's
intialisation list.
Please remember to re-initialise it every time the hash itself changes
too.
--
[ signature omitted ]
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On Monday 17 December 2007 22:53:05 Reinder Feenstra wrote:
<SNIP />
> protected:
> QHash<quint16,QByteArray> PacketBuffer;
> QHashIterator<quint16,QByteArray> itPacketBuffer( PacketBuffer );
>
> When I want to compile i get the error:
> error: expected `;' before '(' token
>
> So I changed the code to:
>
> --
>
> protected:
> QHash<quint16,QByteArray> PacketBuffer;
> QHashIterator<quint16,QByteArray> itPacketBuffer;
>
> Then I get the error:
> error: no matching function for call to `QHashIterator<quint16,
> QByteArray>::QHashIterator()'
>
> --
>
> Can someone explain me what i'm going wrong?
>
> Greetings,
> Reinder
You're attempting to create an actual instance in your header.
Do it this way instead:
.h file
class MyClass: public Whatever{
...
protected:
QHash< quint16, QByteArray > PacketBuffer;
QHashIterator< quint16, QByteArray > itPacketBuffer;
};
.cpp file
MyClass::MyClass()
: Whatever()
, itPacketBuffer(PacketBuffer)
{
}
Happy coding,
Eric
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with
> "unsubscribe" in the subject or the body. List archive and information:
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--
[ signature omitted ]
Eric,
Thanks for the solution, now I understand what is was doing wrong.
Reinder
Eric Methorst wrote:
> On Monday 17 December 2007 22:53:05 Reinder Feenstra wrote:
> <SNIP />
>> protected:
>> QHash<quint16,QByteArray> PacketBuffer;
>> QHashIterator<quint16,QByteArray> itPacketBuffer( PacketBuffer );
>>
>> When I want to compile i get the error:
>> error: expected `;' before '(' token
>>
>> So I changed the code to:
>>
>> --
>>
>> protected:
>> QHash<quint16,QByteArray> PacketBuffer;
>> QHashIterator<quint16,QByteArray> itPacketBuffer;
>>
>> Then I get the error:
>> error: no matching function for call to `QHashIterator<quint16,
>> QByteArray>::QHashIterator()'
>>
>> --
>>
>> Can someone explain me what i'm going wrong?
>>
>> Greetings,
>> Reinder
> You're attempting to create an actual instance in your header.
> Do it this way instead:
>
> .h file
> class MyClass: public Whatever{
> ...
> protected:
> QHash< quint16, QByteArray > PacketBuffer;
> QHashIterator< quint16, QByteArray > itPacketBuffer;
> };
>
> .cpp file
> MyClass::MyClass()
> : Whatever()
> , itPacketBuffer(PacketBuffer)
> {
> }
>
>
> Happy coding,
> Eric
>
>> --
>> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with
>> "unsubscribe" in the subject or the body. List archive and information:
>> http://lists.trolltech.com/qt-interest/
>
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the subject or the body.
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--
[ signature omitted ]