1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>Release Notes</title> 6<link rel="stylesheet" href="../../../doc/src/boostbook.css" type="text/css"> 7<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 8<link rel="home" href="../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> 9<link rel="up" href="../boost_units.html" title="Chapter 43. Boost.Units 1.1.0"> 10<link rel="prev" href="version_id.html" title="Version Info"> 11<link rel="next" href="TODO.html" title="TODO"> 12</head> 13<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 14<table cellpadding="2" width="100%"><tr> 15<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../boost.png"></td> 16<td align="center"><a href="../../../index.html">Home</a></td> 17<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td> 18<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 19<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 20<td align="center"><a href="../../../more/index.htm">More</a></td> 21</tr></table> 22<hr> 23<div class="spirit-nav"> 24<a accesskey="p" href="version_id.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost_units.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="TODO.html"><img src="../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="section"> 27<div class="titlepage"><div><div><h2 class="title" style="clear: both"> 28<a name="boost_units.ReleaseNotes"></a><a class="link" href="ReleaseNotes.html" title="Release Notes">Release Notes</a> 29</h2></div></div></div> 30<p> 31 1.2 (March 2010) 32 </p> 33<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> 34 Added autoprefix ready for Boost 1.43 35 </li></ul></div> 36<p> 37 1.0.0 (August 1, 2008) : 38 </p> 39<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> 40 Initial release with Boost 1.36 41 </li></ul></div> 42<p> 43 0.7.1 (March 14, 2007) : 44 </p> 45<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 46<li class="listitem"> 47 Boost.Typeof emulation support. 48 </li> 49<li class="listitem"> 50 attempting to rebind a heterogeneous_system to a different set of dimensions 51 now fails. 52 </li> 53<li class="listitem"> 54 cmath.hpp now works with como-win32. 55 </li> 56<li class="listitem"> 57 minor changes to the tests and examples to make msvc 7.1 happy. 58 </li> 59</ul></div> 60<p> 61 0.7.0 (March 13, 2007) : 62 </p> 63<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 64<li class="listitem"> 65 heterogeneous and mixed system functionality added. 66 </li> 67<li class="listitem"> 68 added fine-grained implicit unit conversion on a per fundamental dimension 69 basis. 70 </li> 71<li class="listitem"> 72 added a number of utility metafunction classes and predicates. 73 </li> 74<li class="listitem"> 75 <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> 76 now uses <code class="computeroutput"><span class="identifier">BOOST_TYPEOF</span></code> when 77 possible. 78 </li> 79<li class="listitem"> 80 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> 81 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>. 82 Implicit conversion of radians between trigonometric, SI, and CGS systems 83 is allowed. 84 </li> 85<li class="listitem"> 86 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> 87 and <span class="underline"><code class="computeroutput"><a class="link" href="../boost/units/quantity.html" title="Class template quantity">quantity</a></code></span> 88 tests added. 89 </li> 90<li class="listitem"> 91 examples now provide self-tests. 92 </li> 93</ul></div> 94<p> 95 0.6.2 (February 22, 2007) : 96 </p> 97<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 98<li class="listitem"> 99 changed template order in <code class="computeroutput"><span class="identifier">unit</span></code> 100 so dimension precedes unit system 101 </li> 102<li class="listitem"> 103 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 104 </li> 105<li class="listitem"> 106 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> 107 (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> 108 (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> 109 (now works with any <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span></code>) 110 by SW 111 </li> 112<li class="listitem"> 113 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> 114 to allow abstract dimensional analysis 115 </li> 116<li class="listitem"> 117 new example demonstrating implementation of code based on requirements 118 from Michael Fawcett (<a href="../../../libs/units/example/radar_beam_height.cpp" target="_top">radar_beam_height.cpp</a>) 119 </li> 120</ul></div> 121<p> 122 0.6.1 (February 13, 2007) : 123 </p> 124<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 125<li class="listitem"> 126 added metafunctions to test if a type is 127 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> 128<li class="listitem"> 129 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>) 130 </li> 131<li class="listitem"> 132 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> 133 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>) 134 </li> 135<li class="listitem"> 136 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>) 137 </li> 138</ul></div> 139 </li> 140<li class="listitem"> 141 quantity conversion factor is now computed at compile time 142 </li> 143<li class="listitem"> 144 static constants now avoid ODR problems 145 </li> 146<li class="listitem"> 147 unit_example_14.cpp now uses Boost.Timer 148 </li> 149<li class="listitem"> 150 numerous minor fixes suggested by SW 151 </li> 152</ul></div> 153<p> 154 0.6.0 (February 8, 2007) : 155 </p> 156<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> 157 incorporated Steven Watanabe's optimized code for dimension.hpp, leading 158 to <span class="bold"><strong>dramatic</strong></span> decreases in compilation time 159 (nearly a factor of 10 for unit_example_4.cpp in my tests). 160 </li></ul></div> 161<p> 162 0.5.8 (February 7, 2007) : 163 </p> 164<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 165<li class="listitem"> 166 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> 167 (thanks to Michael Fawcett and Steven Watanabe) 168 </li> 169<li class="listitem"> 170 removed references to obsolete <code class="computeroutput"><span class="identifier">base_type</span></code> 171 in <span class="underline">__unit_info</span> (thanks to Michael 172 Fawcett) 173 </li> 174<li class="listitem"> 175 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> 176 into <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">units</span></code> namespace (thanks to Steven Watanabe) 177 </li> 178<li class="listitem"> 179 fixed <code class="computeroutput"><span class="preprocessor">#include</span></code> guards 180 to be consistently named <code class="computeroutput"><span class="identifier">BOOST_UNITS_XXX</span></code> 181 (thanks to Steven Watanabe) 182 </li> 183</ul></div> 184<p> 185 0.5.7 (February 5, 2007) : 186 </p> 187<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 188<li class="listitem"> 189 changed quantity conversion helper to increase flexibility 190 </li> 191<li class="listitem"> 192 minor documentation changes 193 </li> 194<li class="listitem"> 195 submitted for formal review as a Boost library 196 </li> 197</ul></div> 198<p> 199 0.5.6 (January 22, 2007) : 200 </p> 201<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 202<li class="listitem"> 203 added IEEE 1541 standard binary prefixes along with SI prefixes to and 204 extended algebra of <code class="computeroutput"><span class="identifier">scale</span></code> 205 and <code class="computeroutput"><span class="identifier">scaled_value</span></code> classes 206 (thanks to Kevin Lynch) 207 </li> 208<li class="listitem"> 209 split SI units into separate header files to minimize the "kitchen 210 sink" include problem (thanks to Janek Kozicki) 211 </li> 212<li class="listitem"> 213 added convenience classes for declaring fundamental dimensions and composite 214 dimensions with integral powers (<code class="computeroutput"><span class="identifier">fundamental_dimension</span></code> 215 and <code class="computeroutput"><span class="identifier">composite_dimension</span></code> 216 respectively) 217 </li> 218</ul></div> 219<p> 220 0.5.5 (January 18, 2007) : 221 </p> 222<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 223<li class="listitem"> 224 template parameter order in <code class="computeroutput"><span class="identifier">quantity</span></code> 225 switched and default <code class="computeroutput"><span class="identifier">value_type</span></code> 226 of <code class="computeroutput"><span class="keyword">double</span></code> added (thanks to 227 Andrey Semashev and Paul Bristow) 228 </li> 229<li class="listitem"> 230 added implicit <code class="computeroutput"><span class="identifier">value_type</span></code> 231 conversion where allowed (thanks to Andrey Semashev) 232 </li> 233<li class="listitem"> 234 added <code class="computeroutput"><span class="identifier">quantity_cast</span></code> for 235 three cases (thanks to Andrey Semashev): 236 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; "> 237<li class="listitem"> 238 constructing <code class="computeroutput"><span class="identifier">quantity</span></code> 239 from raw <code class="computeroutput"><span class="identifier">value_type</span></code> 240 </li> 241<li class="listitem"> 242 casting from one <code class="computeroutput"><span class="identifier">value_type</span></code> 243 to another 244 </li> 245<li class="listitem"> 246 casting from one <code class="computeroutput"><span class="identifier">unit</span></code> 247 to another (where conversion is allowed) 248 </li> 249</ul></div> 250 </li> 251<li class="listitem"> 252 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 253 system for the convenience of our Commonwealth friends... 254 </li> 255</ul></div> 256<p> 257 0.5.4 (January 12, 2007) : 258 </p> 259<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 260<li class="listitem"> 261 completely reimplemented unit conversion to allow for arbitrary unit conversions 262 between systems 263 </li> 264<li class="listitem"> 265 strict quantity construction is default; quantities can be constructed 266 from bare values by using static member <code class="computeroutput"><span class="identifier">from_value</span></code> 267 </li> 268</ul></div> 269<p> 270 0.5.3 (December 12, 2006) : 271 </p> 272<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 273<li class="listitem"> 274 added Boost.Serialization support to <code class="computeroutput"><span class="identifier">unit</span></code> 275 and <code class="computeroutput"><span class="identifier">quantity</span></code> classes 276 </li> 277<li class="listitem"> 278 added option to enforce strict construction of quantities (only constructible 279 by multiplication of scalar by unit or quantity by unit) by preprocessor 280 <code class="computeroutput"><span class="identifier">MCS_STRICT_QUANTITY_CONSTRUCTION</span></code> 281 switch 282 </li> 283</ul></div> 284<p> 285 0.5.2 (December 4, 2006) : 286 </p> 287<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> 288 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> 289 namespace for functions that can support quantities 290 </li></ul></div> 291<p> 292 0.5.1 (November 3, 2006) : 293 </p> 294<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 295<li class="listitem"> 296 converted to Boost Software License 297 </li> 298<li class="listitem"> 299 boostified directory structure and file paths 300 </li> 301</ul></div> 302<p> 303 0.5 (November 2, 2006) : 304 </p> 305<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 306<li class="listitem"> 307 completely reimplemented SI and CGS unit systems and changed syntax for 308 quantities 309 </li> 310<li class="listitem"> 311 significantly streamlined <code class="computeroutput"><span class="identifier">pow</span></code> 312 and <code class="computeroutput"><span class="identifier">root</span></code> so for most applications 313 it is only necessary to define <code class="computeroutput"><span class="identifier">power_typeof_helper</span></code> 314 and <code class="computeroutput"><span class="identifier">root_typeof_helper</span></code> 315 to gain this functionality 316 </li> 317<li class="listitem"> 318 added a selection of physical constants from the CODATA tables 319 </li> 320<li class="listitem"> 321 added a skeleton <code class="computeroutput"><span class="identifier">complex</span></code> 322 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> 323 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> 324 as an example 325 </li> 326<li class="listitem"> 327 investigate using Boost.Typeof for compilers that do not support <code class="computeroutput"><span class="identifier">typeof</span></code> 328 </li> 329</ul></div> 330<p> 331 0.4 (October 13, 2006) : 332 </p> 333<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 334<li class="listitem"> 335 <code class="computeroutput"><span class="identifier">pow</span><span class="special"><</span><span class="identifier">R</span><span class="special">></span></code> 336 and <code class="computeroutput"><span class="identifier">root</span><span class="special"><</span><span class="identifier">R</span><span class="special">></span></code> 337 improved for user-defined types 338 </li> 339<li class="listitem"> 340 added unary + and unary - operators 341 </li> 342<li class="listitem"> 343 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> 344 </li> 345<li class="listitem"> 346 added optional preprocessor switch to enable implicit unit conversions 347 (<code class="computeroutput"><span class="identifier">BOOST_UNITS_ENABLE_IMPLICIT_UNIT_CONVERSIONS</span></code>) 348 </li> 349</ul></div> 350<p> 351 0.3 (September 6, 2006) : 352 </p> 353<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> 354 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 355 when compiling with gcc and can be optionally enabled by defining the preprocessor 356 constant <code class="computeroutput"><span class="identifier">BOOST_UNITS_HAS_TYPEOF</span></code> 357 </li></ul></div> 358<p> 359 0.2 (September 4, 2006) : Second alpha release based on slightly modified code 360 from 0.1 release 361 </p> 362<p> 363 0.1 (December 13, 2003) : written as a Boost demonstration of MPL-based dimensional 364 analysis in 2003. 365 </p> 366</div> 367<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 368<td align="left"></td> 369<td align="right"><div class="copyright-footer">Copyright © 2003-2008 Matthias Christian Schabel<br>Copyright © 2007-2010 Steven 370 Watanabe<p> 371 Distributed under the Boost Software License, Version 1.0. (See accompanying 372 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>) 373 </p> 374</div></td> 375</tr></table> 376<hr> 377<div class="spirit-nav"> 378<a accesskey="p" href="version_id.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost_units.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="TODO.html"><img src="../../../doc/src/images/next.png" alt="Next"></a> 379</div> 380</body> 381</html> 382
