1 files changed, 52 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/framing/Endian.cpp b/qpid/cpp/src/qpid/framing/Endian.cpp
new file mode 100644
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--- /dev/null
+++ b/qpid/cpp/src/qpid/framing/Endian.cpp
@@ -0,0 +1,52 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+#include "qpid/framing/Endian.h"
+
+namespace qpid {
+namespace framing {
+
+Endian::Endian() : littleEndian(!testBigEndian()) {}
+
+bool Endian::testBigEndian()
+{
+    uint16_t a = 1;
+    uint16_t b;
+    uint8_t* p = (uint8_t*) &b;
+    p[0] = 0xFF & (a >> 8);
+    p[1] = 0xFF & (a);
+    return a == b;
+}
+
+uint8_t* Endian::convertIfRequired(uint8_t* const octets, int width)
+{
+    if (instance.littleEndian) {
+        for (int i = 0; i < (width/2); i++) {
+            uint8_t temp = octets[i];
+            octets[i] = octets[width - (1 + i)];
+            octets[width - (1 + i)] = temp;
+        }
+    }
+    return octets;
+}
+
+const Endian Endian::instance;
+
+}} // namespace qpid::framing