mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-08 10:51:03 +00:00
9a2bf73e31
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19398 a592a061-630c-0410-9148-cb99ea01b6c8
237 lines
7.7 KiB
C++
237 lines
7.7 KiB
C++
/* boost integer_traits.hpp header file
|
|
*
|
|
* Copyright Jens Maurer 2000
|
|
* Distributed under the Boost Software License, Version 1.0. (See
|
|
* accompanying file LICENSE_1_0.txt or copy at
|
|
* http://www.boost.org/LICENSE_1_0.txt)
|
|
*
|
|
* $Id: integer_traits.hpp 32576 2006-02-05 10:19:42Z johnmaddock $
|
|
*
|
|
* Idea by Beman Dawes, Ed Brey, Steve Cleary, and Nathan Myers
|
|
*/
|
|
|
|
// See http://www.boost.org/libs/integer for documentation.
|
|
|
|
|
|
#ifndef BOOST_INTEGER_TRAITS_HPP
|
|
#define BOOST_INTEGER_TRAITS_HPP
|
|
|
|
#include <boost/config.hpp>
|
|
#include <boost/limits.hpp>
|
|
|
|
// These are an implementation detail and not part of the interface
|
|
#include <limits.h>
|
|
// we need wchar.h for WCHAR_MAX/MIN but not all platforms provide it,
|
|
// and some may have <wchar.h> but not <cwchar> ...
|
|
#if !defined(BOOST_NO_INTRINSIC_WCHAR_T) && (!defined(BOOST_NO_CWCHAR) || defined(sun) || defined(__sun) || defined(__QNX__))
|
|
#include <wchar.h>
|
|
#endif
|
|
|
|
|
|
namespace boost {
|
|
template<class T>
|
|
class integer_traits : public std::numeric_limits<T>
|
|
{
|
|
public:
|
|
BOOST_STATIC_CONSTANT(bool, is_integral = false);
|
|
};
|
|
|
|
namespace detail {
|
|
template<class T, T min_val, T max_val>
|
|
class integer_traits_base
|
|
{
|
|
public:
|
|
BOOST_STATIC_CONSTANT(bool, is_integral = true);
|
|
BOOST_STATIC_CONSTANT(T, const_min = min_val);
|
|
BOOST_STATIC_CONSTANT(T, const_max = max_val);
|
|
};
|
|
|
|
#ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
|
|
// A definition is required even for integral static constants
|
|
template<class T, T min_val, T max_val>
|
|
const bool integer_traits_base<T, min_val, max_val>::is_integral;
|
|
|
|
template<class T, T min_val, T max_val>
|
|
const T integer_traits_base<T, min_val, max_val>::const_min;
|
|
|
|
template<class T, T min_val, T max_val>
|
|
const T integer_traits_base<T, min_val, max_val>::const_max;
|
|
#endif
|
|
|
|
} // namespace detail
|
|
|
|
template<>
|
|
class integer_traits<bool>
|
|
: public std::numeric_limits<bool>,
|
|
public detail::integer_traits_base<bool, false, true>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits<char>
|
|
: public std::numeric_limits<char>,
|
|
public detail::integer_traits_base<char, CHAR_MIN, CHAR_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits<signed char>
|
|
: public std::numeric_limits<signed char>,
|
|
public detail::integer_traits_base<signed char, SCHAR_MIN, SCHAR_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits<unsigned char>
|
|
: public std::numeric_limits<unsigned char>,
|
|
public detail::integer_traits_base<unsigned char, 0, UCHAR_MAX>
|
|
{ };
|
|
|
|
#ifndef BOOST_NO_INTRINSIC_WCHAR_T
|
|
template<>
|
|
class integer_traits<wchar_t>
|
|
: public std::numeric_limits<wchar_t>,
|
|
// Don't trust WCHAR_MIN and WCHAR_MAX with Mac OS X's native
|
|
// library: they are wrong!
|
|
#if defined(WCHAR_MIN) && defined(WCHAR_MAX) && !defined(__APPLE__)
|
|
public detail::integer_traits_base<wchar_t, WCHAR_MIN, WCHAR_MAX>
|
|
#elif defined(__BORLANDC__) || defined(__CYGWIN__) || defined(__MINGW32__) || (defined(__BEOS__) && defined(__GNUC__))
|
|
// No WCHAR_MIN and WCHAR_MAX, whar_t is short and unsigned:
|
|
public detail::integer_traits_base<wchar_t, 0, 0xffff>
|
|
#elif (defined(__sgi) && (!defined(__SGI_STL_PORT) || __SGI_STL_PORT < 0x400))\
|
|
|| (defined __APPLE__)\
|
|
|| (defined(__OpenBSD__) && defined(__GNUC__))\
|
|
|| (defined(__NetBSD__) && defined(__GNUC__))\
|
|
|| (defined(__FreeBSD__) && defined(__GNUC__))\
|
|
|| (defined(__DragonFly__) && defined(__GNUC__))\
|
|
|| (defined(__hpux) && defined(__GNUC__) && (__GNUC__ == 3) && !defined(__SGI_STL_PORT))
|
|
// No WCHAR_MIN and WCHAR_MAX, wchar_t has the same range as int.
|
|
// - SGI MIPSpro with native library
|
|
// - gcc 3.x on HP-UX
|
|
// - Mac OS X with native library
|
|
// - gcc on FreeBSD, OpenBSD and NetBSD
|
|
public detail::integer_traits_base<wchar_t, INT_MIN, INT_MAX>
|
|
#elif defined(__hpux) && defined(__GNUC__) && (__GNUC__ == 2) && !defined(__SGI_STL_PORT)
|
|
// No WCHAR_MIN and WCHAR_MAX, wchar_t has the same range as unsigned int.
|
|
// - gcc 2.95.x on HP-UX
|
|
// (also, std::numeric_limits<wchar_t> appears to return the wrong values).
|
|
public detail::integer_traits_base<wchar_t, 0, UINT_MAX>
|
|
#else
|
|
#error No WCHAR_MIN and WCHAR_MAX present, please adjust integer_traits<> for your compiler.
|
|
#endif
|
|
{ };
|
|
#endif // BOOST_NO_INTRINSIC_WCHAR_T
|
|
|
|
template<>
|
|
class integer_traits<short>
|
|
: public std::numeric_limits<short>,
|
|
public detail::integer_traits_base<short, SHRT_MIN, SHRT_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits<unsigned short>
|
|
: public std::numeric_limits<unsigned short>,
|
|
public detail::integer_traits_base<unsigned short, 0, USHRT_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits<int>
|
|
: public std::numeric_limits<int>,
|
|
public detail::integer_traits_base<int, INT_MIN, INT_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits<unsigned int>
|
|
: public std::numeric_limits<unsigned int>,
|
|
public detail::integer_traits_base<unsigned int, 0, UINT_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits<long>
|
|
: public std::numeric_limits<long>,
|
|
public detail::integer_traits_base<long, LONG_MIN, LONG_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits<unsigned long>
|
|
: public std::numeric_limits<unsigned long>,
|
|
public detail::integer_traits_base<unsigned long, 0, ULONG_MAX>
|
|
{ };
|
|
|
|
#if !defined(BOOST_NO_INTEGRAL_INT64_T) && !defined(BOOST_NO_INT64_T)
|
|
#if defined(ULLONG_MAX) && defined(BOOST_HAS_LONG_LONG)
|
|
|
|
template<>
|
|
class integer_traits< ::boost::long_long_type>
|
|
: public std::numeric_limits< ::boost::long_long_type>,
|
|
public detail::integer_traits_base< ::boost::long_long_type, LLONG_MIN, LLONG_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits< ::boost::ulong_long_type>
|
|
: public std::numeric_limits< ::boost::ulong_long_type>,
|
|
public detail::integer_traits_base< ::boost::ulong_long_type, 0, ULLONG_MAX>
|
|
{ };
|
|
|
|
#elif defined(ULONG_LONG_MAX) && defined(BOOST_HAS_LONG_LONG)
|
|
|
|
template<>
|
|
class integer_traits< ::boost::long_long_type> : public std::numeric_limits< ::boost::long_long_type>, public detail::integer_traits_base< ::boost::long_long_type, LONG_LONG_MIN, LONG_LONG_MAX>{ };
|
|
template<>
|
|
class integer_traits< ::boost::ulong_long_type>
|
|
: public std::numeric_limits< ::boost::ulong_long_type>,
|
|
public detail::integer_traits_base< ::boost::ulong_long_type, 0, ULONG_LONG_MAX>
|
|
{ };
|
|
|
|
#elif defined(ULONGLONG_MAX) && defined(BOOST_HAS_LONG_LONG)
|
|
|
|
template<>
|
|
class integer_traits< ::boost::long_long_type>
|
|
: public std::numeric_limits< ::boost::long_long_type>,
|
|
public detail::integer_traits_base< ::boost::long_long_type, LONGLONG_MIN, LONGLONG_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits< ::boost::ulong_long_type>
|
|
: public std::numeric_limits< ::boost::ulong_long_type>,
|
|
public detail::integer_traits_base< ::boost::ulong_long_type, 0, ULONGLONG_MAX>
|
|
{ };
|
|
|
|
#elif defined(_LLONG_MAX) && defined(_C2) && defined(BOOST_HAS_LONG_LONG)
|
|
|
|
template<>
|
|
class integer_traits< ::boost::long_long_type>
|
|
: public std::numeric_limits< ::boost::long_long_type>,
|
|
public detail::integer_traits_base< ::boost::long_long_type, -_LLONG_MAX - _C2, _LLONG_MAX>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits< ::boost::ulong_long_type>
|
|
: public std::numeric_limits< ::boost::ulong_long_type>,
|
|
public detail::integer_traits_base< ::boost::ulong_long_type, 0, _ULLONG_MAX>
|
|
{ };
|
|
|
|
#elif defined(BOOST_HAS_LONG_LONG)
|
|
//
|
|
// we have long long but no constants, this happens for example with gcc in -ansi mode,
|
|
// we'll just have to work out the values for ourselves (assumes 2's compliment representation):
|
|
//
|
|
template<>
|
|
class integer_traits< ::boost::long_long_type>
|
|
: public std::numeric_limits< ::boost::long_long_type>,
|
|
public detail::integer_traits_base< ::boost::long_long_type, (1LL << (sizeof(::boost::long_long_type) - 1)), ~(1LL << (sizeof(::boost::long_long_type) - 1))>
|
|
{ };
|
|
|
|
template<>
|
|
class integer_traits< ::boost::ulong_long_type>
|
|
: public std::numeric_limits< ::boost::ulong_long_type>,
|
|
public detail::integer_traits_base< ::boost::ulong_long_type, 0, ~0uLL>
|
|
{ };
|
|
|
|
#endif
|
|
#endif
|
|
|
|
} // namespace boost
|
|
|
|
#endif /* BOOST_INTEGER_TRAITS_HPP */
|
|
|
|
|
|
|