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| <div class="titlepage"><div><div><h2 class="title" style="clear: both"> |
| <a name="range.portability"></a><a class="link" href="portability.html" title="Portability">Portability</a> |
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| <p> |
| A huge effort has been made to port the library to as many compilers as possible. |
| </p> |
| <p> |
| Full support for built-in arrays require that the compiler supports class template |
| partial specialization. For non-conforming compilers there might be a chance |
| that it works anyway thanks to workarounds in the type traits library. Visual |
| C++ 6/7.0 has a limited support for arrays: as long as the arrays are of built-in |
| type it should work. |
| </p> |
| <p> |
| Notice also that some compilers cannot do function template ordering properly. |
| In that case one must rely of <a class="link" href="reference/concept_implementation/semantics/metafunctions.html" title="Metafunctions"><code class="computeroutput"><span class="identifier">range_iterator</span></code></a> and a single function |
| definition instead of overloaded versions for const and non-const arguments. |
| So if one cares about old compilers, one should not pass rvalues to the functions. |
| </p> |
| <p> |
| For maximum portability you should follow these guidelines: |
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| <div class="orderedlist"><ol class="orderedlist" type="1"> |
| <li class="listitem"> |
| do not use built-in arrays, |
| </li> |
| <li class="listitem"> |
| do not pass rvalues to <a class="link" href="reference/concept_implementation/semantics/functions.html" title="Functions"><code class="computeroutput"><span class="identifier">begin</span></code></a><code class="computeroutput"><span class="special">()</span></code>, |
| <a class="link" href="reference/concept_implementation/semantics/functions.html" title="Functions"><code class="computeroutput"><span class="identifier">end</span></code></a><code class="computeroutput"><span class="special">()</span></code> |
| and <a class="link" href="reference/utilities/iterator_range.html" title="Class iterator_range"><code class="computeroutput"><span class="identifier">iterator_range</span></code></a> Range constructors |
| and assignment operators, |
| </li> |
| <li class="listitem"> |
| use <a class="link" href="reference/concept_implementation/semantics/functions.html" title="Functions"><code class="computeroutput"><span class="identifier">const_begin</span></code></a><code class="computeroutput"><span class="special">()</span></code> |
| and <a class="link" href="reference/concept_implementation/semantics/functions.html" title="Functions"><code class="computeroutput"><span class="identifier">const_end</span></code></a><code class="computeroutput"><span class="special">()</span></code> |
| whenever your code by intention is read-only; this will also solve most |
| rvalue problems, |
| </li> |
| <li class="listitem"> |
| do not rely on ADL: |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"> |
| if you overload functions, include that header before the headers |
| in this library, |
| </li> |
| <li class="listitem"> |
| put all overloads in namespace boost. |
| </li> |
| </ul></div> |
| </li> |
| </ol></div> |
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| <td align="right"><div class="copyright-footer">Copyright © 2003 -2010 Thorsten Ottosen, Neil Groves<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>) |
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