boostorg/detail
1
0
Fork 1
mirror of https://github.com/boostorg/detail.git synced 2025-08-01 05:14:28 +02:00
Code Issues Packages Projects Releases Wiki Activity

Rolled back ineffective Borland-specific code

Browse Source 
[SVN r9115]
This commit is contained in:
Dave Abrahams
2001-02-11 16:11:24 +00:00
parent d0f656c4da
commit dc1186e73f
1 changed files with 3 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
include/boost/detail/numeric_traits.hpp
View File

@@ -49,6 +49,8 @@
// See http://www.boost.org for most recent version including documentation.
// Revision History
// 11 Feb 2001 - Rolled back ineffective Borland-specific code
// (David Abrahams)
// 10 Feb 2001 - Rolled in supposed Borland fixes from John Maddock, but
// not seeing any improvement yet (David Abrahams)
// 06 Feb 2001 - Factored if_true out into boost/detail/select_type.hpp
@@ -125,37 +127,9 @@ namespace boost { namespace detail {
};
#endif
#ifdef __BORLANDC__ // // This code from John Maddock, but doesn't seem to make any difference
template <class T, bool is_signed, bool is_big, bool is_ptr_diff>
struct select_diff
{
typedef std::ptrdiff_t difference_type;
};
template <class T, bool is_ptr_diff>
struct select_diff<T, true, true, is_ptr_diff>
{
typedef T difference_type;
};
template <class T, bool is_ptr_diff>
struct select_diff<T, false, true, is_ptr_diff>
{
typedef intmax_t difference_type;
};
template <class T, bool is_signed>
struct select_diff<T, is_signed, false, true>
{
typedef std::ptrdiff_t difference_type;
};
template <class T, bool is_signed>
struct select_diff<T, is_signed, false, false>
{
typedef intmax_t difference_type;
};
#endif
// Template class integer_traits<Integer> -- traits of various integer types
// This should probably be rolled into boost::integer_traits one day, but I
// need it to work without <limits>
// need it to work without <limits>
template <class Integer>
struct integer_traits
{
@@ -190,14 +164,6 @@ struct select_diff<T, is_signed, false, false>
// else
intmax_t
>::type>::type>::type difference_type;
# elif defined(__BORLANDC__) // This code from John Maddock, but doesn't seem to make any difference
BOOST_STATIC_ASSERT(boost::is_integral<Integer>::value);
typedef select_diff<Integer,
(::boost::detail::is_signed<Integer>::value),
(sizeof(Integer) >= sizeof(intmax_t)),
(sizeof(Integer) < sizeof(std::ptrdiff_t))> t;
typedef typename t::difference_type difference_type;
#else
BOOST_STATIC_ASSERT(boost::is_integral<Integer>::value);