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[boost][range] - Ticket 6149 - as_literal causing unnecessary copy (on very silly compilers)

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[SVN r77992]
This commit is contained in:
Neil Groves
2012-04-15 12:18:02 +00:00
parent 11238e4c19
commit e6279d4436
1 changed files with 16 additions and 16 deletions
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32
include/boost/range/as_literal.hpp
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@ -25,7 +25,7 @@
#include <boost/detail/workaround.hpp>
#include <cstring>
#ifndef BOOST_NO_CWCHAR
#ifndef BOOST_NO_CWCHAR
#include <cwchar>
#endif
@ -38,72 +38,72 @@ namespace boost
return strlen( s );
}
#ifndef BOOST_NO_CWCHAR
#ifndef BOOST_NO_CWCHAR
inline std::size_t length( const wchar_t* s )
{
return wcslen( s );
}
#endif
#endif
//
// Remark: the compiler cannot choose between T* and T[sz]
// overloads, so we must put the T* internal to the
// unconstrained version.
//
//
inline bool is_char_ptr( char* )
{
return true;
}
inline bool is_char_ptr( const char* )
{
return true;
}
#ifndef BOOST_NO_CWCHAR
#ifndef BOOST_NO_CWCHAR
inline bool is_char_ptr( wchar_t* )
{
return true;
}
inline bool is_char_ptr( const wchar_t* )
{
return true;
}
#endif
template< class T >
inline long is_char_ptr( T /* r */ )
inline long is_char_ptr( const T& /* r */ )
{
return 0L;
}
template< class T >
inline iterator_range<T*>
inline iterator_range<T*>
make_range( T* const r, bool )
{
return iterator_range<T*>( r, r + length(r) );
}
template< class T >
inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<T>::type>
inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<T>::type>
make_range( T& r, long )
{
return boost::make_iterator_range( r );
}
}
template< class Range >
inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<Range>::type>
inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<Range>::type>
as_literal( Range& r )
{
return range_detail::make_range( r, range_detail::is_char_ptr(r) );
}
template< class Range >
inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<const Range>::type>
inline iterator_range<BOOST_DEDUCED_TYPENAME range_iterator<const Range>::type>
as_literal( const Range& r )
{
return range_detail::make_range( r, range_detail::is_char_ptr(r) );
@ -112,9 +112,9 @@ namespace boost
template< class Char, std::size_t sz >
inline iterator_range<Char*> as_literal( Char (&arr)[sz] )
{
return range_detail::make_range( arr, range_detail::is_char_ptr(arr) );
return range_detail::make_range( arr, range_detail::is_char_ptr(arr) );
}
template< class Char, std::size_t sz >
inline iterator_range<const Char*> as_literal( const Char (&arr)[sz] )
{