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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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A huge effort has been made to port the library to as many compilers as possible.
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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.
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Notice also that some compilers cannot do function template ordering properly.
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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
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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.
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For maximum portability you should follow these guidelines:
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do not use built-in arrays,
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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,
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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,
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do not rely on ADL:
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if you overload functions, include that header before the headers in
this library,
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put all overloads in namespace boost.
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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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