ROL_TimeStamp.hpp

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#pragma once
#ifndef ROL_TIMESTAMP_HPP
#define ROL_TIMESTAMP_HPP


#include <vector>

namespace ROL {

template<typename Real>
struct TimeStamp {

  using size_type = typename std::vector<Real>::size_type;

  size_type         k;   // Time-step number  
  std::vector<Real> t;   // Time points for this time step

  static ROL::Ptr<std::vector<TimeStamp<Real>>> make_uniform( Real t_initial, Real t_final, const std::vector<Real>& t_ref, size_type num_steps ) {

    auto timeStamp = ROL::makePtr<std::vector<ROL::TimeStamp<Real>>>(num_steps);
  
    Real dt = (t_final-t_initial)/num_steps; // size of each time step
    size_type nt = t_ref.size();             // number of time points per step
  
    for( size_type k=0; k<num_steps; ++k ) {
      (*timeStamp)[k].t.resize(nt);
      for( size_type l=0; l<nt; ++l ) (*timeStamp)[k].t[l] = dt*(k+t_ref[l]);
      (*timeStamp)[k].k = k;
    }
    return timeStamp;
  }

};


} // namespace ROL


#endif // ROL_TIMESTAMP_HPP