From 922f69387dab9f751ab110055d5b9638dbae6a78 Mon Sep 17 00:00:00 2001
From: Brian Anderson <andersrb@gmail.com>
Date: Sun, 13 Mar 2011 18:29:10 -0400
Subject: Add _int.pow

---
 src/lib/_int.rs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'src/lib')

diff --git a/src/lib/_int.rs b/src/lib/_int.rs
index ee660f01..ef1b3b66 100644
--- a/src/lib/_int.rs
+++ b/src/lib/_int.rs
@@ -34,6 +34,23 @@ fn to_str(mutable int n, uint radix) -> str
     }
 }
 
+fn pow(int base, uint exponent) -> int {
+
+    if (exponent == 0u) {
+        ret 1;
+    } else if (base == 0) {
+        ret 0;
+    } else {
+        auto accum = base;
+        auto count = exponent;
+        while (count > 1u) {
+            accum *= base;
+            count -= 1u;
+        }
+        ret accum;
+    }
+}
+
 // Local Variables:
 // mode: rust;
 // fill-column: 78;
-- 
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