diff options
| -rw-r--r-- | exercises/51_values.zig | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/exercises/51_values.zig b/exercises/51_values.zig index fea371b..7fb1ffb 100644 --- a/exercises/51_values.zig +++ b/exercises/51_values.zig @@ -85,9 +85,9 @@ pub fn main() void { // Now let's circle back around to that "std" struct we imported // at the top. Since it's just a regular Zig value once it's - // imported, we can also assign new names for its fields. The - // "debug" field refers to another struct. And "print" is a public - // function namespaced within THAT struct. + // imported, we can also assign new names for its fields and + // declarations. "debug" refers to another struct and "print" is a + // public function namespaced within THAT struct. // // Let's assign the std.debug.print function to a const named // "print" so that we can use this new name later! @@ -131,13 +131,21 @@ pub fn main() void { // "glorp_access3" is interesting. It's also a pointer, but it's a // const. Won't that disallow changing the gold value? No! As you // may recall from our earlier pointer experiments, a constant - // pointer can't change what it's pointing AT, but the value at + // pointer can't change what it's POINTING AT, but the value at // the address it points to is still mutable! So we CAN change it. const glorp_access3: *Character = &glorp; glorp_access3.gold = 333; print("3:{}!. ", .{glorp.gold == glorp_access3.gold}); + // NOTE: + // + // If we tried to do this with a *const Character pointer, + // that would NOT work because that makes the data we would + // get a compiler error because the VALUE becomes immutable! + // + // Moving along... + // // Passing arguments to functions is pretty much exactly like // making an assignment to a const (since Zig enforces that ALL // function parameters are const). |