From 3e5647d88cde9834dea4a71088cf63413f859f4e Mon Sep 17 00:00:00 2001
From: Dave Gauer <dave@ratfactor.com>
Date: Wed, 12 May 2021 21:25:48 -0400
Subject: add ex086 async 3

---
 exercises/086_async3.zig | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 exercises/086_async3.zig

(limited to 'exercises')

diff --git a/exercises/086_async3.zig b/exercises/086_async3.zig
new file mode 100644
index 0000000..ae5a9a6
--- /dev/null
+++ b/exercises/086_async3.zig
@@ -0,0 +1,29 @@
+//
+// Because they can suspend and resume, async Zig functions are
+// an example of a more general programming concept called
+// "coroutines". One of the neat things about Zig async functions
+// is that they retain their state as they are suspended and
+// resumed.
+//
+// See if you can make this program print "5 4 3 2 1".
+//
+const print = @import("std").debug.print;
+
+pub fn main() void {
+    const n = 5;
+    var foo_frame = async foo(n);
+
+    ???
+
+    print("\n", .{});
+}
+
+fn foo(countdown: u32) void {
+    var current = countdown;
+
+    while (current > 0) {
+        print("{} ", .{current});
+        current -= 1;
+        suspend;
+    }
+}
-- 
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