CODE EXAMPLE FOR CPP

iomanip header file in c++

The header <iomanip> is part of the Input/output library of the C++
  Standard Library. It defines the manipulator functions resetiosflags() 
  , setiosflags() , setbase() , setfill() , setprecision() , and setw() 
  . These functions may be conveniently used by C++ programs to affect 
  the state of iostream objects.