From 55ad7c32f2d534b1fbd438204d21738f958c51a5 Mon Sep 17 00:00:00 2001 From: Dave Gauer Date: Tue, 9 Feb 2021 18:36:57 -0500 Subject: Moved exercises to exercises because exercises --- 40_pointers2.zig | 27 --------------------------- 1 file changed, 27 deletions(-) delete mode 100644 40_pointers2.zig (limited to '40_pointers2.zig') diff --git a/40_pointers2.zig b/40_pointers2.zig deleted file mode 100644 index b046dc1..0000000 --- a/40_pointers2.zig +++ /dev/null @@ -1,27 +0,0 @@ -// -// It's important to note that variable pointers and constant pointers -// are different types. -// -// Given: -// -// var foo: u8 = 5; -// const bar: u8 = 5; -// -// Then: -// -// &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). -// -const std = @import("std"); - -pub fn main() void { - const a: u8 = 12; - const b: *u8 = &a; // fix this! - - std.debug.print("a: {}, b: {}\n", .{a, b.*}); -} -- cgit v1.2.3-ZIG