/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#define CMDURATION_CPP
#include "cmDuration.h"

template <typename T>
T
cmDurationTo(const cmDuration& duration)
{
    /* This works because the comparison operators for duration rely on
     * std::common_type.
     * So for example duration<int>::max() gets promoted to a duration<double>,
     * which can then be safely compared.
     */
    if(duration >= std::chrono::duration<T>::max())
    {
        return std::chrono::duration<T>::max().count();
    }
    if(duration <= std::chrono::duration<T>::min())
    {
        return std::chrono::duration<T>::min().count();
    }
    // Ensure number of seconds by defining ratio<1>
    return std::chrono::duration_cast<std::chrono::duration<T, std::ratio<1>>>(
               duration)
        .count();
}

template int
cmDurationTo<int>(const cmDuration&);
template unsigned int
cmDurationTo<unsigned int>(const cmDuration&);
