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| <div class="toc"><dl class="toc"> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history">Appendix: History</a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.rationale">Appendix: Rationale</a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.implementation">Appendix: Implementation |
| Notes</a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.faq">Appendix: FAQ</a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.acknowledgements">Appendix: Acknowledgements</a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.todo">Appendix: Future plans</a></span></dt> |
| </dl></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="chrono.appendices.history"></a><a class="link" href="appendices.html#chrono.appendices.history" title="Appendix: History">Appendix: History</a> |
| </h3></div></div></div> |
| <div class="toc"><dl class="toc"> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_2_0_5__february_18__2015___1_58__"><span class="bold"><strong>Version 2.0.5, February 18, 2015 - 1.58</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_2_0_4__july_12__2014___1_56__"><span class="bold"><strong>Version 2.0.4, July 12, 2014 - 1.56</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_2_0_3__september_29__2013___1_55__"><span class="bold"><strong>Version 2.0.3, September 29, 2013 - 1.55</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_2_0_2__june_15__2013___1_54__"><span class="bold"><strong>Version 2.0.2, June 15, 2013 - 1.54</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_2_0_1__january_18__2013___1_53__"><span class="bold"><strong>Version 2.0.1, January 18, 2013 - 1.53</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_2_0_0__october_23__2012___1_52__"><span class="bold"><strong>Version 2.0.0, October 23, 2012 - 1.52</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_1_2_3__august_1__2012___1_51__"><span class="bold"><strong>Version 1.2.3, August 1, 2012 - 1.51</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_1_2_2__april_1__2012___1_50__"><span class="bold"><strong>Version 1.2.2, April 1, 2012 - 1.50</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_1_2_1__february_1__2012___1_49__"><span class="bold"><strong>Version 1.2.1, February 1, 2012 - 1.49</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_1_2_0__october_17__2011__"><span class="bold"><strong>Version 1.2.0, October 17, 2011</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_1_1_0__mars_17__2011__"><span class="bold"><strong>Version 1.1.0, Mars 17, 2011</strong></span> </a></span></dt> |
| <dt><span class="section"><a href="appendices.html#chrono.appendices.history.__version_1_0_0__january_6__2011__"><span class="bold"><strong>Version 1.0.0, January 6, 2011</strong></span> </a></span></dt> |
| </dl></div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_2_0_5__february_18__2015___1_58__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_2_0_5__february_18__2015___1_58__" title="Version 2.0.5, February 18, 2015 - 1.58"><span class="bold"><strong>Version 2.0.5, February 18, 2015 - 1.58</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/10778" target="_top">#10778</a> |
| VC14 CTP4 Atomic don't compile with boost::chrono durations which are |
| not TriviallyCopyable |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/10840" target="_top">#10840</a> |
| Missing std:: qualifier for puts call in test_7868.cpp |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/10851" target="_top">#10851</a> |
| Missing std:: qualifier for puts call in time_point_output.cpp |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/10893" target="_top">#10893</a> |
| Minor doc typo in Boost.Chrono |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/10992" target="_top">#10992</a> |
| Chrono IO state savers inconsistent with Boost.IO state savers |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/10995" target="_top">#10995</a> |
| duration_put::put_value truncates fractional part |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/11006" target="_top">#11006</a> |
| Impossible to instantiate time_fmt_io_saver due to several errors. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/11012" target="_top">#11012</a> |
| chrono_io v2 fail to compile with boost::chrono::duration< boost::rational<int> |
| > |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_2_0_4__july_12__2014___1_56__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_2_0_4__july_12__2014___1_56__" title="Version 2.0.4, July 12, 2014 - 1.56"><span class="bold"><strong>Version 2.0.4, July 12, 2014 - 1.56</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6918" target="_top">#6918</a> |
| Boost Chrono compilation failure on HP uX due to undefined pthread_getcpuclockid |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/8006" target="_top">#8006</a> |
| Boost::Chrono Assertion at startup - steady_clock::now() - Windows |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9337" target="_top">#9337</a> |
| chrono::process_cpu_clock time points wrong by factor 1000 on Linux |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9342" target="_top">#9342</a> |
| Regression on process_cpu_clock::timepoint io on V2 |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9419" target="_top">#9419</a> |
| boost::chrono::floor()/round() and negative durations is wrong |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9698" target="_top">#9698</a> |
| boost::chrono::thread_clock not declared in OSX |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9720" target="_top">#9720</a> |
| boost::this_thread::sleep_for() sometimes returns immediately on win32 |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9859" target="_top">#9859</a> |
| Remove references to gcc-mingw |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9918" target="_top">#9918</a> |
| chrono compilation error on Solaris, function timegm |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9811" target="_top">#9811</a> |
| boost/boost/chrono/duration.hpp:355:56: error: call to non-constexpr |
| function 'static std::numeric_limits<float>::_Ty std::numeric_limits<float>::max()' |
| /home/zosun/input_service/inputservices-core-service/other/boost/boost/chrono/duration.hpp: |
| In static member function 'static constexpr double boost::chrono::detail::chrono_numeric_limits<double, |
| true>::lowest()': |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/10069" target="_top">#10069</a> |
| Overflow in chrono clocks on 32bit |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/10151" target="_top">#10151</a> |
| timegm function not available on QNX |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_2_0_3__september_29__2013___1_55__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_2_0_3__september_29__2013___1_55__" title="Version 2.0.3, September 29, 2013 - 1.55"><span class="bold"><strong>Version 2.0.3, September 29, 2013 - 1.55</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7868" target="_top">#7868</a> |
| chrono_io parses time incorrectly (1.53 and 1.52) |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9028" target="_top">#9028</a> |
| Typo in boost/chrono/stopwatches/formatters/base_formatter.hpp |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9147" target="_top">#9147</a> |
| uninitialized std::tm |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9274" target="_top">#9274</a> |
| lost of precision on system_clock input. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/9276" target="_top">#9276</a> |
| output from a system_clock::time_point get a time_point that is one |
| day later than expected. |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_2_0_2__june_15__2013___1_54__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_2_0_2__june_15__2013___1_54__" title="Version 2.0.2, June 15, 2013 - 1.54"><span class="bold"><strong>Version 2.0.2, June 15, 2013 - 1.54</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/8079" target="_top">#8079</a> |
| Chrono memory leak |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/8318" target="_top">#8318</a> |
| BOOST_FORCEINLINE constructors of time_point and duration |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/8367" target="_top">#8367</a> |
| chrono does not compile with clang from XCode 4.5.2 with -std=c++11 |
| -stdlib=libc++ and -arch armv7 |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/8370" target="_top">#8370</a> |
| typo in chrono reference |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/8435" target="_top">#8435</a> |
| Can't compile Chrono on HP-UX due to no CLOCK_REALTIME macro. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/8690" target="_top">#8690</a> |
| duration_units_default - lost return types constness in overridden |
| methods. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/8691" target="_top">#8691</a> |
| iostate is not checked after scan_keyword call. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/8696" target="_top">#8696</a> |
| chrono compilation error on Solaris/gcc. |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_2_0_1__january_18__2013___1_53__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_2_0_1__january_18__2013___1_53__" title="Version 2.0.1, January 18, 2013 - 1.53"><span class="bold"><strong>Version 2.0.1, January 18, 2013 - 1.53</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>Deprecated:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| The chrono i/o version included in Boost.Chrono 1.2.x has been completly |
| refactored in version 2.0.0 |
| </li> |
| <li class="listitem"> |
| chrono I/O: The manipulators <a class="link" href="reference.html#chrono.reference.io_v1.chrono_io_hpp.manipulators" title="I/O Manipulators"><code class="computeroutput"><span class="identifier">duration_short</span></code></a>, <a class="link" href="reference.html#chrono.reference.io_v1.chrono_io_hpp.manipulators" title="I/O Manipulators"><code class="computeroutput"><span class="identifier">duration_long</span></code></a> are deprecated. |
| You should use the parameterized form <a class="link" href="reference.html#chrono.reference.io.duration_io_hpp.manipulators.duration_fmt" title="Template Class duration_fmt"><code class="computeroutput"><span class="identifier">duration_fmt</span></code></a> or the renamed |
| manipulators __duration_symbol and __duration_prefix instead. |
| </li> |
| <li class="listitem"> |
| chrono I/O: The <a class="link" href="reference.html#chrono.reference.io_v1.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a><> facet |
| is deprecated. You should use the <a class="link" href="reference.html#chrono.reference.io.ios_state_hpp.sag.get_duration_style" title="Non Member Function get_duration_style(std::ios_base &)"><code class="computeroutput"><span class="identifier">get_duration_style</span></code></a> free function |
| to get the informations and use the <a class="link" href="reference.html#chrono.reference.io.duration_units_hpp.duration_units" title="Template Class duration_units"><code class="computeroutput"><span class="identifier">duration_units</span></code></a> facet for localization |
| purposes. |
| </li> |
| </ul></div> |
| <p> |
| When BOOST_CHRONO_VERSION==2 the preceding deprecated functions are not |
| available. |
| </p> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7546" target="_top">#7546</a> |
| time_point<system_clock> output version 2 fails to compile assigned |
| viboes Bugs Boost 1.53.0 -- |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7547" target="_top">#7547</a> |
| time_point<system_clock> input version 2 fails to compile assigned |
| viboes Bugs Boost 1.53.0 -- |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7868" target="_top">#7868</a> |
| chrono_io parses time incorrectly (1.53 and 1.52) |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_2_0_0__october_23__2012___1_52__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_2_0_0__october_23__2012___1_52__" title="Version 2.0.0, October 23, 2012 - 1.52"><span class="bold"><strong>Version 2.0.0, October 23, 2012 - 1.52</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>New Features:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> |
| Enhance chrono I/O |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5980" target="_top">#5980</a> |
| Enhance chrono I/O with H. Hinnant proposal <a href="http://home.roadrunner.com/~hinnant/bloomington/chrono_io.html" target="_top">proposal</a> |
| which has the advantage to provide I/O for system clocks using |
| the Gregorian Calendar. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5981" target="_top">#5981</a> |
| Add i/o state savers for duration and time_point formatting state. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7059" target="_top">#7059</a> |
| Add low level i/o facilities. |
| </li> |
| </ul></div> |
| </li></ul></div> |
| <p> |
| <span class="bold"><strong>Deprecated:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| The chrono i/o version included in Boost.Chrono 1.2.x has been completly |
| refactored in version 2.0.0 |
| </li> |
| <li class="listitem"> |
| chrono I/O: The manipulators <a class="link" href="reference.html#chrono.reference.io_v1.chrono_io_hpp.manipulators" title="I/O Manipulators"><code class="computeroutput"><span class="identifier">duration_short</span></code></a>, <a class="link" href="reference.html#chrono.reference.io_v1.chrono_io_hpp.manipulators" title="I/O Manipulators"><code class="computeroutput"><span class="identifier">duration_long</span></code></a> are deprecated. |
| You should use the parameterized form <a class="link" href="reference.html#chrono.reference.io.duration_io_hpp.manipulators.duration_fmt" title="Template Class duration_fmt"><code class="computeroutput"><span class="identifier">duration_fmt</span></code></a> or the renamed |
| manipulators __duration_symbol and __duration_prefix instead. |
| </li> |
| <li class="listitem"> |
| chrono I/O: The <a class="link" href="reference.html#chrono.reference.io_v1.chrono_io_hpp.duration_punct" title="Template Class duration_punct<>"><code class="computeroutput"><span class="identifier">duration_punct</span></code></a><> facet |
| is deprecated. You should use the <a class="link" href="reference.html#chrono.reference.io.ios_state_hpp.sag.get_duration_style" title="Non Member Function get_duration_style(std::ios_base &)"><code class="computeroutput"><span class="identifier">get_duration_style</span></code></a> free function |
| to get the informations and use the <a class="link" href="reference.html#chrono.reference.io.duration_units_hpp.duration_units" title="Template Class duration_units"><code class="computeroutput"><span class="identifier">duration_units</span></code></a> facet for localization |
| purposes. |
| </li> |
| </ul></div> |
| <p> |
| When BOOST_CHRONO_VERSION==2 the preceding deprecated functions are not |
| available. |
| </p> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7381" target="_top">#7381</a> |
| C++11 compliance: unresolved symbol when assigning a constexpr duration |
| to a non-const local variable. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7479" target="_top">#7479</a> |
| Compiles fails with compilers supporting constexpr fails if the standard |
| library doesn't provides the constexpr interface |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7493" target="_top">#7493</a> |
| compile fail on intel-linux-12.1.3.0x because of bug on explicit bool |
| conversion |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7542" target="_top">#7542</a> |
| Missing -lpthread in chrono/io tester Sandia-clang-trunk |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Would not fix:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6871" target="_top">#6871</a> |
| chrono_io.hpp: operator<<(ostream& os, ...) modifies the |
| state of os. |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "><li class="listitem"> |
| The new io interface provided in version 2 solves this issue. |
| You should move to the new version. |
| </li></ul></div> |
| </li></ul></div> |
| <p> |
| <span class="bold"><strong>Known bugs not fixed yet:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7525" target="_top">#7525</a> |
| Wrong clock_string<system_clock>::since() on Windows |
| </li></ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_1_2_3__august_1__2012___1_51__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_1_2_3__august_1__2012___1_51__" title="Version 1.2.3, August 1, 2012 - 1.51"><span class="bold"><strong>Version 1.2.3, August 1, 2012 - 1.51</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6918" target="_top">#6918</a> |
| Boost Chrono compilation failure on HP uX due to undefined pthread_getcpuclockid. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6241" target="_top">#6241</a> |
| boost::chrono compilation problems without std::wstring support. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6987" target="_top">#6987</a> |
| Documentation & C++11. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7041" target="_top">#7041</a> |
| time_point.hpp depends on Boost.System. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7042" target="_top">#7042</a> |
| Avoiding time_point and duration dependency on time.h and CLOCK_REALTIME. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7058" target="_top">#7058</a> |
| Make it work when BOOST_NO_EXCEPTIONS is defined. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7069" target="_top">#7069</a> |
| Misspellings in clock_string<thread_clock>. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/7081" target="_top">#7081</a> |
| WinError.h capitalization in boost/detail/win/basic_types.hpp. |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_1_2_2__april_1__2012___1_50__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_1_2_2__april_1__2012___1_50__" title="Version 1.2.2, April 1, 2012 - 1.50"><span class="bold"><strong>Version 1.2.2, April 1, 2012 - 1.50</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6361" target="_top">#6361</a> |
| integer overflow in boost::chrono::process_real_cpu_clock::now() under |
| Windows 32bits. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6628" target="_top">#6628</a> |
| compiler warning in process_cpu_clocks.hpp. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6666" target="_top">#6666</a> |
| thread_clock.hpp needs pthread.h. |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_1_2_1__february_1__2012___1_49__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_1_2_1__february_1__2012___1_49__" title="Version 1.2.1, February 1, 2012 - 1.49"><span class="bold"><strong>Version 1.2.1, February 1, 2012 - 1.49</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6092" target="_top">#6092</a> |
| Input from non integral durations makes the compiler fail. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6093" target="_top">#6093</a> |
| [1/3]second fails as valid duration input. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6113" target="_top">#6113</a> |
| duplicate symbol when BOOST_CHRONO_HEADER_ONLY is defined. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6243" target="_top">#6243</a> |
| Sandia-pgi-11.9: more than one instance of overloaded function "min" |
| matches. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/6257" target="_top">#6257</a> |
| process_cpu_clock::now() on linux gives time_points 1/1000 times. |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_1_2_0__october_17__2011__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_1_2_0__october_17__2011__" title="Version 1.2.0, October 17, 2011"><span class="bold"><strong>Version 1.2.0, October 17, 2011</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>New Features:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5979" target="_top">#5979</a> |
| Added chrono rounding utilities as defined By Howard Hinnant <a href="http://home.roadrunner.com/~hinnant/duration_io/chrono_util.html" target="_top">here</a>. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5978" target="_top">#5978</a> |
| Added BOOST_CHRONO_HAS_PROCESS_CLOCKS to know if process clocks are |
| available. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5998" target="_top">#5998</a> |
| Make possible to don't provide hybrid error handling. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5906" target="_top">#5906</a> |
| Take in account the constexpr as defined in the standard. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5907" target="_top">#5907</a> |
| Take in account noexcept for compilers supporting it. |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/2114" target="_top">#2114</a> |
| Enable visibility support (Boost.Chorno part) |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5669" target="_top">#5669</a> |
| Intel compiler failure to compile duration.hpp |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5909" target="_top">#5909</a> |
| process_cpu_clock::now() on MAC gives time_points 1/1000 times. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5946" target="_top">#5946</a> |
| Process real cpu clock returns the system steady clock (windows). |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5974" target="_top">#5974</a> |
| Process real cpu clock should use clock() instead of times() in MAC |
| which is twice faster and have better resolution. |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Cleanup:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5975" target="_top">#5975</a> |
| Reduce the combinations of header-only, shared, static link to reduce |
| test time by 50%. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5976" target="_top">#5976</a> |
| chrono_accuracy_test is not deterministic and should be removed from |
| the regression tests |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5977" target="_top">#5977</a> |
| Remove old files from Beman's version. Some old files included in the |
| Beman's version and not documented in the reviewed version that have |
| been definitely removed from the repository as |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> |
| <li class="listitem"> |
| boost/chrono/timer.hpp, |
| </li> |
| <li class="listitem"> |
| boost/chrono/process_times.hpp |
| </li> |
| <li class="listitem"> |
| boost/chrono/detail/process_clock.hpp, |
| </li> |
| <li class="listitem"> |
| boost/chrono/detail/mac/process_clock.hpp, |
| </li> |
| <li class="listitem"> |
| boost/chrono/detail/posix/process_clock.hpp, |
| </li> |
| <li class="listitem"> |
| boost/chrono/detail/win/process_clock.hpp, |
| </li> |
| <li class="listitem"> |
| boost/chrono/detail/run_timer.hpp, |
| </li> |
| <li class="listitem"> |
| boost/chrono/detail/run_timer_static.hpp, |
| </li> |
| </ul></div> |
| </li> |
| </ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_1_1_0__mars_17__2011__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_1_1_0__mars_17__2011__" title="Version 1.1.0, Mars 17, 2011"><span class="bold"><strong>Version 1.1.0, Mars 17, 2011</strong></span> </a> |
| </h4></div></div></div> |
| <p> |
| <span class="bold"><strong>New Features:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/????" target="_top">#????</a> |
| Added time_point unary operators +,-,++,-- and binary operators +<code class="literal">,-</code> |
| with Rep al RHS. |
| </li> |
| <li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5323" target="_top">#5323</a> |
| Add Associated type difference_type for chrono::time_point. |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> |
| <a href="http://svn.boost.org/trac/boost/ticket/5322" target="_top">#5322</a> |
| Explicit default constructed chrono::durations are uninitialized |
| </li></ul></div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h4 class="title"> |
| <a name="chrono.appendices.history.__version_1_0_0__january_6__2011__"></a><a class="link" href="appendices.html#chrono.appendices.history.__version_1_0_0__january_6__2011__" title="Version 1.0.0, January 6, 2011"><span class="bold"><strong>Version 1.0.0, January 6, 2011</strong></span> </a> |
| </h4></div></div></div> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| Moved chrono to trunk taking in account the review remarks. |
| </li> |
| <li class="listitem"> |
| Documentation revision. |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Features:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| Boost_Chrono is now a configurable header-only library version (that |
| also allows the user to choose if the <code class="computeroutput"><span class="identifier">windows</span><span class="special">.</span><span class="identifier">h</span></code> |
| file is included or not). |
| </li> |
| <li class="listitem"> |
| Added clock_string<> traits. |
| </li> |
| <li class="listitem"> |
| Define chrono-io for all the clocks. |
| </li> |
| <li class="listitem"> |
| Add input of process_times representation. |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Implementation:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| Use of detail/win files to avoid the use of windows.h file. |
| </li> |
| <li class="listitem"> |
| Completed the error_code handling. |
| </li> |
| <li class="listitem"> |
| Works now with BOOST_SYSTEM_NO_DEPRECATED. |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Fixes:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| Fix some warnings. |
| </li> |
| <li class="listitem"> |
| Fix original errors on Mac |
| </li> |
| <li class="listitem"> |
| Don't fix the link with boost_system to static. |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Test:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| Added test on process and thread clocks. |
| </li> |
| <li class="listitem"> |
| Moved to lightweight_test.hpp. |
| </li> |
| <li class="listitem"> |
| Able to test multiple configurations. |
| </li> |
| </ul></div> |
| <p> |
| <span class="bold"><strong>Doc:</strong></span> |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> |
| Removed some not useful parts as the test and the tickets. |
| </li></ul></div> |
| </div> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="chrono.appendices.rationale"></a><a class="link" href="appendices.html#chrono.appendices.rationale" title="Appendix: Rationale">Appendix: Rationale</a> |
| </h3></div></div></div> |
| <p> |
| See <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2661.htm" target="_top"><span class="bold"><strong>N2661 - A Foundation to Sleep On</strong></span></a> which is |
| very informative and provides motivation for key design decisions. This section |
| contains some extracts from this document. |
| </p> |
| <h5> |
| <a name="chrono.appendices.rationale.h0"></a> |
| <span class="phrase"><a name="chrono.appendices.rationale.why_duration_needs_operator_"></a></span><a class="link" href="appendices.html#chrono.appendices.rationale.why_duration_needs_operator_">Why duration |
| needs operator%</a> |
| </h5> |
| <p> |
| This operator is convenient for computing where in a time frame a given duration |
| lies. A motivating example is converting a duration into a "broken-down" |
| time duration such as hours::minutes::seconds: |
| </p> |
| <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">ClockTime</span> |
| <span class="special">{</span> |
| <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">hours</span> <span class="identifier">hours</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">minutes</span> <span class="identifier">minutes</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">seconds</span> <span class="identifier">seconds</span><span class="special">;</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="identifier">hours</span> <span class="identifier">hours_</span><span class="special">;</span> |
| <span class="identifier">minutes</span> <span class="identifier">minutes_</span><span class="special">;</span> |
| <span class="identifier">seconds</span> <span class="identifier">seconds_</span><span class="special">;</span> |
| |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">Rep</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Period</span><span class="special">></span> |
| <span class="keyword">explicit</span> <span class="identifier">ClockTime</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">duration</span><span class="special"><</span><span class="identifier">Rep</span><span class="special">,</span> <span class="identifier">Period</span><span class="special">>&</span> <span class="identifier">d</span><span class="special">)</span> |
| <span class="special">:</span> <span class="identifier">hours_</span> <span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">duration_cast</span><span class="special"><</span><span class="identifier">hours</span><span class="special">></span> <span class="special">(</span><span class="identifier">d</span><span class="special">)),</span> |
| <span class="identifier">minutes_</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">duration_cast</span><span class="special"><</span><span class="identifier">minutes</span><span class="special">>(</span><span class="identifier">d</span> <span class="special">%</span> <span class="identifier">hours</span><span class="special">(</span><span class="number">1</span><span class="special">))),</span> |
| <span class="identifier">seconds_</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">chrono</span><span class="special">::</span><span class="identifier">duration_cast</span><span class="special"><</span><span class="identifier">seconds</span><span class="special">>(</span><span class="identifier">d</span> <span class="special">%</span> <span class="identifier">minutes</span><span class="special">(</span><span class="number">1</span><span class="special">)))</span> |
| <span class="special">{}</span> |
| <span class="special">};</span> |
| </pre> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="chrono.appendices.implementation"></a><a class="link" href="appendices.html#chrono.appendices.implementation" title="Appendix: Implementation Notes">Appendix: Implementation |
| Notes</a> |
| </h3></div></div></div> |
| <h5> |
| <a name="chrono.appendices.implementation.h0"></a> |
| <span class="phrase"><a name="chrono.appendices.implementation.which_apis_have_been_chosen_to_implement_each_clock_on_each_platform_"></a></span><a class="link" href="appendices.html#chrono.appendices.implementation.which_apis_have_been_chosen_to_implement_each_clock_on_each_platform_">Which |
| APIs have been chosen to implement each clock on each platform?</a> |
| </h5> |
| <p> |
| The following table presents a resume of which API is used for each clock |
| on each platform |
| </p> |
| <div class="table"> |
| <a name="chrono.appendices.implementation.clock_api_correspondence"></a><p class="title"><b>Table 6.4. Clock API correspondence</b></p> |
| <div class="table-contents"><table class="table" summary="Clock API correspondence"> |
| <colgroup> |
| <col> |
| <col> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| Clock |
| </p> |
| </th> |
| <th> |
| <p> |
| Windows Platform |
| </p> |
| </th> |
| <th> |
| <p> |
| Posix Platform |
| </p> |
| </th> |
| <th> |
| <p> |
| Mac Platform |
| </p> |
| </th> |
| </tr></thead> |
| <tbody> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.system_clock" title="Class system_clock"><code class="computeroutput"><span class="identifier">system_clock</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| GetSystemTimeAsFileTime |
| </p> |
| </td> |
| <td> |
| <p> |
| clock_gettime( CLOCK_REALTIME) |
| </p> |
| </td> |
| <td> |
| <p> |
| gettimeofday |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.cpp0x.system_clocks_hpp.steady_clock" title="Class steady_clock"><code class="computeroutput"><span class="identifier">steady_clock</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| QueryPerformanceCounter and QueryPerformanceFrequency |
| </p> |
| </td> |
| <td> |
| <p> |
| clock_gettime( CLOCK_STEADY) |
| </p> |
| </td> |
| <td> |
| <p> |
| mach_timebase_info,mach_absolute_time |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_real_cpu_clock" title="Class process_real_cpu_clock"><code class="computeroutput"><span class="identifier">process_real_cpu_clock</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| GetProcessTimes |
| </p> |
| </td> |
| <td> |
| <p> |
| times |
| </p> |
| </td> |
| <td> |
| <p> |
| times |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_system_cpu_clock" title="Class process_system_cpu_clock"><code class="computeroutput"><span class="identifier">process_system_cpu_clock</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| GetProcessTimes |
| </p> |
| </td> |
| <td> |
| <p> |
| times |
| </p> |
| </td> |
| <td> |
| <p> |
| times |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_user_cpu_clock" title="Class process_user_cpu_clock"><code class="computeroutput"><span class="identifier">process_user_cpu_clock</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| GetProcessTimes |
| </p> |
| </td> |
| <td> |
| <p> |
| times |
| </p> |
| </td> |
| <td> |
| <p> |
| times |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.process_cpu_clocks_hpp.process_cpu_clock" title="Class process_cpu_clock"><code class="computeroutput"><span class="identifier">process_cpu_clock</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| GetProcessTimes |
| </p> |
| </td> |
| <td> |
| <p> |
| times |
| </p> |
| </td> |
| <td> |
| <p> |
| times |
| </p> |
| </td> |
| </tr> |
| <tr> |
| <td> |
| <p> |
| <a class="link" href="reference.html#chrono.reference.other_clocks.thread_clock_hpp.thread_clock" title="Class thread_clock"><code class="computeroutput"><span class="identifier">thread_clock</span></code></a> |
| </p> |
| </td> |
| <td> |
| <p> |
| GetThreadTimes |
| </p> |
| </td> |
| <td> |
| <p> |
| clock_gettime(pthread_getcpuclockid) |
| </p> |
| </td> |
| <td> |
| <p> |
| clock_gettime(pthread_getcpuclockid) |
| </p> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <br class="table-break"> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="chrono.appendices.faq"></a><a class="link" href="appendices.html#chrono.appendices.faq" title="Appendix: FAQ">Appendix: FAQ</a> |
| </h3></div></div></div> |
| <h5> |
| <a name="chrono.appendices.faq.h0"></a> |
| <span class="phrase"><a name="chrono.appendices.faq.why_does_process_cpu_clock_sometimes_give_more_cpu_seconds_than_real_seconds_"></a></span><a class="link" href="appendices.html#chrono.appendices.faq.why_does_process_cpu_clock_sometimes_give_more_cpu_seconds_than_real_seconds_">Why |
| does process_cpu_clock sometimes give more cpu seconds than real seconds?</a> |
| </h5> |
| <p> |
| Ask your operating system supplier. The results have been inspected with |
| a debugger, and both for Windows and Linux, that's what the OS appears to |
| be reporting at times. |
| </p> |
| <h5> |
| <a name="chrono.appendices.faq.h1"></a> |
| <span class="phrase"><a name="chrono.appendices.faq.are_integer_overflows_in_the_duration_arithmetic_detected_and_reported_"></a></span><a class="link" href="appendices.html#chrono.appendices.faq.are_integer_overflows_in_the_duration_arithmetic_detected_and_reported_">Are |
| integer overflows in the duration arithmetic detected and reported?</a> |
| </h5> |
| <p> |
| <span class="bold"><strong>Boost.Ratio</strong></span> avoids all kind of overflow |
| that could result of arithmetic operation and that can be simplified. The |
| typedefs durations don't detect overflow. You will need a duration representation |
| that handles overflow. |
| </p> |
| <h5> |
| <a name="chrono.appendices.faq.h2"></a> |
| <span class="phrase"><a name="chrono.appendices.faq.which_clocks_should_be_used_to_benchmarking_"></a></span><a class="link" href="appendices.html#chrono.appendices.faq.which_clocks_should_be_used_to_benchmarking_">Which |
| clocks should be used to benchmarking?</a> |
| </h5> |
| <p> |
| Each clock has his own features. It depends on what do you need to benchmark. |
| Most of the time, you could be interested in using a thread clock, but if |
| you need to measure code subject to synchronization a process clock would |
| be better. If you have a multi-process application, a system-wide clock could |
| be needed. |
| </p> |
| <h5> |
| <a name="chrono.appendices.faq.h3"></a> |
| <span class="phrase"><a name="chrono.appendices.faq.which_clocks_should_be_used_for_watching_"></a></span><a class="link" href="appendices.html#chrono.appendices.faq.which_clocks_should_be_used_for_watching_">Which |
| clocks should be used for watching?</a> |
| </h5> |
| <p> |
| For trace purposes, it is probably best to use a system-wide clock. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="chrono.appendices.acknowledgements"></a><a class="link" href="appendices.html#chrono.appendices.acknowledgements" title="Appendix: Acknowledgements">Appendix: Acknowledgements</a> |
| </h3></div></div></div> |
| <p> |
| The library's code was derived from Howard Hinnant's time2_demo prototype. |
| Many thanks to Howard for making his code available under the Boost license. |
| The original code was modified by Beman Dawes to conform to Boost conventions. |
| </p> |
| <p> |
| time2_demo contained this comment: |
| </p> |
| <p> |
| Much thanks to Andrei Alexandrescu, Walter Brown, Peter Dimov, Jeff Garland, |
| Terry Golubiewski, Daniel Krugler, Anthony Williams. |
| </p> |
| <p> |
| The file <boost/chrono_io.hpp> has been adapted from the experimental |
| header <code class="computeroutput"><span class="special"><</span><span class="identifier">chrono_io</span><span class="special">></span></code> from Howard Hinnant. Thanks for all Howard. |
| </p> |
| <p> |
| Howard Hinnant, who is the real author of the library, has provided valuable |
| feedback and suggestions during the development of the library. In particular, |
| The chrono_io_io.hpp source has been adapted from the experimental header |
| <code class="computeroutput"><span class="special"><</span><span class="identifier">chrono_io</span><span class="special">></span></code> from Howard Hinnant. |
| </p> |
| <p> |
| The acceptance review of Boost.Ratio took place between November 5th and |
| 15th 2010. Many thanks to Anthony Williams, the review manager, and to all |
| the reviewers: David Deakins, John Bytheway, Roland Bock and Paul A. Bristow. |
| </p> |
| <p> |
| Thanks to Ronald Bock, Andrew Chinoff, Paul A. Bristow and John Bytheway |
| for his help polishing the documentation. |
| </p> |
| <p> |
| Thanks to Tom Tan for reporting some compiler issues with MSVC V10 beta and |
| MinGW-gcc-4.4.0 and for the many pushing for an homogeneous <code class="computeroutput"><span class="identifier">process_cpu_clock</span></code> clock. |
| </p> |
| <p> |
| Thanks to Ronald Bock for reporting Valgind issues and for the many suggestions |
| he made concerning the documentation. |
| </p> |
| </div> |
| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="chrono.appendices.todo"></a><a class="link" href="appendices.html#chrono.appendices.todo" title="Appendix: Future plans">Appendix: Future plans</a> |
| </h3></div></div></div> |
| <h5> |
| <a name="chrono.appendices.todo.h0"></a> |
| <span class="phrase"><a name="chrono.appendices.todo.for_later_releases"></a></span><a class="link" href="appendices.html#chrono.appendices.todo.for_later_releases">For |
| later releases</a> |
| </h5> |
| <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> |
| <li class="listitem"> |
| Include Stopwatches. |
| </li> |
| <li class="listitem"> |
| Add User defined literals for some durations. |
| </li> |
| <li class="listitem"> |
| Include chrono::date as defined by Howard Hinnant <a href="http://home.roadrunner.com/~hinnant/bloomington/date.html" target="_top">here</a>. |
| </li> |
| </ul></div> |
| </div> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2008 Howard Hinnant<br>Copyright © 2006, 2008 Beman Dawes<br>Copyright © 2009-2013 Vicente J. Botet Escriba<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
| </p> |
| </div></td> |
| </tr></table> |
| <hr> |
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