#include <vtkSystemIncludes.h>
The vtkSystemIncludes centralizes the inclusion of system include files. (This is particularly important as VTK moves towards ANSI C++.) For example, this include file enables user's to build VTK with STL (i.e., use std: :ostream and other standard ANSI C++ functionality). A configured flag in vtkConfigure.h (VTK_USE_ANSI_STDLIB) must be set to enable ANSI C++ compliance.
.h (/Common/vtkSystemIncludes
.h)