max@0: // Copyright (C) 2008-2012 NICTA (www.nicta.com.au)
max@0: // Copyright (C) 2008-2012 Conrad Sanderson
max@0: // 
max@0: // This file is part of the Armadillo C++ library.
max@0: // It is provided without any warranty of fitness
max@0: // for any purpose. You can redistribute this file
max@0: // and/or modify it under the terms of the GNU
max@0: // Lesser General Public License (LGPL) as published
max@0: // by the Free Software Foundation, either version 3
max@0: // of the License or (at your option) any later version.
max@0: // (see http://www.opensource.org/licenses for more info)
max@0: 
max@0: 
max@0: //! \addtogroup wall_clock
max@0: //! @{
max@0: 
max@0: 
max@0: inline
max@0: wall_clock::wall_clock()
max@0:   : valid(false)
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: inline
max@0: wall_clock::~wall_clock()
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: inline
max@0: void
max@0: wall_clock::tic()
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   #if defined(ARMA_USE_BOOST_DATE)
max@0:     {
max@0:     boost_time1 = boost::posix_time::microsec_clock::local_time();
max@0:     valid = true;
max@0:     }
max@0:   #elif defined(ARMA_HAVE_GETTIMEOFDAY)
max@0:     {
max@0:     gettimeofday(&posix_time1, 0);
max@0:     valid = true;
max@0:     }
max@0:   #else
max@0:     {
max@0:     time1 = clock();
max@0:     valid = true;
max@0:     }
max@0:   #endif
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: inline
max@0: double
max@0: wall_clock::toc()
max@0:   {
max@0:   arma_extra_debug_sigprint();
max@0:   
max@0:   if(valid)
max@0:     {
max@0:     #if defined(ARMA_USE_BOOST_DATE)
max@0:       {
max@0:       boost_duration = boost::posix_time::microsec_clock::local_time() - boost_time1;
max@0:       return boost_duration.total_microseconds() * 1e-6;
max@0:       }
max@0:     #elif defined(ARMA_HAVE_GETTIMEOFDAY)
max@0:       {
max@0:       gettimeofday(&posix_time2, 0);
max@0:       
max@0:       const double tmp_time1 = posix_time1.tv_sec + posix_time1.tv_usec * 1.0e-6;
max@0:       const double tmp_time2 = posix_time2.tv_sec + posix_time2.tv_usec * 1.0e-6;
max@0:       
max@0:       return tmp_time2 - tmp_time1;
max@0:       }
max@0:     #else
max@0:       {
max@0:       clock_t time2 = clock();
max@0:       
max@0:       clock_t diff = time2 - time1;
max@0:       
max@0:       return double(diff) / double(CLOCKS_PER_SEC);
max@0:       }
max@0:     #endif
max@0:     }
max@0:   else
max@0:     {  
max@0:     return 0.0;
max@0:     }
max@0:   }
max@0: 
max@0: 
max@0: 
max@0: //! @}
max@0: