Create a cpp source file with main function and name it main.cpp
Build source with gcov enabled
g++ -Wall -fprofile-arcs -ftest-coverage
main.cpp
It
will generate main.gcno file
Run binary
./a.out
It
will generate main.gcda file
Run gcov for the source file
gcov
main.cpp
it
will generate main.cpp.gcov file
Open main.cpp.gcov and analyse ##### lines for un tested
code lines.
