name: cairo-functions
description: Explain Cairo function syntax, parameters, return values, statements vs expressions, and const fn; use when a request involves defining or calling functions, return types, or function-related compiler errors in Cairo.
Cairo Functions
Overview
Guide users through Cairo function definitions, calls, return values, and const functions with correct syntax and typing.
Quick Use
- Read
references/functions.mdbefore answering. - Show minimal, compile-ready snippets with correct parameter and return type annotations.
- Call out statement vs expression rules when return values are involved.
Response Checklist
- Include parameter types and return types where required.
- If returning a value, use a tail expression without a semicolon or an explicit
return. - If the user mentions named arguments, show
foo(x: value)orfoo(:x).
Example Requests
- "How do I return a value from a Cairo function?"
- "Can I call a function with named arguments?"
- "What is a
const fnin Cairo?"