// License: AGPLv3 or later. https://www.gnu.org/licenses/licenses.html

Compile on UOW Banshee server using either of the following command in terminal/shell:
$ make
OR
$ CC -std=c++11 -o ABC driver.cpp abc.cpp general_functions.cpp

As per test on my machine using folowwing code, there is no memory leak:
$ valgrind --tool=memcheck ./ABC Students.txt Subjects.txt Teachers.txt Results.txt

However, there is leak when running bcheck on banshee. This could be because of bug in compiler CC.

Documentation:

Commenting explaning functions use and rational are in header files. Comments explaning implementation of functions are in cpp files.

Exit codes error list:
(Read standard error output to find the exact reason of errors.)
1 - Error related to arguments recived
2 - Error while reading file
3 - Error while processing subjects file lines string into subject structs
4 - Error while processing teachers file lines string into teacher structs
5 - Subject code in student's subject list or teacher's subject list is out of range (more than number of subjects)
6 - Error while writting results to output-file