# Grand Central Dispatch (libdispatch)

<small>`<dispatch/dispatch.h>`</small>

Comprehensive support for concurrent code execution on multicore hardware.

* <a href="HeaderDoc/masterTOC.html">**Objective-C API documentation**</a>

:::{note}
The API documentation was built from [libdispatch for Swift 6.2, with patches applied to make the documentation work](https://github.com/ethanc8/swift-corelibs-libdispatch/tree/documentation) using [a slightly patched HeaderDoc](https://github.com/ethanc8/headerdoc/tree/gnustep). HeaderDoc must be installed to `/usr/local` and not inside a Conda environment (as far as I know) since Conda's packaging for perl seems to not work with HeaderDoc.
:::