https://github.com/Kitware/CMake
Revision 4c8760c9fb2951d897a307637a761c371e48e615 authored by Brad King on 28 August 2019, 14:58:56 UTC, committed by Brad King on 28 August 2019, 15:18:53 UTC
1 parent 40bbe50
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Tip revision: 4c8760c9fb2951d897a307637a761c371e48e615 authored by Brad King on 28 August 2019, 14:58:56 UTC
find_path: Fix crash on empty old-style list of names
Tip revision: 4c8760c
cmDuration.h
/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#pragma once

#include <chrono>
#include <ratio>

typedef std::chrono::duration<double, std::ratio<1>> cmDuration;

/*
 * This function will return number of seconds in the requested type T.
 *
 * A duration_cast from duration<double> to duration<T> will not yield what
 * one might expect if the double representation does not fit into type T.
 * This function aims to safely convert, by clamping the double value between
 * the permissible valid values for T.
 */
template <typename T>
T cmDurationTo(const cmDuration& duration);

#ifndef CMDURATION_CPP
extern template int cmDurationTo<int>(const cmDuration&);
extern template unsigned int cmDurationTo<unsigned int>(const cmDuration&);
#endif
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