Test Coverage in C/C++ Code

To investigate test coverage, you can use basic block profiling.

Compile with gcc -pg -g -fprofile-arcs -ftest-coverage
Execute program; a file name.bb will be created
Execute program; a file name.bb will be created
Run gcov -n name.bb
You will get a report of how many lines were executed

Example:

 83.33% of 650 source lines executed in file hilbert.c