jumpnbrownweasel

const std = @import("std");
const expectEqual = std.testing.expectEqual;

/// Called instead of ArenaAllocator.init to ensure that the arena allocator
/// does not become invalid when the arena struct is moved.
///
/// The ArenaAllocator is placed in the arena itself, and therefore the returned
/// pointer to the arena is stable. This means the allocator returned by
/// arena.allocator(), which contains a pointer to the arena struct, is also
/// stable.