38 lines
900 B
Zig
38 lines
900 B
Zig
//
|
|
// Now that you know how "defer" works, let's do something more
|
|
// interesting with it.
|
|
//
|
|
const std = @import("std");
|
|
|
|
pub fn main() void {
|
|
const animals = [_]u8{ 'g', 'c', 'd', 'd', 'g', 'z' };
|
|
|
|
for (animals) |a| printAnimal(a);
|
|
|
|
std.debug.print("done.\n", .{});
|
|
}
|
|
|
|
// This function is _supposed_ to print an animal name in parentheses
|
|
// like "(Goat) ", but we somehow need to print the end parenthesis
|
|
// even though this function can return in four different places!
|
|
fn printAnimal(animal: u8) void {
|
|
std.debug.print("(", .{});
|
|
|
|
defer std.debug.print(") ", .{}); // <---- how?!
|
|
|
|
if (animal == 'g') {
|
|
std.debug.print("Goat", .{});
|
|
return;
|
|
}
|
|
if (animal == 'c') {
|
|
std.debug.print("Cat", .{});
|
|
return;
|
|
}
|
|
if (animal == 'd') {
|
|
std.debug.print("Dog", .{});
|
|
return;
|
|
}
|
|
|
|
std.debug.print("Unknown", .{});
|
|
}
|