commit 5f24bb121e1f55b624e5e2da1789c1be415ffdf9
author Craig Tiller <ctiller@google.com> Thu May 11 15:14:32 2017 -0700
committer Craig Tiller <ctiller@google.com> Thu May 11 15:14:32 2017 -0700
tree f15ed45fbd8fa6afb85584107b2e5f707a9dcbed
parent 0ccaff9cb6aba24214156dbf1327696e451d49f5

just use char* overload

test/cpp/microbenchmarks/helpers.cc

diff --git a/test/cpp/microbenchmarks/helpers.cc b/test/cpp/microbenchmarks/helpers.cc
index b68c40a..73ab9e4 100644
--- a/test/cpp/microbenchmarks/helpers.cc
+++ b/test/cpp/microbenchmarks/helpers.cc
@@ -40,7 +40,7 @@
   if (label.length() && label[0] == ' ') {
     label = label.substr(1);
   }
-  state.SetLabel(label);
+  state.SetLabel(label.c_str());
 }
 
 void TrackCounters::AddToLabel(std::ostream &out, benchmark::State &state) {