code style: Don't use std:: inside .cpp files.
diff --git a/ndn-cpp/encoding/binary-xml-wire-format.cpp b/ndn-cpp/encoding/binary-xml-wire-format.cpp
index 9bd6759..b1f4007 100644
--- a/ndn-cpp/encoding/binary-xml-wire-format.cpp
+++ b/ndn-cpp/encoding/binary-xml-wire-format.cpp
@@ -41,7 +41,7 @@
   BinaryXmlEncoder encoder;
   ndn_Error error;
   if ((error = ndn_encodeBinaryXmlInterest(&interestStruct, &encoder)))
-    throw std::runtime_error(ndn_getErrorString(error));
+    throw runtime_error(ndn_getErrorString(error));
      
   return encoder.getOutput();
 }
@@ -59,7 +59,7 @@
   BinaryXmlDecoder decoder(input, inputLength);  
   ndn_Error error;
   if ((error = ndn_decodeBinaryXmlInterest(&interestStruct, &decoder)))
-    throw std::runtime_error(ndn_getErrorString(error));
+    throw runtime_error(ndn_getErrorString(error));
 
   interest.set(interestStruct);
 }
@@ -78,7 +78,7 @@
   BinaryXmlEncoder encoder;
   ndn_Error error;
   if ((error = ndn_encodeBinaryXmlData(&dataStruct, signedPortionBeginOffset, signedPortionEndOffset, &encoder)))
-    throw std::runtime_error(ndn_getErrorString(error));
+    throw runtime_error(ndn_getErrorString(error));
      
   return encoder.getOutput();
 }
@@ -97,7 +97,7 @@
   BinaryXmlDecoder decoder(input, inputLength);  
   ndn_Error error;
   if ((error = ndn_decodeBinaryXmlData(&dataStruct, signedPortionBeginOffset, signedPortionEndOffset, &decoder)))
-    throw std::runtime_error(ndn_getErrorString(error));
+    throw runtime_error(ndn_getErrorString(error));
 
   data.set(dataStruct);
 }
@@ -114,7 +114,7 @@
   BinaryXmlEncoder encoder;
   ndn_Error error;
   if ((error = ndn_encodeBinaryXmlForwardingEntry(&forwardingEntryStruct, &encoder)))
-    throw std::runtime_error(ndn_getErrorString(error));
+    throw runtime_error(ndn_getErrorString(error));
      
   return encoder.getOutput();
 }
@@ -130,7 +130,7 @@
   BinaryXmlDecoder decoder(input, inputLength);  
   ndn_Error error;
   if ((error = ndn_decodeBinaryXmlForwardingEntry(&forwardingEntryStruct, &decoder)))
-    throw std::runtime_error(ndn_getErrorString(error));
+    throw runtime_error(ndn_getErrorString(error));
 
   forwardingEntry.set(forwardingEntryStruct);
 }