diff --git a/exercises/040_pointers2.zig b/exercises/040_pointers2.zig index 43dd2c3..a4852f6 100644 --- a/exercises/040_pointers2.zig +++ b/exercises/040_pointers2.zig @@ -12,10 +12,12 @@ // &foo is of type "*u8" // &bar is of type "*const u8" // -// You can always make a constant pointer to a variable, but you cannot -// make a variable pointer to a constant. This sounds like a logic puzzle, -// but it just means that once data is declared immutable, you can't -// coerce it to a mutable type. It's a safety thing (to prevent mistakes). +// You can always make a const pointer to a mutable value (var), but +// you cannot make a var pointer to an immutable value (const). +// This sounds like a logic puzzle, but it just means that once data +// is declared immutable, you can't coerce it to a mutable type. +// Think of mutable data as being volatile or even dangerous. Zig +// always lets you be "more safe" and never "less safe." // const std = @import("std");