---
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title: Fun - cast_demo.fun — overview
subtitle: Documentation for cast_demo.fun — overview
description: Documentation for cast_demo.fun — overview
permalink: /documentation/examples/cast_demo/
lang: en
tags:
- documentation
- handbook
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- usage
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- help
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---

# cast_demo.fun — overview

What it shows
- Conversions and casting helpers; demonstrates changing between numeric and string types safely.

How to run
- export FUN_LIB_DIR="./lib"
- ./build_debug/fun examples/cast_demo.fun
- Or: fun examples/cast_demo.fun