vector iterator not dereferencable

Started by lride, Nov 22 2012 11:32 PM

Old topic!
Guest, the last post of this topic is over 60 days old and at this point you may not reply in this topic. If you wish to continue this conversation start a new topic.

You cannot reply to this topic

2 replies to this topic

#1 lride Members - Reputation: 610

0Likes

Posted 22 November 2012 - 11:32 PM

I have this piece of code. This is called once every frame
[source lang="cpp"] //While there is a message to deliverwhile(messageQueue.top().dispatchTime<=currentTime && !messageQueue.empty()) { //deliver the message messageQueue.top().receiver->handleMessage(messageQueue.top()); //delete the message messageQueue.pop(); }[/source]

This works fine in release, but when I run in debug mode, I soon get an assertion failure: "Debug Assertion Failed! vector iterator not dereferencable"

Edited by lride, 22 November 2012 - 11:34 PM.

An invisible text.

Sponsor:

#2 JTippetts Moderators - Reputation: 5022

2Likes

Posted 22 November 2012 - 11:36 PM

You should put the !messageQueue.empty() test before you attempt to dereference top(), in case the queue actually is empty which would mean that messageQueue.top().dispatchTime is trying to dereference end() iterator.

Accidental Noise Library
The Adventures of Goblinson Crusoe

#3 lride Members - Reputation: 610

0Likes

Posted 22 November 2012 - 11:40 PM

Thank you. That fixed it.

An invisible text.

Back to General Programming

Old topic!
Guest, the last post of this topic is over 60 days old and at this point you may not reply in this topic. If you wish to continue this conversation start a new topic.