23 Jan
                
                    2015
                
            
            
                23 Jan
                
                '15
                
            
            
            
        
    
                1:12 a.m.
            
        On Thu, Jan 22, 2015 at 4:09 PM, Matt Calabrese <rivorus@gmail.com> wrote:
For instance, you can use it to easily do:
template <class T> struct has_preincrement_operator : std::integral_constant<bool, IS_VALID_EXPR((T) object, ++a)> {};
Woops, typo there. That should say "++object" or object should have been declared with the name "a"