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ported to KAI C++

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[SVN r8955]
This commit is contained in:
Jeremy Siek
2001-02-06 01:21:11 +00:00
parent 4bfd4da650
commit 82af891892
1 changed files with 10 additions and 6 deletions
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16
include/boost/detail/numeric_traits.hpp
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@@ -94,7 +94,11 @@ namespace boost { namespace detail {
template <class Number> template <class Number>
struct is_signed struct is_signed
{ {
enum { value = (Number(-1) < Number(0)) }; #if defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) || defined(BOOST_MSVC)
enum { value = (Number(-1) < Number(0)) };
#else
enum { value = std::numeric_limits<Number>::is_signed };
#endif
}; };
# ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS # ifndef BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
@@ -156,16 +160,16 @@ namespace boost { namespace detail {
# endif # endif
public: public:
typedef typename typedef typename
if_true<(x::is_signed if_true<(!int(x::is_signed)
&& (!x::is_bounded && (!int(x::is_bounded)
// digits is the number of no-sign bits // digits is the number of no-sign bits
|| (x::digits + 1 >= digit_traits<boost::intmax_t>::digits)))>::template then< || (int(x::digits) + 1 >= digit_traits<boost::intmax_t>::digits)))>::template then<
Integer, Integer,
typename if_true<(x::digits + 1 < digit_traits<signed int>::digits)>::template then< typename if_true<(int(x::digits) + 1 < digit_traits<signed int>::digits)>::template then<
signed int, signed int,
typename if_true<(x::digits + 1 < digit_traits<signed long>::digits)>::template then< typename if_true<(int(x::digits) + 1 < digit_traits<signed long>::digits)>::template then<
signed long, signed long,
// else // else