From 0efd7fac8a3dbcf7c8bd19ea2ace05e4898bafae Mon Sep 17 00:00:00 2001
From: Brian Anderson <banderson@mozilla.com>
Date: Thu, 16 Jun 2011 10:52:43 -0700
Subject: stdlib: Add option::is_some

---
 src/lib/option.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/lib/option.rs b/src/lib/option.rs
index 561456799f4..30066f4e196 100644
--- a/src/lib/option.rs
+++ b/src/lib/option.rs
@@ -21,6 +21,10 @@ fn is_none[T](&t[T] opt) -> bool {
     ret alt (opt) { case (none) { true } case (some(_)) { false } };
 }
 
+fn is_some[T](&t[T] opt) -> bool {
+    ret !is_none(opt);
+}
+
 fn from_maybe[T](&T def, &t[T] opt) -> T {
     auto f = bind util::id[T](_);
     ret maybe[T, T](def, f, opt);
-- 
cgit 1.4.1-3-g733a5