Is naming variables after their type a bad practice?

Question

I\'m programming C++ using the underscore naming style (as opposed to camel case) which is also used by the STL and boost. However, since both types and variables/functions are

Answer 1

The local meaning is rarely a good unique global description of the type:

cartesian_point_2d position;  // rectangular, not polar coordinates
mouse_over(ui_entity entity); // not a business layer entity
xyz_manager& manager;         // what's a manager without something to manage?
audio_system audio;