Added a comment to cpplib.h file.
Index: cpplib.h =================================================================== --- cpplib.h (revision 208118) +++ cpplib.h (working copy) @@ -103,7 +103,7 @@ OP(SEMICOLON, ";") /* structure */ \ OP(ELLIPSIS, "...") \ OP(PLUS_PLUS, "++") /* increment */ \ - OP(MINUS_MINUS, "--") \ + OP(MINUS_MINUS, "--") /* decrement */ \ OP(DEREF, "->") /* accessors */ \ OP(DOT, ".") \ OP(SCOPE, "::") \