ziglings/exercises/028_defer2.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", .{});
}