From f40482aa29f687b4630744457844bad7f45ec614 Mon Sep 17 00:00:00 2001
From: Ginger Bill <bill@gingerbill.org>
Date: Thu, 6 Oct 2016 23:30:22 +0100
Subject: Maybe types; value, ok := maybe_value(x)

---
 code/demo.odin | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

(limited to 'code')

diff --git a/code/demo.odin b/code/demo.odin
index 0d0ed6735..9b9566faa 100644
--- a/code/demo.odin
+++ b/code/demo.odin
@@ -1,15 +1,15 @@
 #import "fmt.odin"
 
-A :: {2}f32{1, 2}
-B :: {2}f32{3, 4}
-
 main :: proc() {
-	Fruit :: union {
-		A: int
-		B: f32
-		C: struct {
-			x: int
+	maybe_print :: proc(x: ?int) {
+		if v, ok := maybe_value(x); ok {
+			fmt.println(v)
+		} else {
+			fmt.println("nowt")
 		}
 	}
+
+	maybe_print(123) // 123
+	maybe_print(nil) // nowt
 }
 
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