date.h:8:  Is this a non-const reference? If so, make const or use a pointer: int& y  [runtime/references] [2]
date.h:8:  Is this a non-const reference? If so, make const or use a pointer: int& m  [runtime/references] [2]
date.h:8:  Is this a non-const reference? If so, make const or use a pointer: int& d  [runtime/references] [2]
date.h:21:  Lines should be <= 80 characters long  [whitespace/line_length] [2]
date.h:22:  Lines should be <= 80 characters long  [whitespace/line_length] [2]
date.h:23:  Missing space before ( in if(  [whitespace/parens] [5]
date.h:25:  Missing space before ( in if(  [whitespace/parens] [5]
date.h:27:  Missing space before ( in if(  [whitespace/parens] [5]
date.h:56:  You don't need a ; after a }  [readability/braces] [4]
date.h:68:  Is this a non-const reference? If so, make const or use a pointer: int& y  [runtime/references] [2]
date.h:68:  Is this a non-const reference? If so, make const or use a pointer: int& m  [runtime/references] [2]
date.h:68:  Is this a non-const reference? If so, make const or use a pointer: int& d  [runtime/references] [2]
date.h:75:  Using deprecated casting style.  Use static_cast<int>(...) instead  [readability/casting] [4]
date.h:76:  Using deprecated casting style.  Use static_cast<int>(...) instead  [readability/casting] [4]
date.h:77:  Using deprecated casting style.  Use static_cast<int>(...) instead  [readability/casting] [4]
date.h:20:  Add #include <string> for string  [build/include_what_you_use] [4]
Done processing date.h
Total errors found: 16