> For the complete documentation index, see [llms.txt](https://guide.cronuszen.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.cronuszen.com/gpcscripting/gpc-script-guide/learn-gpc.md).

# Learn GPC

<figure><img src="/files/aLmdojnP0pgGFLab9XTt" alt=""><figcaption></figcaption></figure>

Learn the complete source language a piece at a time, from declarations and operators to functions, remaps, and combos.

***

Work through these pages in order the first time. Return directly to any page later as a reference.

* [Source layout and global namespace](/gpcscripting/gpc-script-guide/learn-gpc/source-layout-and-global-namespace.md)
* [Statements, blocks, and comments](/gpcscripting/gpc-script-guide/learn-gpc/statements-blocks-and-comments.md)
* [Runtime variables](/gpcscripting/gpc-script-guide/learn-gpc/runtime-variables.md)
* [Definitions](/gpcscripting/gpc-script-guide/learn-gpc/definitions.md)
* [Enumerations](/gpcscripting/gpc-script-guide/learn-gpc/enumerations.md)
* [Immutable const data](/gpcscripting/gpc-script-guide/learn-gpc/immutable-const-data.md)
* [Raw data section](/gpcscripting/gpc-script-guide/learn-gpc/raw-data-section.md)
* [`sizeof` and `addr`](/gpcscripting/gpc-script-guide/learn-gpc/sizeof-and-addr.md)
* [Boolean truth](/gpcscripting/gpc-script-guide/learn-gpc/boolean-truth.md)
* [Operators](/gpcscripting/gpc-script-guide/reference/language-and-operators.md)
* [Flow control](/gpcscripting/gpc-script-guide/learn-gpc/flow-control.md)
* [User-created functions](broken://pages/AXmcPwMgSa2b4W64wDtl)
* [`init` and `main`](/gpcscripting/gpc-script-guide/learn-gpc/init-and-main.md)
* [Remap and unmap](/gpcscripting/gpc-script-guide/learn-gpc/remap-and-unmap.md)
* [Combos and `fcombo`](/gpcscripting/gpc-script-guide/learn-gpc/combos-and-fcombo.md)
* [Compile-time versus runtime checklist](/gpcscripting/gpc-script-guide/learn-gpc/compile-time-versus-runtime-checklist.md)


---

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