prime_gen.h:2:  public: should be indented +1 space inside class PrimeNumberGenerator  [whitespace/indent] [3]
prime_gen.h:5:  You don't need a ; after a }  [readability/braces] [4]
prime_gen.h:19:  You don't need a ; after a }  [readability/braces] [4]
Done processing prime_gen.h
Total errors found: 3