time.h

// Copyright 2026 Julien Michot.
// SPDX-License-Identifier: Apache-2.0
 
#pragma once
 
#include <chrono>
 
namespace tinyopt {
 
using Clock = std::chrono::high_resolution_clock;
using TimePoint = std::chrono::high_resolution_clock::time_point;

inline auto tic() { return Clock::now(); }

inline double toc_ms(const std::chrono::time_point<Clock> &t0) {
  return static_cast<double>(
             std::chrono::duration_cast<std::chrono::microseconds>(tic() - t0).count()) *
         1e-3;
}

inline double dt_ms(const std::chrono::time_point<Clock> &t0,
                    const std::chrono::time_point<Clock> &t1) {
  return static_cast<double>(
             std::chrono::duration_cast<std::chrono::microseconds>(t1 - t0).count()) *
         1e-3;
}
 
}  // namespace tinyopt