Re: [Boost-users] Library failing

Subject: Re: [Boost-users] Library failing
From: Mathew Benson (mathew.benson_at_[hidden])
Date: 2009-11-06 23:56:34

It took a while to figure out the parameters, but boost::bind,  
boost::asio::placeholders::bytes_transferred, and  
boost::asio::placeholders::error were all null.  I can't figure out  
what I d differently that it worked when is was combined but broke in  
a library.  How do I set these?  Is there a boost init call?

Sent from my iPhone

On Nov 6, 2009, at 7:44 PM, OvermindDL1 <overminddl1_at_[hidden]> wrote:

> On Fri, Nov 6, 2009 at 3:08 PM, Mathew Benson  
> <mathew.benson_at_[hidden]> wrote:
>> I wrote a utility to abstract sending a data buffer to a central  
>> server with
>> a single function call.  I verified it works, and then split out the
>> functionality into a library (.lib).  I tried using it in a test
>> application, but keep getting an "Access violation reading location
>> 0x00000000" error.  It occurs in the call:
>> socket_.async_receive_from(
>>         boost::asio::buffer(data_, max_length), sender_endpoint_,
>>         boost::bind(&CommIn::handle_receive_from, this,
>>         boost::asio::placeholders::error,
>>         boost::asio::placeholders::bytes_transferred));
>> I'm using Visual C++ 2005 Express, and a UML to C++ modeler and code
>> generator called Rhapsody.  I'm not sure where to even begin  
>> troubleshooting
>> this.
>
> Debug into it and see what pointer is null at that call, then find out
> where that pointer should be set and why it is not.
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