How to debug segmentation fault?

Question

It works when, in the loop, I set every element to 0 or to entry_count-1. It works when I set it up so that entry_count is small, and I write it by hand instead of by loop (

Answer 1

Valgrind and GDB are very useful.

The most previous one that I used was GDB- I like it because it showed me the exact line number that the Segmentation Fault was on.

Here are some resources that can guide you on using GDB:

GDB Tutorial 1

GDB Tutorial 2

If you still cannot figure out how to use GDB with these tutorials, there are tons on Google! Just search debugging Segmentation Faults with GDB!

Good luck :)