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-//
-// Now let's use pointers to do something we haven't been
-// able to do before: pass a value by reference to a function!
-//
-const std = @import("std");
-
-pub fn main() void {
- var num: u8 = 1;
- var more_nums = [_]u8{ 1, 1, 1, 1 };
-
- // Let's pass a reference to num to our function and print it:
- makeFive(&num);
- std.debug.print("num: {}, ", .{num});
-
- // Now something interesting. Let's pass a reference to a
- // specific array value:
- makeFive(&more_nums[2]);
-
- // And print the array:
- std.debug.print("more_nums: ", .{});
- for (more_nums) |n| {
- std.debug.print("{} ", .{n});
- }
-
- std.debug.print("\n", .{});
-}
-
-// This function should take a reference to a u8 value and set it
-// to 5.
-fn makeFive(x: *u8) void {
- ??? = 5; // fix me!
-}