zig-comptime

Guide Zig comptime for compile-time evaluation, metaprogramming, and generic programming.

159|20|Updated Feb 20, 2026
One-click install
npx skills add https://github.com/mohitmishra786/low-level-dev-skills --skill zig-comptime
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: zig-comptime
Source: https://github.com/mohitmishra786/low-level-dev-skills/tree/main/skills/zig/zig-comptime
Command: npx skills add https://github.com/mohitmishra786/low-level-dev-skills --skill zig-comptime

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps developers leverage Zig's powerful comptime feature for compile-time evaluation, metaprogramming, and generic programming, enabling more efficient and expressive code.

Core Features & Use Cases

  • Compile-Time Evaluation: Execute code during compilation to pre-compute values, perform checks, and generate data.
  • Metaprogramming: Write code that writes or manipulates other code at compile time, similar to macros but with type safety.
  • Generics & anytype: Create flexible functions and data structures that work with multiple types, inferred at compile time.
  • Type Reflection: Inspect and analyze types at compile time using @typeInfo to enable conditional logic or code generation.
  • Use Case: Generate a lookup table for trigonometric functions at compile time, or create a generic stack data structure that can hold any type, all processed before runtime.

Quick Start

Use the zig-comptime skill to explain how to define a generic function in Zig using comptime type parameters.

Frequently Asked Questions about zig-comptime

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I use Zig comptime for generic programming with anytype?▼

Zig comptime enables generic programming by using `anytype` parameters, allowing the compiler to infer types and generate type-specific code at compile time. This creates flexible functions and data structures without runtime overhead.

What is type reflection in Zig and how does @typeInfo work?▼

Type reflection in Zig uses the `@typeInfo` builtin to inspect and analyze types at compile time. It returns a tagged union describing the type's structure, enabling conditional logic and code generation during compilation.

How does Zig metaprogramming compare to C++ templates?▼

Zig metaprogramming uses comptime to execute code during compilation, providing type-safe code generation similar to C++ templates. It replaces macro-based generation with explicit compile-time evaluation and type reflection.

Can I generate lookup tables at compile time in Zig?▼

Yes, you can generate lookup tables at compile time in Zig. By executing loops and calculations within a comptime block, the results are pre-computed and embedded directly into the binary, eliminating runtime calculation overhead.

When should I use comptime parameters in Zig functions?▼

Use comptime parameters in Zig functions when values must be known at compilation to influence type generation or control flow. This allows the compiler to produce optimized, type-safe code tailored to specific compile-time constants.