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Author SHA1 Message Date
nobody e6be985c4e This commit was manufactured by cvs2svn to create tag
'Version_1_19_0'.

[SVN r8447]
2000-12-10 15:53:47 +00:00
Beman Dawes beb912a139 Remove nested namespace cast in preparaton for formal review, fix spacing.
[SVN r8370]
2000-11-30 19:10:30 +00:00
Dave Abrahams 4728acd652 GCC 2.95.2 bug workaround courtesy Jens Maurer
[SVN r8346]
2000-11-28 05:04:54 +00:00
John Maddock e3ecdf7a27 fixes for Borland C++ Builder
[SVN r8135]
2000-11-04 12:39:28 +00:00
Dave Abrahams 02436dd1c6 Added a fix for compilers sensitive to the presence of "template" on template
members of templates (e.g. EDG-based compilers like CXX on the Alpha)


[SVN r8129]
2000-11-04 09:00:02 +00:00
+66 -55
View File
@@ -9,8 +9,11 @@
// See http://www.boost.org for most recent version including documentation.
// Revision History
// 29 Nov 00 Remove nested namespace cast, cleanup spacing before Formal
// Review (Beman Dawes)
// 19 Oct 00 Fix numeric_cast for floating-point types (Dave Abrahams)
// 15 Jul 00 Suppress numeric_cast warnings for GCC, Borland and MSVC (Dave Abrahams)
// 15 Jul 00 Suppress numeric_cast warnings for GCC, Borland and MSVC
// (Dave Abrahams)
// 30 Jun 00 More MSVC6 wordarounds. See comments below. (Dave Abrahams)
// 28 Jun 00 Removed implicit_cast<>. See comment below. (Beman Dawes)
// 27 Jun 00 More MSVC6 workarounds
@@ -49,16 +52,13 @@
namespace boost
{
namespace detail {
namespace detail
{
template <class T> struct type_wrapper {};
}
#if !(defined(BOOST_MSVC) && BOOST_MSVC <= 1200) // 1200 = VC6
namespace cast
{
#endif
// See the documentation for descriptions of how to choose between
// static_cast<>, dynamic_cast<>, polymorphic_cast<>. and down_cast<>
// static_cast<>, dynamic_cast<>, polymorphic_cast<> and polymorphic_downcast<>
// polymorphic_cast --------------------------------------------------------//
@@ -117,10 +117,13 @@ namespace boost
// numeric_cast ------------------------------------------------------------//
// Move to config.hpp?
#if defined(__SGI_STL_PORT) && __SGI_STL_PORT <= 0x400 && __STL_STATIC_CONST_INIT_BUG
#if defined(_RWSTD_VER) || (defined(__SGI_STL_PORT) && __SGI_STL_PORT <= 0x400 && __STL_STATIC_CONST_INIT_BUG)
// STLPort 4.0 doesn't define the static constants in numeric_limits<> so that they
// can be used at compile time if the compiler bug indicated by
// __STL_STATIC_CONST_INIT_BUG is present.
// Rogue wave STL (C++ Builder) also has broken numeric_limits
// with default template defining members out of line.
# define BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS
#endif
@@ -133,33 +136,50 @@ namespace boost
template<>
struct numeric_min_select<true>
{
template <class T>
struct limits : std::numeric_limits<T>
{
static inline T min()
{
return std::numeric_limits<T>::min() >= 0
// unary minus causes integral promotion, thus the static_cast<>
? static_cast<T>(-std::numeric_limits<T>::max())
: std::numeric_limits<T>::min();
}
};
template <class T>
struct limits : std::numeric_limits<T>
{
static inline T min()
# ifndef __GNUC__ // bug workaround courtesy Jens Maurer
{
return std::numeric_limits<T>::min() >= 0
// unary minus causes integral promotion, thus the static_cast<>
? static_cast<T>(-std::numeric_limits<T>::max())
: std::numeric_limits<T>::min();
}
# else
;
# endif
};
};
template<>
struct numeric_min_select<false>
{
template <class T>
struct limits : std::numeric_limits<T> {};
};
// Move to namespace boost in utility.hpp?
template <class T>
struct fixed_numeric_limits
: public numeric_min_select<std::numeric_limits<T>::is_signed>::limits<T>
{
};
}
# ifdef __GNUC__ // bug workaround courtesy Jens Maurer
template<> template<class T>
inline T numeric_min_select<true>::limits<T>::min()
{
return std::numeric_limits<T>::min() >= 0
// unary minus causes integral promotion, thus the static_cast<>
? static_cast<T>(-std::numeric_limits<T>::max())
: std::numeric_limits<T>::min();
}
# endif
template<>
struct numeric_min_select<false>
{
template <class T>
struct limits : std::numeric_limits<T> {};
};
// Move to namespace boost in utility.hpp?
template <class T>
struct fixed_numeric_limits
: public numeric_min_select<
std::numeric_limits<T>::is_signed
>::template limits<T>
{
};
} // namespace detail
// less_than_type_min -
// x_is_signed should be numeric_limits<X>::is_signed
@@ -244,11 +264,14 @@ namespace boost
#else // use #pragma hacks if available
namespace detail {
namespace detail
{
# if BOOST_MSVC
# pragma warning(push)
# pragma warning(disable : 4018)
# pragma warning(disable : 4146)
#elif defined(__BORLANDC__)
#pragma option push -w-8041
# endif
// Move to namespace boost in utility.hpp?
template <class T>
@@ -262,8 +285,10 @@ namespace boost
};
# if BOOST_MSVC
# pragma warning(pop)
#elif defined(__BORLANDC__)
#pragma option pop
# endif
}
} // namespace detail
#endif
@@ -294,37 +319,23 @@ namespace boost
# if BOOST_MSVC
# pragma warning(push)
# pragma warning(disable : 4018)
#elif defined(__BORLANDC__)
#pragma option push -w-8012
# endif
if ((arg < 0 && !result_traits::is_signed) // loss of negative range
|| (arg_traits::is_signed && arg < result_traits::min()) // underflow
|| arg > result_traits::max()) // overflow
# if BOOST_MSVC
# pragma warning(pop)
#elif defined(__BORLANDC__)
#pragma option pop
# endif
#endif
{
throw bad_numeric_cast();
}
return static_cast<Target>(arg);
}
// Visual C++ workarounds --------------------------------------------------//
# if !(defined(BOOST_MSVC) && BOOST_MSVC <= 1200) // 1200 = VC6
} // namespace cast
using ::boost::cast::polymorphic_cast;
using ::boost::cast::polymorphic_downcast;
using ::boost::cast::bad_numeric_cast;
using ::boost::cast::numeric_cast;
# else
namespace cast {
using ::boost::polymorphic_cast;
using ::boost::polymorphic_downcast;
using ::boost::bad_numeric_cast;
using ::boost::numeric_cast;
}
# endif
} // numeric_cast
# undef BOOST_EXPLICIT_DEFAULT_TARGET
# undef BOOST_EXPLICIT_TARGET