221V 6 days ago
parent
commit
84b5bd3edf
1 changed files with 20 additions and 19 deletions
  1. 20 19
      exercises/056_unions2.zig

+ 20 - 19
exercises/056_unions2.zig

@@ -32,29 +32,29 @@ const std = @import("std");
 
 const InsectStat = enum { flowers_visited, still_alive };
 
-const Insect = union(InsectStat) {
-    flowers_visited: u16,
-    still_alive: bool,
+const Insect = union(InsectStat){
+  flowers_visited: u16,
+  still_alive: bool,
 };
 
-pub fn main() void {
-    const ant = Insect{ .still_alive = true };
-    const bee = Insect{ .flowers_visited = 16 };
-
-    std.debug.print("Insect report! ", .{});
-
-    // Could it really be as simple as just passing the union?
-    printInsect(???);
-    printInsect(???);
-
-    std.debug.print("\n", .{});
+pub fn main() void{
+  const ant = Insect{ .still_alive = true };
+  const bee = Insect{ .flowers_visited = 16 };
+  
+  std.debug.print("Insect report! ", .{});
+  
+  // Could it really be as simple as just passing the union?
+  printInsect(ant);
+  printInsect(bee);
+  
+  std.debug.print("\n", .{});
 }
 
-fn printInsect(insect: Insect) void {
-    switch (???) {
-        .still_alive => |a| std.debug.print("Ant alive is: {}. ", .{a}),
-        .flowers_visited => |f| std.debug.print("Bee visited {} flowers. ", .{f}),
-    }
+fn printInsect(insect: Insect) void{
+  switch(insect){
+    .still_alive => |a| std.debug.print("Ant alive is: {}. ", .{a}),
+    .flowers_visited => |f| std.debug.print("Bee visited {} flowers. ", .{f}),
+  }
 }
 
 // By the way, did unions remind you of optional values and errors?
@@ -62,3 +62,4 @@ fn printInsect(insect: Insect) void {
 // union types". Now we can add our own unions to the mix to handle
 // whatever situations we might encounter:
 //          union(Tag) { value: u32, toxic_ooze: void }
+