3 #ifndef __CDS_DETAILS_STD_CHRONO_H
4 #define __CDS_DETAILS_STD_CHRONO_H
8 #include <cds/details/defs.h>
10 #ifdef CDS_CXX11_STDLIB_CHRONO
13 namespace chrono = std::chrono;
16 # include <boost/chrono.hpp>
18 namespace chrono = boost::chrono;
24 #endif // #ifndef __CDS_DETAILS_STD_CHRONO_H