Chapter 10. What `comptime` Means

A Zig program runs in two stages.

7 items

Section	Title
1	What `comptime` Means
2	Compile-Time Parameters
3	Types as Values
4	Inline Loops
5	Reflection
6	Generating Declarations
7	Exercises

Writes › Book › Learn › Learn Zig › Chapter 10. What `comptime` Means ›

What `comptime` Means

A Zig program runs in two stages.

Writes › Book › Learn › Learn Zig › Chapter 10. What `comptime` Means ›

Compile-Time Parameters

A function parameter can be marked comptime.

Writes › Book › Learn › Learn Zig › Chapter 10. What `comptime` Means ›

Types as Values

In Zig, a type is a value.

Writes › Book › Learn › Learn Zig › Chapter 10. What `comptime` Means ›

Inline Loops

A normal loop runs while the program runs.

Writes › Book › Learn › Learn Zig › Chapter 10. What `comptime` Means ›

Reflection

Reflection means inspecting a type from inside the program.

Writes › Book › Learn › Learn Zig › Chapter 10. What `comptime` Means ›

Generating Declarations

A Zig function can return a type.

Writes › Book › Learn › Learn Zig › Chapter 10. What `comptime` Means ›

Exercises

1. Write a program that computes several Fibonacci numbers with comptime. Print the results at runtime.