num.cpp:11:  Lines should be <= 80 characters long  [whitespace/line_length] [2]
num.cpp:57:  Extra space after (  [whitespace/parens] [2]
num.cpp:57:  Extra space before )  [whitespace/parens] [2]
num.cpp:59:  Tab found; better to use spaces  [whitespace/tab] [1]
num.cpp:59:  Extra space after (  [whitespace/parens] [2]
num.cpp:59:  Extra space before )  [whitespace/parens] [2]
num.cpp:14:  Add #include <utility> for swap  [build/include_what_you_use] [4]
Done processing num.cpp
Total errors found: 7