[Coin-discuss] Trouble with C interface: glibc memory corruption error

[John Pye]

Hi all

I'm working on a interface to IPOPT from the C language, but I'm running 
into a problem that I'm having trouble debugging.

What happens is that I'm getting a 'glibc detected' 'memory corruption 
(fast)' error :-)

> *** glibc detected *** /home/john/ascend/test.py: malloc(): memory 
> corruption (fast): 0x082b21c0 ***
> Terminated

I added some commenting output to CreateIpoptProblem, and I found that 
the error occurs somewhere inside the Ipopt::IpoptApplication 
constructor called from within that function (IpStdCInterface.cpp line 
~100).

I wonder if anyone might be able to suggest what possibly things I might 
have done wrong in my call to CreateIpoptProblem that could lead to this 
sort of extreme error? I'm rather puzzled.

Also, I tried to turn on the IPOPT debug output, but didn't seem to 
succeed. What is the correct way of getting deboug output from IPOPT?

Would appreciate any suggestions.

Cheers
JP