Zig Academy · Lesson

Const Pointers and Alignment

Express read-only access and layout.

Read-Only Access

Often you want to share a value but promise not to change it. A const pointer grants read access while forbidding writes.

Write a pointer to immutable data as *const T. You can read through it, but assigning to its target is a compile error.

const x: i32 = 5;
const p: *const i32 = &x;