Hi,
I use ludcmp() in a while loop for calcuation.
When I run my code, the "Segmentation fault" error
always appears. I don't know why. It's very strange
because I use it in a while loop. Every first time
when the while loop call ludcmp(), it succeed. But
the "Segmentatin fault" error will show up in the
second time or later time when the while loop call
ludcmp(). I have been stuck to the problem for a
long time already.

Thank you in advance for your help.

Chen

Chen,

If you could post some of the code you are trying to use it would help us answer your question. Without knowing what you are doing it is difficult to give you a helpful answer.

-Chad