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| <div class="titlepage"><div><div><h2 class="title" style="clear: both"> |
| <a name="boost_units.ReleaseNotes"></a><a class="link" href="ReleaseNotes.html" title="Release Notes">Release Notes</a> |
| </h2></div></div></div> |
| <p> |
| 1.2 (March 2010) |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"> |
| Added autoprefix ready for Boost 1.43 |
| </li></ul></div> |
| <p> |
| 1.0.0 (August 1, 2008) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"> |
| Initial release with Boost 1.36 |
| </li></ul></div> |
| <p> |
| 0.7.1 (March 14, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| Boost.Typeof emulation support. |
| </li> |
| <li class="listitem"> |
| attempting to rebind a heterogeneous_system to a different set of dimensions |
| now fails. |
| </li> |
| <li class="listitem"> |
| cmath.hpp now works with como-win32. |
| </li> |
| <li class="listitem"> |
| minor changes to the tests and examples to make msvc 7.1 happy. |
| </li> |
| </ul></div> |
| <p> |
| 0.7.0 (March 13, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| heterogeneous and mixed system functionality added. |
| </li> |
| <li class="listitem"> |
| added fine-grained implicit unit conversion on a per fundamental dimension |
| basis. |
| </li> |
| <li class="listitem"> |
| added a number of utility metafunction classes and predicates. |
| </li> |
| <li class="listitem"> |
| <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.operators_hpp" title="Header <boost/units/operators.hpp>">boost/units/operators.hpp</a></code> |
| now uses <code class="computeroutput"><span class="identifier">BOOST_TYPEOF</span></code> when |
| possible. |
| </li> |
| <li class="listitem"> |
| angular units added in <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.systems.angle.gradians_hpp" title="Header <boost/units/systems/angle/gradians.hpp>">boost/units/systems/angle/gradians.hpp</a></code> |
| and <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.systems.angle.gradians_hpp" title="Header <boost/units/systems/angle/gradians.hpp>">boost/units/systems/angle/gradians.hpp</a></code>. |
| Implicit conversion of radians between trigonometric, SI, and CGS systems |
| is allowed. |
| </li> |
| <li class="listitem"> |
| a variety of <span class="underline"><code class="computeroutput"><a class="link" href="../boost/units/unit.html" title="Class template unit">unit</a></code></span> |
| and <span class="underline"><code class="computeroutput"><a class="link" href="../boost/units/quantity.html" title="Class template quantity">quantity</a></code></span> |
| tests added. |
| </li> |
| <li class="listitem"> |
| examples now provide self-tests. |
| </li> |
| </ul></div> |
| <p> |
| 0.6.2 (February 22, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| changed template order in <code class="computeroutput"><span class="identifier">unit</span></code> |
| so dimension precedes unit system |
| </li> |
| <li class="listitem"> |
| added <code class="computeroutput"><span class="identifier">homogeneous_system</span><span class="special"><</span><span class="identifier">S</span><span class="special">></span></code> for unit systems |
| </li> |
| <li class="listitem"> |
| incorporated changes to <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.dimension_hpp" title="Header <boost/units/dimension.hpp>">boost/units/dimension.hpp</a></code> |
| (compile-time sorting by predicate), <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.conversion_hpp" title="Header <boost/units/conversion.hpp>">boost/units/conversion.hpp</a></code> |
| (thread-safe implementation of quantity conversions), and <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.io_hpp" title="Header <boost/units/io.hpp>">boost/units/io.hpp</a></code> |
| (now works with any <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span></code>) |
| by SW |
| </li> |
| <li class="listitem"> |
| added abstract units in <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.systems.abstract_hpp" title="Header <boost/units/systems/abstract.hpp>">boost/units/systems/abstract.hpp</a></code> |
| to allow abstract dimensional analysis |
| </li> |
| <li class="listitem"> |
| new example demonstrating implementation of code based on requirements |
| from Michael Fawcett (<a href="../../../libs/units/example/radar_beam_height.cpp" target="_top">radar_beam_height.cpp</a>) |
| </li> |
| </ul></div> |
| <p> |
| 0.6.1 (February 13, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <p class="simpara"> |
| added metafunctions to test if a type is |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="circle"> |
| <li class="listitem"> |
| a valid dimension list (<code class="computeroutput"><span class="identifier">is_dimension_list</span><span class="special"><</span><span class="identifier">D</span><span class="special">></span></code>) |
| </li> |
| <li class="listitem"> |
| a unit (<code class="computeroutput"><span class="identifier">is_unit</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> |
| and <code class="computeroutput"><span class="identifier">is_unit_of_system</span><span class="special"><</span><span class="identifier">U</span><span class="special">,</span><span class="identifier">System</span><span class="special">></span></code>) |
| </li> |
| <li class="listitem"> |
| a quantity (<code class="computeroutput"><span class="identifier">is_quantity</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> and <code class="computeroutput"><span class="identifier">is_quantity_of_system</span><span class="special"><</span><span class="identifier">Q</span><span class="special">,</span><span class="identifier">System</span><span class="special">></span></code>) |
| </li> |
| </ul></div> |
| </li> |
| <li class="listitem"> |
| quantity conversion factor is now computed at compile time |
| </li> |
| <li class="listitem"> |
| static constants now avoid ODR problems |
| </li> |
| <li class="listitem"> |
| unit_example_14.cpp now uses Boost.Timer |
| </li> |
| <li class="listitem"> |
| numerous minor fixes suggested by SW |
| </li> |
| </ul></div> |
| <p> |
| 0.6.0 (February 8, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"> |
| incorporated Steven Watanabe's optimized code for dimension.hpp, leading |
| to <span class="bold"><strong>dramatic</strong></span> decreases in compilation time |
| (nearly a factor of 10 for unit_example_4.cpp in my tests). |
| </li></ul></div> |
| <p> |
| 0.5.8 (February 7, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| fixed <code class="computeroutput"><span class="preprocessor">#include</span></code> in <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.systems.si.base_hpp" title="Header <boost/units/systems/si/base.hpp>">boost/units/systems/si/base.hpp</a></code> |
| (thanks to Michael Fawcett and Steven Watanabe) |
| </li> |
| <li class="listitem"> |
| removed references to obsolete <code class="computeroutput"><span class="identifier">base_type</span></code> |
| in <span class="underline">__unit_info</span> (thanks to Michael |
| Fawcett) |
| </li> |
| <li class="listitem"> |
| moved functions in <code class="computeroutput"><a class="link" href="Reference.html#header.boost.units.cmath_hpp" title="Header <boost/units/cmath.hpp>">boost/units/cmath.hpp</a></code> |
| into <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">units</span></code> namespace (thanks to Steven Watanabe) |
| </li> |
| <li class="listitem"> |
| fixed <code class="computeroutput"><span class="preprocessor">#include</span></code> guards |
| to be consistently named <code class="computeroutput"><span class="identifier">BOOST_UNITS_XXX</span></code> |
| (thanks to Steven Watanabe) |
| </li> |
| </ul></div> |
| <p> |
| 0.5.7 (February 5, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| changed quantity conversion helper to increase flexibility |
| </li> |
| <li class="listitem"> |
| minor documentation changes |
| </li> |
| <li class="listitem"> |
| submitted for formal review as a Boost library |
| </li> |
| </ul></div> |
| <p> |
| 0.5.6 (January 22, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| added IEEE 1541 standard binary prefixes along with SI prefixes to and |
| extended algebra of <code class="computeroutput"><span class="identifier">scale</span></code> |
| and <code class="computeroutput"><span class="identifier">scaled_value</span></code> classes |
| (thanks to Kevin Lynch) |
| </li> |
| <li class="listitem"> |
| split SI units into separate header files to minimize the "kitchen |
| sink" include problem (thanks to Janek Kozicki) |
| </li> |
| <li class="listitem"> |
| added convenience classes for declaring fundamental dimensions and composite |
| dimensions with integral powers (<code class="computeroutput"><span class="identifier">fundamental_dimension</span></code> |
| and <code class="computeroutput"><span class="identifier">composite_dimension</span></code> |
| respectively) |
| </li> |
| </ul></div> |
| <p> |
| 0.5.5 (January 18, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| template parameter order in <code class="computeroutput"><span class="identifier">quantity</span></code> |
| switched and default <code class="computeroutput"><span class="identifier">value_type</span></code> |
| of <code class="computeroutput"><span class="keyword">double</span></code> added (thanks to |
| Andrey Semashev and Paul Bristow) |
| </li> |
| <li class="listitem"> |
| added implicit <code class="computeroutput"><span class="identifier">value_type</span></code> |
| conversion where allowed (thanks to Andrey Semashev) |
| </li> |
| <li class="listitem"> |
| <p class="simpara"> |
| added <code class="computeroutput"><span class="identifier">quantity_cast</span></code> for |
| three cases (thanks to Andrey Semashev): |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="circle"> |
| <li class="listitem"> |
| constructing <code class="computeroutput"><span class="identifier">quantity</span></code> |
| from raw <code class="computeroutput"><span class="identifier">value_type</span></code> |
| </li> |
| <li class="listitem"> |
| casting from one <code class="computeroutput"><span class="identifier">value_type</span></code> |
| to another |
| </li> |
| <li class="listitem"> |
| casting from one <code class="computeroutput"><span class="identifier">unit</span></code> |
| to another (where conversion is allowed) |
| </li> |
| </ul></div> |
| </li> |
| <li class="listitem"> |
| added<code class="computeroutput"> <span class="identifier">metre</span></code> and <code class="computeroutput"><span class="identifier">metres</span></code> and related constants to the SI |
| system for the convenience of our Commonwealth friends... |
| </li> |
| </ul></div> |
| <p> |
| 0.5.4 (January 12, 2007) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| completely reimplemented unit conversion to allow for arbitrary unit conversions |
| between systems |
| </li> |
| <li class="listitem"> |
| strict quantity construction is default; quantities can be constructed |
| from bare values by using static member <code class="computeroutput"><span class="identifier">from_value</span></code> |
| </li> |
| </ul></div> |
| <p> |
| 0.5.3 (December 12, 2006) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| added Boost.Serialization support to <code class="computeroutput"><span class="identifier">unit</span></code> |
| and <code class="computeroutput"><span class="identifier">quantity</span></code> classes |
| </li> |
| <li class="listitem"> |
| added option to enforce strict construction of quantities (only constructible |
| by multiplication of scalar by unit or quantity by unit) by preprocessor |
| <code class="computeroutput"><span class="identifier">MCS_STRICT_QUANTITY_CONSTRUCTION</span></code> |
| switch |
| </li> |
| </ul></div> |
| <p> |
| 0.5.2 (December 4, 2006) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"> |
| added <code class="computeroutput"><span class="special"><</span><span class="identifier">cmath</span><span class="special">></span></code> wrappers in the <code class="computeroutput"><span class="identifier">std</span></code> |
| namespace for functions that can support quantities |
| </li></ul></div> |
| <p> |
| 0.5.1 (November 3, 2006) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| converted to Boost Software License |
| </li> |
| <li class="listitem"> |
| boostified directory structure and file paths |
| </li> |
| </ul></div> |
| <p> |
| 0.5 (November 2, 2006) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| completely reimplemented SI and CGS unit systems and changed syntax for |
| quantities |
| </li> |
| <li class="listitem"> |
| significantly streamlined <code class="computeroutput"><span class="identifier">pow</span></code> |
| and <code class="computeroutput"><span class="identifier">root</span></code> so for most applications |
| it is only necessary to define <code class="computeroutput"><span class="identifier">power_typeof_helper</span></code> |
| and <code class="computeroutput"><span class="identifier">root_typeof_helper</span></code> |
| to gain this functionality |
| </li> |
| <li class="listitem"> |
| added a selection of physical constants from the CODATA tables |
| </li> |
| <li class="listitem"> |
| added a skeleton <code class="computeroutput"><span class="identifier">complex</span></code> |
| class that correctly supports both <code class="computeroutput"><span class="identifier">complex</span><span class="special"><</span><span class="identifier">quantity</span><span class="special"><</span><span class="identifier">Y</span><span class="special">,</span><span class="identifier">Unit</span><span class="special">></span> <span class="special">></span></code> |
| and <code class="computeroutput"><span class="identifier">quantity</span><span class="special"><</span><span class="identifier">complex</span><span class="special"><</span><span class="identifier">Y</span><span class="special">>,</span><span class="identifier">Unit</span><span class="special">></span></code> |
| as an example |
| </li> |
| <li class="listitem"> |
| investigate using Boost.Typeof for compilers that do not support <code class="computeroutput"><span class="identifier">typeof</span></code> |
| </li> |
| </ul></div> |
| <p> |
| 0.4 (October 13, 2006) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| <code class="computeroutput"><span class="identifier">pow</span><span class="special"><</span><span class="identifier">R</span><span class="special">></span></code> |
| and <code class="computeroutput"><span class="identifier">root</span><span class="special"><</span><span class="identifier">R</span><span class="special">></span></code> |
| improved for user-defined types |
| </li> |
| <li class="listitem"> |
| added unary + and unary - operators |
| </li> |
| <li class="listitem"> |
| added new example of interfacing with <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">math</span><span class="special">::</span><span class="identifier">quaternion</span></code> |
| </li> |
| <li class="listitem"> |
| added optional preprocessor switch to enable implicit unit conversions |
| (<code class="computeroutput"><span class="identifier">BOOST_UNITS_ENABLE_IMPLICIT_UNIT_CONVERSIONS</span></code>) |
| </li> |
| </ul></div> |
| <p> |
| 0.3 (September 6, 2006) : |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"> |
| Support for <code class="computeroutput"><span class="identifier">op</span><span class="special">(</span><span class="identifier">X</span> <span class="identifier">x</span><span class="special">,</span><span class="identifier">Y</span> <span class="identifier">y</span><span class="special">)</span></code> for g++ added. This is automatically active |
| when compiling with gcc and can be optionally enabled by defining the preprocessor |
| constant <code class="computeroutput"><span class="identifier">BOOST_UNITS_HAS_TYPEOF</span></code> |
| </li></ul></div> |
| <p> |
| 0.2 (September 4, 2006) : Second alpha release based on slightly modified code |
| from 0.1 release |
| </p> |
| <p> |
| 0.1 (December 13, 2003) : written as a Boost demonstration of MPL-based dimensional |
| analysis in 2003. |
| </p> |
| </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 © 2003 -2008 Matthias Christian Schabel, 2007-2010 Steven |
| Watanabe<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> |
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