From b03812af2b65a31c567945a1c41515602ff92c20 Mon Sep 17 00:00:00 2001
From: Michael Bebenita <mbebenita@mozilla.com>
Date: Tue, 7 Sep 2010 18:18:37 -0700
Subject: Change signature of array_list::pop().

---
 src/rt/util/array_list.h | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

(limited to 'src/rt/util/array_list.h')

diff --git a/src/rt/util/array_list.h b/src/rt/util/array_list.h
index 929117f3..d44111e8 100644
--- a/src/rt/util/array_list.h
+++ b/src/rt/util/array_list.h
@@ -15,7 +15,7 @@ public:
     size_t size();
     int32_t append(T value);
     int32_t push(T value);
-    T pop();
+    bool pop(T *value);
     bool replace(T old_value, T new_value);
     int32_t index_of(T value);
     bool is_empty();
@@ -54,10 +54,17 @@ array_list<T>::push(T value) {
     return _size - 1;
 }
 
-template<typename T> T
-array_list<T>::pop() {
-    T value = _data[-- _size];
-    return value;
+template<typename T> bool
+array_list<T>::pop(T *value) {
+    if (_size == 0) {
+        return false;
+    }
+    if (value != NULL) {
+        *value = _data[-- _size];
+    } else {
+        -- _size;
+    }
+    return true;
 }
 
 /**
-- 
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