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Date: Thu, 10 May 2007 21:41:14 -0400
From: "Larry Hall (Cygwin)" <reply-to-list-only-lh AT cygwin DOT com>
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Subject: Re: Please Help!! Calling Socket function in a dll file (that is  created using cygwin library), by a Microsoft Visual C++ program resulting  in infinite loop
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kalasad mailu wrote:
> This question is also regarding my efforts to create a dll file using
> g++ in cygwin and use it in VC++.
> 
> The below program works fine and the output is also shown below. But
> IF I UNCOMMENT THE TWO LINES in my file dtest.cpp i.e.
> 
> //#include<iostream>
> //std::cout<<"hello naumskara\n";
> 
> and do the same steps. Dll is created successfully, and the MSVC++
> compiles fine. But when I try to run it, I get the following msg when
> it tries to execute the init(); (to initialize the cygwin environment)
> function(MSVC++ file):
> ------------------------------------------------------------------------------------------------------------
> 
> First-chance exception at 0x610b48b6 in new3.exe: 0xC0000005: Access
> violation reading location 0x00000004.
> -------------------------------------------------------------------------------------------------------------
> 
> 
> I am running the MSVC++ program from the IDE.
> 
> Could you please suggest me how to make the program(MSVC++) work after
> un-commenting the line.

See
<http://cygwin.com/faq/faq-nochunks.html#faq.programming.msvcrt-and-cygwin>

You're mixing and matching I/O from two different CRTs.  You can't do that.


-- 
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

_____________________________________________________________________

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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