THRIFT-2221: detect C++11 and use std namespace for memory operations (smart_ptr)
Client: C++

This closes #1328
diff --git a/lib/cpp/test/processor/EventLog.cpp b/lib/cpp/test/processor/EventLog.cpp
index 360307a..e3ddbcc 100644
--- a/lib/cpp/test/processor/EventLog.cpp
+++ b/lib/cpp/test/processor/EventLog.cpp
@@ -21,7 +21,6 @@
 #include <stdarg.h>
 #include <stdlib.h>
 
-using namespace std;
 using namespace apache::thrift::concurrency;
 
 namespace {
@@ -82,7 +81,7 @@
 void EventLog::append(EventType type,
                       uint32_t connectionId,
                       uint32_t callId,
-                      const string& message) {
+                      const std::string& message) {
   Synchronized s(monitor_);
   debug("%d <-- %u, %u, %s \"%s\"", id_, connectionId, callId, type, message.c_str());