Functor Tutorial

[Peter_APIIT]

Amleto has answers my question.

I made a mistake, the bind1st and bind2nd only accepts binary functor where my member function is a unary functor and the find_if.

I switch to boost now.

folderIconVecIte myIte 
  = find_if(iconPool.begin(), iconPool.end(), 
   boost::bind(
    boost::mem_fn(&folderIcon::IsExistFolderIconType),     
     _1, folderIconType)  );

Compile OK 

folderIconVecIte myIte 
  = find_if(iconPool.begin(), iconPool.end(), 
   boost::bind(
    boost::mem_fn(&folderIcon::IsExistFolderIconType),     
     _1)(folderIconType)  );

Compile Error - 2

Why the second one has compile error since i follow the bind documentation ?

Solve.