Zig Academy · Lesson

Why Zig Has No Hidden Allocations

Allocation is always passed in.

Memory Is Explicit

In Zig, no standard library function quietly grabs heap memory. If code needs to allocate, it must say so out loud. 📦

Anything that allocates takes an allocator as a parameter. Memory cannot appear unless you hand a function the tool to make it.

fn buildList(allocator: std.mem.Allocator) !void {}