Access violation of member of pointer object

Posted by Martin Lauridsen on Stack Overflow See other posts from Stack Overflow or by Martin Lauridsen
Published on 2010-04-26T11:32:46Z Indexed on 2010/04/26 11:33 UTC
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Filed under:

access

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accessviolationexception

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c++

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pointers

So I am coding this client/server program. This code is from the client side. The client has an instance of an object

mpqs_sieve *instance_;

The reason I make it as a pointer is, that mpqs_sieve only has a constructor that takes 3 arguments, and I want to instantiate it at a later point in time.

The client first gets some data from the server, and uses this to instantiate instance_. After this, it will request some more data, and upon receiving this (these are three coeffecients for a quadratic polynomial), it should set these in the instance_ object. However upon calling a member function of instance_, I get an access violation on one of the members of instance_ within that function call.

I posted my code here: on pastebin, and I get the error on line 100. The call comes from line 71, and before that line 21.

Any ideas to solve this? Thanks!

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