Languages / Knowledge library
Garbage Collection
Automatically reclaims memory no longer reachable by a program
Why learn Garbage Collection?
It prevents many manual deallocation errors
The problem it solves
It recovers unused heap storage without explicit frees in application code
Where it came from
Garbage Collection is a programming language and runtime concept that automatically reclaims memory no longer reachable by a program. Its guarantees and tradeoffs depend on the concrete implementation and operating context.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Define Garbage Collection and distinguish it from a neighboring concept.
- Choose a realistic task where Garbage Collection is appropriate.
- Identify a failure mode caused by misusing Garbage Collection.
- Interpret a small design or result involving Garbage Collection.
- Explain one tradeoff or limitation of Garbage Collection.
Documentation and sources
- LLVM Language Reference Manual (llvm.org)