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Top Forums Programming Looping an array of 2d arrays in C Post 303023425 by jim mcnamara on Sunday 16th of September 2018 10:58:13 PM
Old 09-16-2018
Use gdb. We could probably point you to your problem but you need to learn how to use gdb.
the commands you need are:
Quote:
break main <- stop right when the program starts.
step <- enter this repeatedly until you get a segfault.
print [varname] to view contents of a variable
help <- gives you more things to use to navigate
help [command] gives specific help.
compile & debug with
Code:
gcc filename.c -Wall -g -o filename
gdb filename
gdb>  break main
r 
[boom! it segfaults gdb will give you the exact line in the file]

Have fun.
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GZEXE(1)						      General Commands Manual							  GZEXE(1)

NAME
gzexe - compress executable files in place SYNOPSIS
gzexe name ... DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a penalty in performance). For example if you execute ``gzexe /usr/bin/gdb'' it will create the following two files: -rwxr-xr-x 1 root root 1026675 Jun 7 13:53 /usr/bin/gdb -rwxr-xr-x 1 root root 2304524 May 30 13:02 /usr/bin/gdb~ /usr/bin/gdb~ is the original file and /usr/bin/gdb is the self-uncompressing executable file. You can remove /usr/bin/gdb~ once you are sure that /usr/bin/gdb works properly. This utility is most useful on systems with very small disks. OPTIONS
-d Decompress the given executables instead of compressing them. SEE ALSO
gzip(1), znew(1), zmore(1), zcmp(1), zforce(1) CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the PATH environment variable to find gzip and some standard utilities (basename, chmod, ln, mkdir, mktemp, rm, sleep, and tail). BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases, using chmod or chown. GZEXE(1)
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