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Beginning of a failed attempt to appease Borland

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[SVN r9041]
This commit is contained in:
Dave Abrahams
2001-02-09 03:27:40 +00:00
parent b05b38810c
commit bafe0703a6
1 changed files with 11 additions and 6 deletions
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17
include/boost/counting_iterator.hpp
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@ -28,6 +28,8 @@
// Incrementable.
//
// Revision History
// 08 Feb 2001 Beginning of a failed attempt to appease Borland
// (David Abrahams)
// 07 Feb 2001 rename counting_iterator() -> make_counting_iterator()
// (David Abrahams)
// 04 Feb 2001 Added counting_iterator_generator; updated comments
@ -136,16 +138,19 @@ namespace detail {
template <class Incrementable>
struct counting_iterator_traits {
private:
typedef typename detail::counting_iterator_traits_select<(
enum {
is_numeric =
#ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
std::numeric_limits<Incrementable>::is_specialized
#else
// Causes warnings with GCC, but how else can I detect numeric types at
// compile-time?
(boost::is_convertible<int,Incrementable>::value &&
boost::is_convertible<Incrementable,int>::value)
// Try to detect numeric types at compile time
boost::is_convertible<int,Incrementable>::value
&& boost::is_convertible<Incrementable,int>::value
#endif
)>::template traits<Incrementable> traits;
};
typedef typename detail::counting_iterator_traits_select<
is_numeric>::template traits<Incrementable> traits;
public:
typedef Incrementable value_type;
typedef const Incrementable& reference;