prime_gen.h:2:  public: should be indented +1 space inside class PrimeNumberGenerator  [whitespace/indent] [3]
prime_gen.h:16:  private: should be indented +1 space inside class PrimeNumberGenerator  [whitespace/indent] [3]
prime_gen.h:20:  { should almost always be at the end of the previous line  [whitespace/braces] [4]
prime_gen.h:21:  Missing spaces around <=  [whitespace/operators] [3]
prime_gen.h:24:  Missing spaces around ==  [whitespace/operators] [3]
prime_gen.h:27:  Missing spaces around <=  [whitespace/operators] [3]
Done processing prime_gen.h
Total errors found: 6