prime_gen.h:5:  "public:" should be preceded by a blank line  [whitespace/blank_line] [3]
prime_gen.h:6:  Weird number of spaces at line-start.  Are you using a 2-space indent?  [whitespace/indent] [3]
prime_gen.h:6:  Line ends in whitespace.  Consider deleting these extra spaces.  [whitespace/end_of_line] [4]
prime_gen.h:6:  Do not leave a blank line after "public:"  [whitespace/blank_line] [3]
Done processing prime_gen.h
Total errors found: 4