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<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="math_toolkit.compilers_overview"></a><a class="link" href="compilers_overview.html" title="Compilers">Compilers</a>
</h2></div></div></div>
<p>
      This section contains some information about how various compilers work with
      this library. It is not comprehensive and updated experiences are always welcome.
      Some effort has been made to suppress unhelpful warnings but it is difficult
      to achieve this on all systems.
    </p>
<div class="table">
<a name="math_toolkit.compilers_overview.supported_tested_compilers"></a><p class="title"><b>Table&#160;1.9.&#160;Supported/Tested Compilers</b></p>
<div class="table-contents"><table class="table" summary="Supported/Tested Compilers">
<colgroup>
<col>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
              <p>
                Platform
              </p>
            </th>
<th>
              <p>
                Compiler
              </p>
            </th>
<th>
              <p>
                Has long double support
              </p>
            </th>
<th>
              <p>
                Notes
              </p>
            </th>
</tr></thead>
<tbody>
<tr>
<td>
              <p>
                Windows
              </p>
            </td>
<td>
              <p>
                MSVC 7.1 and later
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                We aim to keep our headers warning free at level 4 with this compiler.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Windows
              </p>
            </td>
<td>
              <p>
                Intel 8.1 and later
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                We aim to keep our headers warning free at level 4 with this compiler.
                However, The tests cases tend to generate a lot of warnings relating
                to numeric underflow of the test data: these are harmless.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Windows
              </p>
            </td>
<td>
              <p>
                GNU Mingw32 C++
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                We aim to keep our headers warning free with -Wall with this compiler.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Windows
              </p>
            </td>
<td>
              <p>
                GNU Cygwin C++
              </p>
            </td>
<td>
              <p>
                No
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                We aim to keep our headers warning free with -Wall with this compiler.
              </p>
              <p>
                Long double support has been disabled because there are no native
                long double C std library functions available.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Windows
              </p>
            </td>
<td>
              <p>
                Borland C++ 5.8.2 (Developer studio 2006)
              </p>
            </td>
<td>
              <p>
                No
              </p>
            </td>
<td>
              <p>
                We have only partial compatibility with this compiler:
              </p>
              <p>
                Long double support has been disabled because the native long double
                C standard library functions really only forward to the double versions.
                This can result in unpredictable behaviour when using the long double
                overloads: for example <code class="computeroutput"><span class="identifier">sqrtl</span></code>
                applied to a finite value, can result in an infinite result.
              </p>
              <p>
                Some functions still fail to compile, there are no known workarounds
                at present.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Windows 7/Netbeans 7.2
              </p>
            </td>
<td>
              <p>
                Clang 3.1
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                Spot examples OK. Expect all tests to compile and run OK.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Linux
              </p>
            </td>
<td>
              <p>
                GNU C++ 3.4 and later
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                We aim to keep our headers warning free with -Wall with this compiler.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Linux
              </p>
            </td>
<td>
              <p>
                Clang 3.2
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Linux
              </p>
            </td>
<td>
              <p>
                Intel C++ 10.0 and later
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                We aim to keep our headers warning free with -Wall with this compiler.
                However, The tests cases tend to generate a lot of warnings relating
                to numeric underflow of the test data: these are harmless.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Linux
              </p>
            </td>
<td>
              <p>
                Intel C++ 8.1 and 9.1
              </p>
            </td>
<td>
              <p>
                No
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                Long double support has been disabled with these compiler releases
                because calling the standard library long double math functions can
                result in a segfault. The issue is Linux distribution and glibc version
                specific and is Intel bug report #409291. Fully up to date releases
                of Intel 9.1 (post version l_cc_c_9.1.046) shouldn't have this problem.
                If you need long double support with this compiler, then comment
                out the define of BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS at line
                55 of <a href="../../../../../boost/math/tools/config.hpp" target="_top">boost/math/tools/config.hpp</a>.
              </p>
              <p>
                We aim to keep our headers warning free with -Wall with this compiler.
                However, The tests cases tend to generate a lot of warnings relating
                to numeric underflow of the test data: these are harmless.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Linux
              </p>
            </td>
<td>
              <p>
                QLogic PathScale 3.0
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                Some tests involving conceptual checks fail to build, otherwise there
                appear to be no issues.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Linux
              </p>
            </td>
<td>
              <p>
                Sun Studio 12
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                Some tests involving function overload resolution fail to build,
                these issues should be rarely encountered in practice.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Solaris
              </p>
            </td>
<td>
              <p>
                Sun Studio 12
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                Some tests involving function overload resolution fail to build,
                these issues should be rarely encountered in practice.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Solaris
              </p>
            </td>
<td>
              <p>
                GNU C++ 4.x
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                We aim to keep our headers warning free with -Wall with this compiler.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                HP Tru64
              </p>
            </td>
<td>
              <p>
                Compaq C++ 7.1
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                HP-UX Itanium
              </p>
            </td>
<td>
              <p>
                HP aCC 6.x
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                Unfortunately this compiler emits quite a few warnings from libraries
                upon which we depend (TR1, Array etc).
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                HP-UX PA-RISC
              </p>
            </td>
<td>
              <p>
                GNU C++ 3.4
              </p>
            </td>
<td>
              <p>
                No
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Apple Mac OS X, Intel
              </p>
            </td>
<td>
              <p>
                Darwin/GNU C++ 4.x
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Apple Mac OS X, PowerPC
              </p>
            </td>
<td>
              <p>
                Darwin/GNU C++ 4.x
              </p>
            </td>
<td>
              <p>
                No
              </p>
            </td>
<td>
              <p>
                All tests OK.
              </p>
              <p>
                Long double support has been disabled on this platform due to the
                rather strange nature of Darwin's 106-bit long double implementation.
                It should be possible to make this work if someone is prepared to
                offer assistance.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Apple Mac OS X,
              </p>
            </td>
<td>
              <p>
                Clang 3.2
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests expected to be OK.
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                IBM AIX
              </p>
            </td>
<td>
              <p>
                IBM xlc 5.3
              </p>
            </td>
<td>
              <p>
                Yes
              </p>
            </td>
<td>
              <p>
                All tests pass except for our fpclassify tests which fail due to
                a bug in <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</span></code>, the bug effects
                the test code, not fpclassify itself. The IBM compiler group are
                aware of the problem.
              </p>
            </td>
</tr>
</tbody>
</table></div>
</div>
<br class="table-break"><div class="table">
<a name="math_toolkit.compilers_overview.unsupported_compilers"></a><p class="title"><b>Table&#160;1.10.&#160;Unsupported Compilers</b></p>
<div class="table-contents"><table class="table" summary="Unsupported Compilers">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
              <p>
                Platform
              </p>
            </th>
<th>
              <p>
                Compiler
              </p>
            </th>
</tr></thead>
<tbody>
<tr>
<td>
              <p>
                Windows
              </p>
            </td>
<td>
              <p>
                Borland C++ 5.9.2 (Borland Developer Studio 2007)
              </p>
            </td>
</tr>
<tr>
<td>
              <p>
                Windows
              </p>
            </td>
<td>
              <p>
                MSVC 6 and 7
              </p>
            </td>
</tr>
</tbody>
</table></div>
</div>
<br class="table-break"><p>
      If your compiler or platform is not listed above, please try running the regression
      tests: cd into boost-root/libs/math/test and do a:
    </p>
<pre class="programlisting"><span class="identifier">bjam</span> <span class="identifier">mytoolset</span>
</pre>
<p>
      where "mytoolset" is the name of the <a href="http://www.boost.org/doc/html/bbv2.html" target="_top">Boost.Build</a>
      toolset used for your compiler. The chances are that <span class="bold"><strong>many
      of the accuracy tests will fail at this stage</strong></span> - don't panic - the
      default acceptable error tolerances are quite tight, especially for long double
      types with an extended exponent range (these cause more extreme test cases
      to be executed for some functions). You will need to cast an eye over the output
      from the failing tests and make a judgement as to whether the error rates are
      acceptable or not.
    </p>
</div>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2006-2019 Nikhar
      Agrawal, Anton Bikineev, Paul A. Bristow, Marco Guazzone, Christopher Kormanyos,
      Hubert Holin, Bruno Lalande, John Maddock, Jeremy Murphy, Matthew Pulver, Johan
      R&#229;de, Gautam Sewani, Benjamin Sobotta, Nicholas Thompson, Thijs van den Berg,
      Daryle Walker and Xiaogang Zhang<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>
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