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The Garbage Clearance Model

A high-level method of resource management, typified by Lisp and Java, is garbage-clearance. This has the advantage of taking the problem right away from the programmer and transferring it to the language itself, so the danger of crippling programming errors is removed altogether. As against that it is a substantial overhead even where it isn't necessary, and it deprives the programmer of useful levels of control, such as the ability to control the lifetime of a resource. It also requires that all program components - including third-party libraries - are built on the same system, which is clearly not possible in an open system written in C.