programming Code which is combined with another piece of

code to determine how that code is executed. The wrapper

acts as an interface between its caller and the wrapped code.

This may be done for compatibility, e.g. if the wrapped code

is in a different programming language or uses different

calling conventions, or for security, e.g. to prevent the

calling program from executing certain functions. The

implication is that the wrapped code can only be accessed via

the wrapper.