williamr@2: /*
williamr@2:  * Copyright (c) 1998,1999
williamr@2:  * Silicon Graphics Computer Systems, Inc.
williamr@2:  *
williamr@4:  * Copyright (c) 1999
williamr@2:  * Boris Fomitchev
williamr@2:  *
williamr@2:  * This material is provided "as is", with absolutely no warranty expressed
williamr@2:  * or implied. Any use is at your own risk.
williamr@2:  *
williamr@4:  * Permission to use or copy this software for any purpose is hereby granted
williamr@2:  * without fee, provided the above notices are retained on all copies.
williamr@2:  * Permission to modify the code and to distribute modified code is granted,
williamr@2:  * provided the above notices are retained, and a notice that the code was
williamr@2:  * modified is included with the above copyright notice.
williamr@2:  *
williamr@2:  */
williamr@2: 
williamr@4: #ifndef _STLP_LIMITS_C
williamr@4: #define _STLP_LIMITS_C
williamr@2: 
williamr@4: #ifndef _STLP_INTERNAL_LIMITS
williamr@4: #  include <stl/_limits.h>
williamr@2: #endif
williamr@2: 
williamr@2: //==========================================================
williamr@2: //  numeric_limits static members
williamr@2: //==========================================================
williamr@2: 
williamr@2: _STLP_BEGIN_NAMESPACE
williamr@2: 
williamr@4: _STLP_MOVE_TO_PRIV_NAMESPACE
williamr@2: 
williamr@4: #if !defined (_STLP_STATIC_CONST_INIT_BUG)
williamr@4: 
williamr@4: #  define __declare_numeric_base_member(__type, __mem, _Init) \
williamr@2: template <class __number> \
williamr@2:   const __type _Numeric_limits_base<__number>:: __mem
williamr@2: 
williamr@2: __declare_numeric_base_member(bool, is_specialized, false);
williamr@2: __declare_numeric_base_member(int, digits, 0);
williamr@2: __declare_numeric_base_member(int, digits10, 0);
williamr@2: __declare_numeric_base_member(bool, is_signed, false);
williamr@2: __declare_numeric_base_member(bool, is_integer, false);
williamr@2: __declare_numeric_base_member(bool, is_exact, false);
williamr@2: __declare_numeric_base_member(int, radix, 0);
williamr@2: __declare_numeric_base_member(int, min_exponent, 0);
williamr@2: __declare_numeric_base_member(int, max_exponent, 0);
williamr@2: __declare_numeric_base_member(int, min_exponent10, 0);
williamr@2: __declare_numeric_base_member(int, max_exponent10, 0);
williamr@2: __declare_numeric_base_member(bool, has_infinity, false);
williamr@2: __declare_numeric_base_member(bool, has_quiet_NaN, false);
williamr@2: __declare_numeric_base_member(bool, has_signaling_NaN, false);
williamr@2: __declare_numeric_base_member(float_denorm_style, has_denorm, denorm_absent);
williamr@2: __declare_numeric_base_member(bool, has_denorm_loss, false);
williamr@2: __declare_numeric_base_member(bool, is_iec559, false);
williamr@2: __declare_numeric_base_member(bool, is_bounded, false);
williamr@2: __declare_numeric_base_member(bool, is_modulo, false);
williamr@2: __declare_numeric_base_member(bool, traps, false);
williamr@2: __declare_numeric_base_member(bool, tinyness_before, false);
williamr@2: __declare_numeric_base_member(float_round_style, round_style, round_toward_zero);
williamr@2: 
williamr@4: #  undef __declare_numeric_base_member
williamr@2: 
williamr@4: #  define __declare_integer_limits_member(__type, __mem, _Init) \
williamr@2: template <class _Int, _STLP_LIMITS_MIN_TYPE __imin, _STLP_LIMITS_MAX_TYPE __imax, int __idigits, bool __ismod> \
williamr@2:   const __type _Integer_limits<_Int, __imin, __imax, __idigits, __ismod>:: __mem
williamr@2: 
williamr@2: __declare_integer_limits_member(bool, is_specialized, true);
williamr@2: __declare_integer_limits_member(int, digits, (__idigits < 0) ? \
williamr@4:           ((int)((sizeof(_Int) * (CHAR_BIT))) - ((__imin == 0) ? 0 : 1)) \
williamr@2:                             : (__idigits) );
williamr@2: __declare_integer_limits_member(int, digits10, (int)(301UL * digits) /1000);
williamr@2: __declare_integer_limits_member(bool, is_signed, __imin != 0);
williamr@2: __declare_integer_limits_member(bool, is_integer, true);
williamr@2: __declare_integer_limits_member(bool, is_exact, true);
williamr@2: __declare_integer_limits_member(int, radix, 2);
williamr@2: __declare_integer_limits_member(bool, is_bounded, true);
williamr@2: __declare_integer_limits_member(bool, is_modulo, true);
williamr@4: #  undef __declare_integer_limits_member
williamr@2: 
williamr@4: #  define __declare_float_limits_member(__type, __mem, _Init) \
williamr@2: template <class __number,  \
williamr@2:          int __Digits, int __Digits10,    \
williamr@2:          int __MinExp, int __MaxExp,      \
williamr@2:          int __MinExp10, int __MaxExp10,  \
williamr@2:          bool __IsIEC559, \
williamr@2:          float_round_style __RoundStyle> \
williamr@2: const __type _Floating_limits< __number, __Digits, __Digits10,    \
williamr@2:          __MinExp, __MaxExp, __MinExp10, __MaxExp10,  \
williamr@2:          __IsIEC559, __RoundStyle>::\
williamr@2:          __mem
williamr@2: 
williamr@4: __declare_float_limits_member(bool, is_specialized, true);
williamr@4: __declare_float_limits_member(int, digits, __Digits);
williamr@4: __declare_float_limits_member(int, digits10, __Digits10);
williamr@4: __declare_float_limits_member(bool, is_signed, true);
williamr@4: __declare_float_limits_member(int, radix, FLT_RADIX);
williamr@4: __declare_float_limits_member(int, min_exponent, __MinExp);
williamr@4: __declare_float_limits_member(int, max_exponent, __MaxExp);
williamr@4: __declare_float_limits_member(int, min_exponent10, __MinExp10);
williamr@4: __declare_float_limits_member(int, max_exponent10, __MaxExp10);
williamr@2: __declare_float_limits_member(bool, has_infinity, true);
williamr@2: __declare_float_limits_member(bool, has_quiet_NaN, true);
williamr@2: __declare_float_limits_member(bool, has_signaling_NaN, true);
williamr@2: __declare_float_limits_member(float_denorm_style, has_denorm, denorm_indeterminate);
williamr@2: __declare_float_limits_member(bool, has_denorm_loss, false);
williamr@2: __declare_float_limits_member(bool, is_iec559, __IsIEC559);
williamr@2: __declare_float_limits_member(bool, is_bounded, true);
williamr@2: __declare_float_limits_member(bool, traps, true);
williamr@2: __declare_float_limits_member(bool, tinyness_before, false);
williamr@2: __declare_float_limits_member(float_round_style, round_style, __RoundStyle);
williamr@4: #  undef __declare_float_limits_member
williamr@2: 
williamr@4: #endif /* _STLP_STATIC_CONST_INIT_BUG */
williamr@2: 
williamr@2: 
williamr@4: #if defined (_STLP_EXPOSE_GLOBALS_IMPLEMENTATION)
williamr@2: 
williamr@4: #  if defined (_STLP_BIG_ENDIAN)
williamr@4: #    if defined (__OS400__)
williamr@4: #      define _STLP_FLOAT_INF_REP { 0x7f80, 0 }
williamr@4: #      define _STLP_FLOAT_QNAN_REP { 0xffc0, 0 }
williamr@4: #      define _STLP_FLOAT_SNAN_REP { 0xff80, 0 }
williamr@4: #      define _STLP_DOUBLE_INF_REP { 0x7ff0, 0, 0, 0 }
williamr@4: #      define _STLP_DOUBLE_QNAN_REP { 0xfff8, 0, 0, 0 }
williamr@4: #      define _STLP_DOUBLE_SNAN_REP { 0xfff0, 0, 0, 0 }
williamr@4: #      define _STLP_LDOUBLE_INF_REP { 0x7ff0, 0, 0, 0, 0, 0, 0, 0 }
williamr@4: #      define _STLP_LDOUBLE_QNAN_REP { 0xfff8, 0, 0, 0, 0, 0, 0, 0 }
williamr@4: #      define _STLP_LDOUBLE_SNAN_REP { 0xfff0, 0, 0, 0, 0, 0, 0, 0 }
williamr@4: #    else /* __OS400__ */
williamr@4: #      define _STLP_FLOAT_INF_REP   { 0x7f80, 0 }
williamr@4: #      define _STLP_FLOAT_QNAN_REP  { 0x7fc1, 0 }
williamr@4: #      define _STLP_FLOAT_SNAN_REP  { 0x7f81, 0 }
williamr@4: #      define _STLP_DOUBLE_INF_REP  { 0x7ff0, 0, 0, 0 }
williamr@4: #      define _STLP_DOUBLE_QNAN_REP { 0x7ff9, 0, 0, 0 }
williamr@4: #      define _STLP_DOUBLE_SNAN_REP { 0x7ff1, 0, 0, 0 }
williamr@4: #      define _STLP_LDOUBLE_INF_REP { 0x7ff0, 0, 0, 0, 0, 0, 0, 0 }
williamr@4: #      define _STLP_LDOUBLE_QNAN_REP { 0x7ff1, 0, 0, 0, 0, 0, 0, 0 }
williamr@4: #      define _STLP_LDOUBLE_SNAN_REP { 0x7ff9, 0, 0, 0, 0, 0, 0, 0 }
williamr@4: #    endif /* __OS400__ */
williamr@2: 
williamr@4: #  elif defined (_STLP_LITTLE_ENDIAN)
williamr@2: 
williamr@4: #    if 0 /* defined(_STLP_MSVC) || defined(__linux__) */
williamr@4: // some IA-32 platform ??
williamr@4: /*
williamr@4: #      define _STLP_FLOAT_INF_REP { 0, 0x7f80 }
williamr@4: #      define _STLP_FLOAT_QNAN_REP { 0, 0xffc0 }
williamr@4: #      define _STLP_FLOAT_SNAN_REP { 0, 0xff80 }
williamr@2: 
williamr@4: #      define _STLP_DOUBLE_INF_REP { 0, 0, 0, 0x7ff0 }
williamr@4: #      define _STLP_DOUBLE_QNAN_REP { 0, 0, 0, 0xfff8 }
williamr@4: #      define _STLP_DOUBLE_SNAN_REP { 0, 0, 0, 0xfff0 }
williamr@4: #      define _STLP_LDOUBLE_INF_REP { 0, 0, 0, 0x7FF0, 0 } // ????
williamr@4: #      define _STLP_LDOUBLE_QNAN_REP { 0, 0, 0, 0xFFF8, 0 } // ????
williamr@4: #      define _STLP_LDOUBLE_SNAN_REP { 0, 0, 0, 0xFFF0, 0 } // ????
williamr@4: */
williamr@4: #    elif defined(__DECCXX)
williamr@2: 
williamr@4: #      define _STLP_FLOAT_INF_REP { 0, 0x7f80 }
williamr@4: #      define _STLP_FLOAT_QNAN_REP { 0, 0xffc0 }
williamr@4: #      define _STLP_FLOAT_SNAN_REP { 0x5555, 0x7f85 }
williamr@2: 
williamr@4: #      define _STLP_DOUBLE_INF_REP { 0, 0, 0, 0x7ff0 }
williamr@4: #      define _STLP_DOUBLE_QNAN_REP { 0, 0, 0, 0xfff8 }
williamr@4: #      define _STLP_DOUBLE_SNAN_REP { 0x5555, 0x5555, 0x5555, 0x7ff5 }
williamr@2: 
williamr@4: #      define _STLP_LDOUBLE_INF_REP { 0, 0, 0, 0, 0, 0, 0, 0x7fff }
williamr@4: #      define _STLP_LDOUBLE_QNAN_REP { 0, 0, 0, 0, 0, 0, 0x8000, 0xffff }
williamr@4: #      define _STLP_LDOUBLE_SNAN_REP { 0x5555, 0x5555, 0x5555, 0x5555, 0x5555, 0x5555, 0x5555, 0x7fff}
williamr@4: #    else
williamr@4: #      define _STLP_FLOAT_INF_REP { 0, 0x7f80  }
williamr@4: #      define _STLP_FLOAT_QNAN_REP { 0, 0x7fC0  }
williamr@4: #      define _STLP_FLOAT_SNAN_REP { 0x0001, 0x7f80 }
williamr@4: #      define _STLP_DOUBLE_INF_REP { 0, 0, 0, 0x7ff0 }
williamr@4: #      define _STLP_DOUBLE_QNAN_REP { 0, 0, 0, 0x7ff8 }
williamr@4: #      define _STLP_DOUBLE_SNAN_REP { 0x0001, 0, 0, 0x7ff0 }
williamr@4: #      if defined (_STLP_MSVC) || defined (__ICL)
williamr@4: #        define _STLP_LDOUBLE_INF_REP { 0, 0, 0, 0x7FF0, 0 }
williamr@4: #        define _STLP_LDOUBLE_QNAN_REP { 0, 0, 0, 0xFFF8, 0 }
williamr@4: #        define _STLP_LDOUBLE_SNAN_REP { 0, 0, 0, 0xFFF8, 0 }
williamr@4: #      elif defined (__BORLANDC__)
williamr@4: #        define _STLP_LDOUBLE_INF_REP { 0, 0, 0, 0x8000, 0x7fff }
williamr@4: #        define _STLP_LDOUBLE_QNAN_REP { 0, 0, 0, 0xc000, 0x7fff }
williamr@4: #        define _STLP_LDOUBLE_SNAN_REP { 0, 0, 0, 0xa000, 0x7fff }
williamr@4: #      else
williamr@4: #        define _STLP_LDOUBLE_INF_REP { 0, 0, 0, 0x8000, 0x7fff, 0 }
williamr@4: #        define _STLP_LDOUBLE_QNAN_REP { 0, 0, 0, 0xa000, 0x7fff, 0 }
williamr@4: #        define _STLP_LDOUBLE_SNAN_REP { 0, 0, 0, 0xc000, 0x7fff, 0 }
williamr@4: #      endif
williamr@4: #    endif
williamr@2: #  else
williamr@2: /* This is an architecture we don't know how to handle. Return some
williamr@2: obviously wrong values. */
williamr@4: #    define _STLP_FLOAT_INF_REP { 0, 0 }
williamr@4: #    define _STLP_FLOAT_QNAN_REP { 0, 0 }
williamr@4: #    define _STLP_FLOAT_SNAN_REP { 0, 0 }
williamr@4: #    define _STLP_DOUBLE_INF_REP { 0, 0 }
williamr@4: #    define _STLP_DOUBLE_QNAN_REP { 0, 0 }
williamr@4: #    define _STLP_DOUBLE_SNAN_REP { 0, 0 }
williamr@4: #    define _STLP_LDOUBLE_INF_REP { 0 }
williamr@4: #    define _STLP_LDOUBLE_QNAN_REP { 0 }
williamr@4: #    define _STLP_LDOUBLE_SNAN_REP { 0 }
williamr@2: 
williamr@4: #  endif
williamr@2: 
williamr@4: #  if 0
williamr@4: /*
williamr@4: #    if defined(_STLP_BIG_ENDIAN)
williamr@4: 
williamr@4: #    elif defined (_STLP_LITTLE_ENDIAN)
williamr@4: #    else
williamr@4: 
williamr@4: //This is an architecture we don't know how to handle.  Return some
williamr@4: //obviously wrong values.
williamr@4: #      define _STLP_FLOAT_INF_REP  { 0, 0 }
williamr@4: #      define _STLP_FLOAT_QNAN_REP { 0, 0 }
williamr@4: #      define _STLP_FLOAT_SNAN_REP { 0, 0 }
williamr@4: #      define _STLP_DOUBLE_INF_REP  { 0, 0 }
williamr@4: #      define _STLP_DOUBLE_QNAN_REP { 0, 0 }
williamr@4: #      define _STLP_DOUBLE_SNAN_REP { 0, 0 }
williamr@4: #      define _STLP_LDOUBLE_INF_REP  { 0 }
williamr@4: #      define _STLP_LDOUBLE_QNAN_REP { 0 }
williamr@4: #      define _STLP_LDOUBLE_SNAN_REP { 0 }
williamr@4: #    endif
williamr@4: */
williamr@4: #  endif
williamr@4: 
williamr@4: union _F_rep {
williamr@4:   unsigned short rep[2];
williamr@4:   float val;
williamr@4: };
williamr@4: union _D_rep {
williamr@4:   unsigned short rep[4];
williamr@4:   double val;
williamr@4: };
williamr@4: 
williamr@4: #  ifndef _STLP_NO_LONG_DOUBLE
williamr@4: union _LD_rep {
williamr@4:   unsigned short rep[8];
williamr@4:   long double val;
williamr@4: };
williamr@4: #  endif
williamr@4: 
williamr@2: template <class __dummy>
williamr@4: float _STLP_CALL _LimG<__dummy>::get_F_inf() {
williamr@4:   _F_rep _F_inf = {_STLP_FLOAT_INF_REP};
williamr@4:   return _F_inf.val;
williamr@4: }
williamr@2: template <class __dummy>
williamr@4: float _STLP_CALL _LimG<__dummy>::get_F_qNaN() {
williamr@4:   _F_rep _F_qNaN = {_STLP_FLOAT_QNAN_REP};
williamr@4:   return _F_qNaN.val;
williamr@4: }
williamr@2: template <class __dummy>
williamr@4: float _STLP_CALL _LimG<__dummy>::get_F_sNaN() {
williamr@4:   _F_rep _F_sNaN = {_STLP_FLOAT_SNAN_REP};
williamr@4:   return _F_sNaN.val;
williamr@4: }
williamr@4: 
williamr@2: template <class __dummy>
williamr@4: double _STLP_CALL _LimG<__dummy>::get_D_inf() {
williamr@4:   _D_rep _D_inf = {_STLP_DOUBLE_INF_REP};
williamr@4:   return _D_inf.val;
williamr@4: }
williamr@2: template <class __dummy>
williamr@4: double _STLP_CALL _LimG<__dummy>::get_D_qNaN() {
williamr@4:   _D_rep _D_qNaN = {_STLP_DOUBLE_QNAN_REP};
williamr@4:   return _D_qNaN.val;
williamr@4: }
williamr@2: template <class __dummy>
williamr@4: double _STLP_CALL _LimG<__dummy>::get_D_sNaN() {
williamr@4:   _D_rep _D_sNaN = {_STLP_DOUBLE_SNAN_REP};
williamr@4:   return _D_sNaN.val;
williamr@4: }
williamr@4: 
williamr@4: #  if !defined (_STLP_NO_LONG_DOUBLE)
williamr@2: template <class __dummy>
williamr@4: long double _STLP_CALL _LimG<__dummy>::get_LD_inf() {
williamr@4:   _LD_rep _LD_inf = {_STLP_LDOUBLE_INF_REP};
williamr@4:   return _LD_inf.val;
williamr@4: }
williamr@2: template <class __dummy>
williamr@4: long double _STLP_CALL _LimG<__dummy>::get_LD_qNaN() {
williamr@4:   _LD_rep _LD_qNaN = {_STLP_LDOUBLE_QNAN_REP};
williamr@4:   return _LD_qNaN.val;
williamr@4: }
williamr@2: template <class __dummy>
williamr@4: long double _STLP_CALL _LimG<__dummy>::get_LD_sNaN() {
williamr@4:   _LD_rep _LD_sNaN = {_STLP_LDOUBLE_SNAN_REP};
williamr@4:   return _LD_sNaN.val;
williamr@4: }
williamr@4: #  endif /* _STLP_NO_LONG_DOUBLE */
williamr@2: 
williamr@4: #endif /* _STLP_EXPOSE_GLOBALS_IMPLEMENTATION */
williamr@2: 
williamr@4: #undef _STLP_LIMITS_MIN_TYPE
williamr@4: #undef _STLP_LIMITS_MAX_TYPE
williamr@2: 
williamr@4: #undef _STLP_FLOAT_INF_REP
williamr@4: #undef _STLP_FLOAT_QNAN_REP
williamr@4: #undef _STLP_FLOAT_SNAN_REP
williamr@4: #undef _STLP_DOUBLE_INF_REP
williamr@4: #undef _STLP_DOUBLE_QNAN_REP
williamr@4: #undef _STLP_DOUBLE_SNAN_REP
williamr@4: #undef _STLP_LDOUBLE_INF_REP
williamr@4: #undef _STLP_LDOUBLE_QNAN_REP
williamr@4: #undef _STLP_LDOUBLE_SNAN_REP
williamr@2: 
williamr@4: _STLP_MOVE_TO_STD_NAMESPACE
williamr@2: 
williamr@2: _STLP_END_NAMESPACE
williamr@2: 
williamr@2: #endif /* _STLP_LIMITS_C_INCLUDED */