Copyright 2013 -> 2014

[folly.git] / folly / test / ConcurrentSkipListBenchmark.cpp

diff --git a/folly/test/ConcurrentSkipListBenchmark.cpp b/folly/test/ConcurrentSkipListBenchmark.cpp
index 0eac9be1f5321ac99778350c71108c6c1dd62fad..362b384d90dd3cf91b8eb18904e027f440cee5a0 100644 (file)
--- a/folly/test/ConcurrentSkipListBenchmark.cpp
+++ b/folly/test/ConcurrentSkipListBenchmark.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright 2013 Facebook, Inc.
+ * Copyright 2014 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -350,6 +350,9 @@ class ConcurrentAccessData {
       if (i > 0) sets_[i] = sets_[0];
     }
 
+// This requires knowledge of the C++ library internals. Only use it if we're
+// using the GNU C++ library.
+#ifdef _GLIBCXX_SYMVER
     // memory usage
     int64_t setMemorySize = sets_[0].size() * sizeof(*sets_[0].begin()._M_node);
     int64_t cslMemorySize = 0;
@@ -360,6 +363,7 @@ class ConcurrentAccessData {
     LOG(INFO) << "size=" << sets_[0].size()
       << "; std::set memory size=" << setMemorySize
       << "; csl memory size=" << cslMemorySize;
+#endif
 
     readValues_.reserve(size);
     deleteValues_.reserve(size);