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The presented function has a mechanism for verifying whether the divisor (denominator) is equal to zero or is close to zero in the case of a floating-point number. In case the condition evaluates to True, an exception is thrown. To implement the exception, include the <stdexcept> library. Under normal circumstances, the output value is computed and returned as floating point in both cases.
tests:
We also need to create a folder for our tests. In this tutorial, this folder is called tst. To start writing tests, we will create run_tests.cpp and test_operations.cpp. We want GoogleTest to search for test files automatically, and we do this thanks to the code stored in the run_tests.cpp source file. Typically, this code will be universal for all kinds of projects:
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