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# Valgrind

Valgrind is super useful for debugging native programs. Valgrind can be used to uncover memory leaks, concurrency issues and a lot more.

## How valgrind works

* [The design and implementation of Valgrind](https://courses.cs.washington.edu/courses/cse326/05wi/valgrind-doc/mc_techdocs.html)

## Usage

* Checking for memory leaks of a program (`hello`),

  ```bash
  valgrind --leak-check=full ./hello
  ```

  If you see a message like, *All heap blocks were freed -- no leaks are possible*, then your program is probably leak free!