set.h:15:  Weird number of spaces at line-start.  Are you using a 2-space indent?  [whitespace/indent] [3]
set.h:15:  Line ends in whitespace.  Consider deleting these extra spaces.  [whitespace/end_of_line] [4]
set.h:15:  Do not leave a blank line after "public:"  [whitespace/blank_line] [3]
set.h:17:  Missing space around colon in range-based for loop  [whitespace/forcolon] [2]
set.h:35:  Missing space around colon in range-based for loop  [whitespace/forcolon] [2]
set.h:36:  Missing space around colon in range-based for loop  [whitespace/forcolon] [2]
set.h:50:  Missing space around colon in range-based for loop  [whitespace/forcolon] [2]
set.h:52:  Missing space around colon in range-based for loop  [whitespace/forcolon] [2]
set.h:89:  Missing space around colon in range-based for loop  [whitespace/forcolon] [2]
Done processing set.h
Total errors found: 9