526 lines
18 KiB
Plaintext
526 lines
18 KiB
Plaintext
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// boost/chrono/process_cpu_clocks.hpp -----------------------------------------------------------//
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// Copyright 2009-2011 Vicente J. Botet Escriba
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// Copyright (c) Microsoft Corporation 2014
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// Distributed under the Boost Software License, Version 1.0.
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// See http://www.boost.org/LICENSE_1_0.txt
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// See http://www.boost.org/libs/system for documentation.
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#ifndef BOOST_CHRONO_PROCESS_CPU_CLOCKS_HPP
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#define BOOST_CHRONO_PROCESS_CPU_CLOCKS_HPP
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#include <boost/chrono/config.hpp>
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#if defined(BOOST_CHRONO_HAS_PROCESS_CLOCKS)
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#include <boost/chrono/duration.hpp>
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#include <boost/chrono/time_point.hpp>
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#include <boost/operators.hpp>
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#include <boost/chrono/detail/system.hpp>
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#include <iostream>
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#include <boost/type_traits/common_type.hpp>
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#include <boost/chrono/clock_string.hpp>
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#ifndef BOOST_CHRONO_HEADER_ONLY
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#include <boost/config/abi_prefix.hpp> // must be the last #include
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#endif
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namespace boost { namespace chrono {
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class BOOST_CHRONO_DECL process_real_cpu_clock {
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public:
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typedef nanoseconds duration;
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typedef duration::rep rep;
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typedef duration::period period;
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typedef chrono::time_point<process_real_cpu_clock> time_point;
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BOOST_STATIC_CONSTEXPR bool is_steady = true;
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static BOOST_CHRONO_INLINE time_point now() BOOST_NOEXCEPT;
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#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
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static BOOST_CHRONO_INLINE time_point now(system::error_code & ec );
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#endif
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};
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#if ! BOOST_OS_WINDOWS || BOOST_PLAT_WINDOWS_DESKTOP
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class BOOST_CHRONO_DECL process_user_cpu_clock {
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public:
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typedef nanoseconds duration;
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typedef duration::rep rep;
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typedef duration::period period;
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typedef chrono::time_point<process_user_cpu_clock> time_point;
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BOOST_STATIC_CONSTEXPR bool is_steady = true;
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static BOOST_CHRONO_INLINE time_point now() BOOST_NOEXCEPT;
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#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
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static BOOST_CHRONO_INLINE time_point now(system::error_code & ec );
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#endif
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};
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class BOOST_CHRONO_DECL process_system_cpu_clock {
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public:
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typedef nanoseconds duration;
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typedef duration::rep rep;
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typedef duration::period period;
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typedef chrono::time_point<process_system_cpu_clock> time_point;
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BOOST_STATIC_CONSTEXPR bool is_steady = true;
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static BOOST_CHRONO_INLINE time_point now() BOOST_NOEXCEPT;
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#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
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static BOOST_CHRONO_INLINE time_point now(system::error_code & ec );
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#endif
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};
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#endif
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template <typename Rep>
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struct process_times
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: arithmetic<process_times<Rep>,
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multiplicative<process_times<Rep>, Rep,
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less_than_comparable<process_times<Rep> > > >
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{
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//typedef process_real_cpu_clock::rep rep;
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typedef Rep rep;
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process_times()
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: real(0)
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, user(0)
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, system(0){}
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#if ! defined BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0
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template <typename Rep2>
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explicit process_times(
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Rep2 r)
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: real(r)
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, user(r)
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, system(r){}
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#endif
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template <typename Rep2>
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explicit process_times(
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process_times<Rep2> const& rhs)
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: real(rhs.real)
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, user(rhs.user)
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, system(rhs.system){}
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process_times(
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rep r,
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rep u,
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rep s)
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: real(r)
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, user(u)
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, system(s){}
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rep real; // real (i.e wall clock) time
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rep user; // user cpu time
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rep system; // system cpu time
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#if ! defined BOOST_CHRONO_DONT_PROVIDES_DEPRECATED_IO_SINCE_V2_0_0
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operator rep() const
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{
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return real;
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}
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#endif
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template <typename Rep2>
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bool operator==(process_times<Rep2> const& rhs) {
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return (real==rhs.real &&
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user==rhs.user &&
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system==rhs.system);
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}
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process_times& operator+=(
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process_times const& rhs)
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{
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real+=rhs.real;
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user+=rhs.user;
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system+=rhs.system;
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return *this;
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}
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process_times& operator-=(
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process_times const& rhs)
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{
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real-=rhs.real;
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user-=rhs.user;
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system-=rhs.system;
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return *this;
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}
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process_times& operator*=(
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process_times const& rhs)
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{
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real*=rhs.real;
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user*=rhs.user;
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system*=rhs.system;
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return *this;
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}
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process_times& operator*=(rep const& rhs)
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{
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real*=rhs;
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user*=rhs;
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system*=rhs;
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return *this;
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}
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process_times& operator/=(process_times const& rhs)
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{
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real/=rhs.real;
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user/=rhs.user;
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system/=rhs.system;
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return *this;
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}
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process_times& operator/=(rep const& rhs)
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{
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real/=rhs;
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user/=rhs;
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system/=rhs;
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return *this;
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}
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bool operator<(process_times const & rhs) const
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{
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if (real < rhs.real) return true;
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if (real > rhs.real) return false;
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if (user < rhs.user) return true;
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if (user > rhs.user) return false;
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if (system < rhs.system) return true;
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else return false;
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}
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template <class CharT, class Traits>
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void print(std::basic_ostream<CharT, Traits>& os) const
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{
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os << "{"<< real <<";"<< user <<";"<< system << "}";
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}
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template <class CharT, class Traits>
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void read(std::basic_istream<CharT, Traits>& is)
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{
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typedef std::istreambuf_iterator<CharT, Traits> in_iterator;
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in_iterator i(is);
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in_iterator e;
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if (i == e || *i++ != '{') // mandatory '{'
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{
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is.setstate(is.failbit | is.eofbit);
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return;
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}
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CharT x,y,z;
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is >> real >> x >> user >> y >> system >> z;
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if (!is.good() || (x != ';')|| (y != ';')|| (z != '}'))
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{
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is.setstate(is.failbit);
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}
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}
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};
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}
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template <class Rep1, class Rep2>
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struct common_type<
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chrono::process_times<Rep1>,
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chrono::process_times<Rep2>
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>
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{
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typedef chrono::process_times<typename common_type<Rep1, Rep2>::type> type;
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};
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template <class Rep1, class Rep2>
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struct common_type<
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chrono::process_times<Rep1>,
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Rep2
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>
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{
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typedef chrono::process_times<typename common_type<Rep1, Rep2>::type> type;
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};
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template <class Rep1, class Rep2>
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struct common_type<
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Rep1,
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chrono::process_times<Rep2>
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>
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{
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typedef chrono::process_times<typename common_type<Rep1, Rep2>::type> type;
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};
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namespace chrono
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{
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template <class Rep1, class Period1, class Rep2, class Period2>
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inline BOOST_CONSTEXPR
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bool
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operator==(const duration<process_times<Rep1>, Period1>& lhs,
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const duration<process_times<Rep2>, Period2>& rhs)
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{
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return boost::chrono::detail::duration_eq<
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duration<Rep1, Period1>, duration<Rep2, Period2>
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>()(duration<Rep1, Period1>(lhs.count().real), duration<Rep2, Period2>(rhs.count().real));
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}
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template <class Rep1, class Period1, class Rep2, class Period2>
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inline BOOST_CONSTEXPR
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bool
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operator==(const duration<process_times<Rep1>, Period1>& lhs,
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const duration<Rep2, Period2>& rhs)
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{
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return boost::chrono::detail::duration_eq<
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duration<Rep1, Period1>, duration<Rep2, Period2> >()(duration<Rep1, Period1>(lhs.count().real), rhs);
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}
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template <class Rep1, class Period1, class Rep2, class Period2>
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inline BOOST_CONSTEXPR
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bool
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operator==(const duration<Rep1, Period1>& lhs,
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const duration<process_times<Rep2>, Period2>& rhs)
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{
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return rhs == lhs;
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}
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// Duration <
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template <class Rep1, class Period1, class Rep2, class Period2>
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inline BOOST_CONSTEXPR
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bool
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operator< (const duration<process_times<Rep1>, Period1>& lhs,
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const duration<Rep2, Period2>& rhs)
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{
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return boost::chrono::detail::duration_lt<
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duration<Rep1, Period1>, duration<Rep2, Period2> >()(duration<Rep1, Period1>(lhs.count().real), rhs);
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}
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template <class Rep1, class Period1, class Rep2, class Period2>
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inline BOOST_CONSTEXPR
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bool
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operator< (const duration<Rep1, Period1>& lhs,
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const duration<process_times<Rep2>, Period2>& rhs)
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{
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return boost::chrono::detail::duration_lt<
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duration<Rep1, Period1>, duration<Rep2, Period2> >()(lhs, duration<Rep2, Period2>(rhs.count().real));
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}
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template <class Rep1, class Period1, class Rep2, class Period2>
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inline BOOST_CONSTEXPR
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bool
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operator< (const duration<process_times<Rep1>, Period1>& lhs,
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const duration<process_times<Rep2>, Period2>& rhs)
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{
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return boost::chrono::detail::duration_lt<
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duration<Rep1, Period1>, duration<Rep2, Period2>
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>()(duration<Rep1, Period1>(lhs.count().real), duration<Rep2, Period2>(rhs.count().real));
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}
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typedef process_times<nanoseconds::rep> process_cpu_clock_times;
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#if ! BOOST_OS_WINDOWS || BOOST_PLAT_WINDOWS_DESKTOP
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class BOOST_CHRONO_DECL process_cpu_clock
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{
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public:
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typedef process_cpu_clock_times times;
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typedef boost::chrono::duration<times, nano> duration;
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typedef duration::rep rep;
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typedef duration::period period;
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typedef chrono::time_point<process_cpu_clock> time_point;
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BOOST_STATIC_CONSTEXPR bool is_steady = true;
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static BOOST_CHRONO_INLINE time_point now() BOOST_NOEXCEPT;
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#if !defined BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING
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static BOOST_CHRONO_INLINE time_point now(system::error_code & ec );
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#endif
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};
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#endif
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template <class CharT, class Traits, typename Rep>
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std::basic_ostream<CharT, Traits>&
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operator<<(std::basic_ostream<CharT, Traits>& os,
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process_times<Rep> const& rhs)
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{
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rhs.print(os);
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return os;
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}
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template <class CharT, class Traits, typename Rep>
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std::basic_istream<CharT, Traits>&
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operator>>(std::basic_istream<CharT, Traits>& is,
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process_times<Rep>& rhs)
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{
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rhs.read(is);
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return is;
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}
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template <typename Rep>
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struct duration_values<process_times<Rep> >
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{
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typedef process_times<Rep> Res;
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public:
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static Res zero()
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{
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return Res();
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}
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static Res max BOOST_PREVENT_MACRO_SUBSTITUTION ()
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{
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return Res((std::numeric_limits<Rep>::max)(),
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(std::numeric_limits<Rep>::max)(),
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(std::numeric_limits<Rep>::max)());
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}
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static Res min BOOST_PREVENT_MACRO_SUBSTITUTION ()
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{
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return Res((std::numeric_limits<Rep>::min)(),
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(std::numeric_limits<Rep>::min)(),
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(std::numeric_limits<Rep>::min)());
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}
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};
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template<class CharT>
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struct clock_string<process_real_cpu_clock, CharT>
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{
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static std::basic_string<CharT> name()
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{
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static const CharT
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u[] =
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{ 'p', 'r', 'o', 'c', 'e', 's', 's', '_', 'r', 'e', 'a', 'l', '_', 'c', 'l', 'o', 'c', 'k' };
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static const std::basic_string<CharT> str(u, u + sizeof(u)
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/ sizeof(u[0]));
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return str;
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|
}
|
||
|
|
static std::basic_string<CharT> since()
|
||
|
|
{
|
||
|
|
const CharT
|
||
|
|
u[] =
|
||
|
|
{ ' ', 's', 'i', 'n', 'c', 'e', ' ', 'p', 'r', 'o', 'c', 'e', 's', 's', ' ', 's', 't', 'a', 'r', 't', '-', 'u', 'p' };
|
||
|
|
const std::basic_string<CharT> str(u, u + sizeof(u) / sizeof(u[0]));
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
#if ! BOOST_OS_WINDOWS || BOOST_PLAT_WINDOWS_DESKTOP
|
||
|
|
template<class CharT>
|
||
|
|
struct clock_string<process_user_cpu_clock, CharT>
|
||
|
|
{
|
||
|
|
static std::basic_string<CharT> name()
|
||
|
|
{
|
||
|
|
static const CharT
|
||
|
|
u[] =
|
||
|
|
{ 'p', 'r', 'o', 'c', 'e', 's', 's', '_', 'u', 's', 'e', 'r', '_', 'c', 'l', 'o', 'c', 'k' };
|
||
|
|
static const std::basic_string<CharT> str(u, u + sizeof(u)
|
||
|
|
/ sizeof(u[0]));
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
static std::basic_string<CharT> since()
|
||
|
|
{
|
||
|
|
const CharT
|
||
|
|
u[] =
|
||
|
|
{ ' ', 's', 'i', 'n', 'c', 'e', ' ', 'p', 'r', 'o', 'c', 'e', 's', 's', ' ', 's', 't', 'a', 'r', 't', '-', 'u', 'p' };
|
||
|
|
const std::basic_string<CharT> str(u, u + sizeof(u) / sizeof(u[0]));
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class CharT>
|
||
|
|
struct clock_string<process_system_cpu_clock, CharT>
|
||
|
|
{
|
||
|
|
static std::basic_string<CharT> name()
|
||
|
|
{
|
||
|
|
static const CharT
|
||
|
|
u[] =
|
||
|
|
{ 'p', 'r', 'o', 'c', 'e', 's', 's', '_', 's', 'y', 's', 't', 'e', 'm', '_', 'c', 'l', 'o', 'c', 'k' };
|
||
|
|
static const std::basic_string<CharT> str(u, u + sizeof(u)
|
||
|
|
/ sizeof(u[0]));
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
static std::basic_string<CharT> since()
|
||
|
|
{
|
||
|
|
const CharT
|
||
|
|
u[] =
|
||
|
|
{ ' ', 's', 'i', 'n', 'c', 'e', ' ', 'p', 'r', 'o', 'c', 'e', 's', 's', ' ', 's', 't', 'a', 'r', 't', '-', 'u', 'p' };
|
||
|
|
const std::basic_string<CharT> str(u, u + sizeof(u) / sizeof(u[0]));
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template<class CharT>
|
||
|
|
struct clock_string<process_cpu_clock, CharT>
|
||
|
|
{
|
||
|
|
static std::basic_string<CharT> name()
|
||
|
|
{
|
||
|
|
static const CharT u[] =
|
||
|
|
{ 'p', 'r', 'o', 'c', 'e', 's', 's', '_', 'c', 'l', 'o', 'c', 'k' };
|
||
|
|
static const std::basic_string<CharT> str(u, u + sizeof(u)
|
||
|
|
/ sizeof(u[0]));
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
static std::basic_string<CharT> since()
|
||
|
|
{
|
||
|
|
const CharT
|
||
|
|
u[] =
|
||
|
|
{ ' ', 's', 'i', 'n', 'c', 'e', ' ', 'p', 'r', 'o', 'c', 'e', 's', 's', ' ', 's', 't', 'a', 'r', 't', '-', 'u', 'p' };
|
||
|
|
const std::basic_string<CharT> str(u, u + sizeof(u) / sizeof(u[0]));
|
||
|
|
return str;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
#endif
|
||
|
|
|
||
|
|
} // namespace chrono
|
||
|
|
} // namespace boost
|
||
|
|
|
||
|
|
namespace std {
|
||
|
|
|
||
|
|
template <typename Rep>
|
||
|
|
struct numeric_limits<boost::chrono::process_times<Rep> >
|
||
|
|
{
|
||
|
|
typedef boost::chrono::process_times<Rep> Res;
|
||
|
|
|
||
|
|
public:
|
||
|
|
static const bool is_specialized = true;
|
||
|
|
static Res min BOOST_PREVENT_MACRO_SUBSTITUTION ()
|
||
|
|
{
|
||
|
|
return Res((std::numeric_limits<Rep>::min)(),
|
||
|
|
(std::numeric_limits<Rep>::min)(),
|
||
|
|
(std::numeric_limits<Rep>::min)());
|
||
|
|
}
|
||
|
|
static Res max BOOST_PREVENT_MACRO_SUBSTITUTION ()
|
||
|
|
{
|
||
|
|
return Res((std::numeric_limits<Rep>::max)(),
|
||
|
|
(std::numeric_limits<Rep>::max)(),
|
||
|
|
(std::numeric_limits<Rep>::max)());
|
||
|
|
}
|
||
|
|
static Res lowest() throw()
|
||
|
|
{
|
||
|
|
return (min)();
|
||
|
|
}
|
||
|
|
static const int digits = std::numeric_limits<Rep>::digits+
|
||
|
|
std::numeric_limits<Rep>::digits+
|
||
|
|
std::numeric_limits<Rep>::digits;
|
||
|
|
static const int digits10 = std::numeric_limits<Rep>::digits10+
|
||
|
|
std::numeric_limits<Rep>::digits10+
|
||
|
|
std::numeric_limits<Rep>::digits10;
|
||
|
|
static const bool is_signed = Rep::is_signed;
|
||
|
|
static const bool is_integer = Rep::is_integer;
|
||
|
|
static const bool is_exact = Rep::is_exact;
|
||
|
|
static const int radix = 0;
|
||
|
|
//~ static Res epsilon() throw() { return 0; }
|
||
|
|
//~ static Res round_error() throw() { return 0; }
|
||
|
|
//~ static const int min_exponent = 0;
|
||
|
|
//~ static const int min_exponent10 = 0;
|
||
|
|
//~ static const int max_exponent = 0;
|
||
|
|
//~ static const int max_exponent10 = 0;
|
||
|
|
//~ static const bool has_infinity = false;
|
||
|
|
//~ static const bool has_quiet_NaN = false;
|
||
|
|
//~ static const bool has_signaling_NaN = false;
|
||
|
|
//~ static const float_denorm_style has_denorm = denorm_absent;
|
||
|
|
//~ static const bool has_denorm_loss = false;
|
||
|
|
//~ static Res infinity() throw() { return 0; }
|
||
|
|
//~ static Res quiet_NaN() throw() { return 0; }
|
||
|
|
//~ static Res signaling_NaN() throw() { return 0; }
|
||
|
|
//~ static Res denorm_min() throw() { return 0; }
|
||
|
|
//~ static const bool is_iec559 = false;
|
||
|
|
//~ static const bool is_bounded = true;
|
||
|
|
//~ static const bool is_modulo = false;
|
||
|
|
//~ static const bool traps = false;
|
||
|
|
//~ static const bool tinyness_before = false;
|
||
|
|
//~ static const float_round_style round_style = round_toward_zero;
|
||
|
|
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef BOOST_CHRONO_HEADER_ONLY
|
||
|
|
#include <boost/config/abi_suffix.hpp> // pops abi_prefix.hpp pragmas
|
||
|
|
#else
|
||
|
|
#include <boost/chrono/detail/inlined/process_cpu_clocks.hpp>
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif // BOOST_CHRONO_PROCESS_CPU_CLOCKS_HPP
|