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authorDave Gauer <dave@ratfactor.com>2021-02-09 18:36:57 -0500
committerDave Gauer <dave@ratfactor.com>2021-02-09 18:36:57 -0500
commit55ad7c32f2d534b1fbd438204d21738f958c51a5 (patch)
tree16be4b53193105a759b3eec25be5e664d41c428d /40_pointers2.zig
parentcf0920de31e9b5f3c5ba6de19a1b4c8d0c58b907 (diff)
Moved exercises to exercises because exercises
Diffstat (limited to '40_pointers2.zig')
-rw-r--r--40_pointers2.zig27
1 files changed, 0 insertions, 27 deletions
diff --git a/40_pointers2.zig b/40_pointers2.zig
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--- a/40_pointers2.zig
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@@ -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.*});
-}