2 * Copyright (c) 1998,1999
3 * Silicon Graphics Computer Systems, Inc.
8 * This material is provided "as is", with absolutely no warranty expressed
9 * or implied. Any use is at your own risk.
11 * Permission to use or copy this software for any purpose is hereby granted
12 * without fee, provided the above notices are retained on all copies.
13 * Permission to modify the code and to distribute modified code is granted,
14 * provided the above notices are retained, and a notice that the code was
15 * modified is included with the above copyright notice.
19 # if !defined (_STLP_LIMITS_C)
20 # define _STLP_LIMITS_C
22 #ifndef _STLP_INTERNAL_LIMITS_H
23 # include <stl/_limits.h>
26 //==========================================================
27 // numeric_limits static members
28 //==========================================================
32 # if ! defined ( _STLP_STATIC_CONST_INIT_BUG)
34 # define __declare_numeric_base_member(__type, __mem, _Init) \
35 template <class __number> \
36 const __type _Numeric_limits_base<__number>:: __mem
38 __declare_numeric_base_member(bool, is_specialized, false);
39 __declare_numeric_base_member(int, digits, 0);
40 __declare_numeric_base_member(int, digits10, 0);
41 __declare_numeric_base_member(bool, is_signed, false);
42 __declare_numeric_base_member(bool, is_integer, false);
43 __declare_numeric_base_member(bool, is_exact, false);
44 __declare_numeric_base_member(int, radix, 0);
45 __declare_numeric_base_member(int, min_exponent, 0);
46 __declare_numeric_base_member(int, max_exponent, 0);
47 __declare_numeric_base_member(int, min_exponent10, 0);
48 __declare_numeric_base_member(int, max_exponent10, 0);
49 __declare_numeric_base_member(bool, has_infinity, false);
50 __declare_numeric_base_member(bool, has_quiet_NaN, false);
51 __declare_numeric_base_member(bool, has_signaling_NaN, false);
52 __declare_numeric_base_member(float_denorm_style, has_denorm, denorm_absent);
53 __declare_numeric_base_member(bool, has_denorm_loss, false);
54 __declare_numeric_base_member(bool, is_iec559, false);
55 __declare_numeric_base_member(bool, is_bounded, false);
56 __declare_numeric_base_member(bool, is_modulo, false);
57 __declare_numeric_base_member(bool, traps, false);
58 __declare_numeric_base_member(bool, tinyness_before, false);
59 __declare_numeric_base_member(float_round_style, round_style, round_toward_zero);
61 # undef __declare_numeric_base_member
63 # define __declare_integer_limits_member(__type, __mem, _Init) \
64 template <class _Int, _STLP_LIMITS_MIN_TYPE __imin, _STLP_LIMITS_MAX_TYPE __imax, int __idigits, bool __ismod> \
65 const __type _Integer_limits<_Int, __imin, __imax, __idigits, __ismod>:: __mem
67 __declare_integer_limits_member(bool, is_specialized, true);
68 __declare_integer_limits_member(int, digits, (__idigits < 0) ? \
69 ((int)((sizeof(_Int) * (CHAR_BIT))) - ((__imin == 0) ? 0 : 1)) \
71 __declare_integer_limits_member(int, digits10, (int)(301UL * digits) /1000);
72 __declare_integer_limits_member(bool, is_signed, __imin != 0);
73 __declare_integer_limits_member(bool, is_integer, true);
74 __declare_integer_limits_member(bool, is_exact, true);
75 __declare_integer_limits_member(int, radix, 2);
76 __declare_integer_limits_member(bool, is_bounded, true);
77 __declare_integer_limits_member(bool, is_modulo, true);
79 # define __declare_float_limits_member(__type, __mem, _Init) \
80 template <class __number, \
81 int __Digits, int __Digits10, \
82 int __MinExp, int __MaxExp, \
83 int __MinExp10, int __MaxExp10, \
85 float_round_style __RoundStyle> \
86 const __type _Floating_limits< __number, __Digits, __Digits10, \
87 __MinExp, __MaxExp, __MinExp10, __MaxExp10, \
88 __IsIEC559, __RoundStyle>::\
91 __declare_float_limits_member(bool, is_specialized, true);
92 __declare_float_limits_member(int, digits, __Digits);
93 __declare_float_limits_member(int, digits10, __Digits10);
94 __declare_float_limits_member(bool, is_signed, true);
95 __declare_float_limits_member(int, radix, FLT_RADIX);
96 __declare_float_limits_member(int, min_exponent, __MinExp);
97 __declare_float_limits_member(int, max_exponent, __MaxExp);
98 __declare_float_limits_member(int, min_exponent10, __MinExp10);
99 __declare_float_limits_member(int, max_exponent10, __MaxExp10);
100 __declare_float_limits_member(bool, has_infinity, true);
101 __declare_float_limits_member(bool, has_quiet_NaN, true);
102 __declare_float_limits_member(bool, has_signaling_NaN, true);
103 __declare_float_limits_member(float_denorm_style, has_denorm, denorm_indeterminate);
104 __declare_float_limits_member(bool, has_denorm_loss, false);
105 __declare_float_limits_member(bool, is_iec559, __IsIEC559);
106 __declare_float_limits_member(bool, is_bounded, true);
107 __declare_float_limits_member(bool, traps, true);
108 __declare_float_limits_member(bool, tinyness_before, false);
109 __declare_float_limits_member(float_round_style, round_style, __RoundStyle);
111 # endif /* _STLP_STATIC_CONST_INIT_BUG */
114 # ifdef _STLP_EXPOSE_GLOBALS_IMPLEMENTATION
116 # if defined(_STLP_BIG_ENDIAN)
117 # if defined(__OS400__)
118 # define _STLP_FLOAT_INF_REP { 0x7f80, 0 }
119 # define _STLP_FLOAT_QNAN_REP { 0xffc0, 0 }
120 # define _STLP_FLOAT_SNAN_REP { 0xff80, 0 }
121 # define _STLP_DOUBLE_INF_REP { 0x7ff0, 0, 0, 0 }
122 # define _STLP_DOUBLE_QNAN_REP { 0xfff8, 0, 0, 0 }
123 # define _STLP_DOUBLE_SNAN_REP { 0xfff0, 0, 0, 0 }
124 # define _STLP_LDOUBLE_INF_REP { 0x7ff0, 0, 0, 0, 0, 0, 0, 0 }
125 # define _STLP_LDOUBLE_QNAN_REP { 0xfff8, 0, 0, 0, 0, 0, 0, 0 }
126 # define _STLP_LDOUBLE_SNAN_REP { 0xfff0, 0, 0, 0, 0, 0, 0, 0 }
128 # define _STLP_FLOAT_INF_REP { 0x7f80, 0 }
129 # define _STLP_FLOAT_SNAN_REP { 0x7f81, 0 }
130 # define _STLP_FLOAT_QNAN_REP { 0x7fc1, 0 }
131 # define _STLP_DOUBLE_INF_REP { 0x7ff0, 0, 0, 0 }
132 # define _STLP_DOUBLE_QNAN_REP { 0x7ff1, 0, 0, 0 }
133 # define _STLP_DOUBLE_SNAN_REP { 0x7ff9, 0, 0, 0 }
134 # define _STLP_LDOUBLE_INF_REP { 0x7ff0, 0, 0, 0, 0, 0, 0, 0 }
135 # define _STLP_LDOUBLE_SNAN_REP { 0x7ff1, 0, 0, 0, 0, 0, 0, 0 }
136 # define _STLP_LDOUBLE_QNAN_REP { 0x7ff9, 0, 0, 0, 0, 0, 0, 0 }
139 # elif defined (_STLP_LITTLE_ENDIAN)
141 # if 0 /* defined(_STLP_MSVC) || defined(__linux__) */
142 // some IA-32 platform ??
143 # define _STLP_FLOAT_INF_REP { 0, 0x7f80 }
144 # define _STLP_FLOAT_QNAN_REP { 0, 0xffc0 }
145 # define _STLP_FLOAT_SNAN_REP { 0, 0xff80 }
147 # define _STLP_DOUBLE_INF_REP { 0, 0, 0, 0x7ff0 }
148 # define _STLP_DOUBLE_QNAN_REP { 0, 0, 0, 0xfff8 }
149 # define _STLP_DOUBLE_SNAN_REP { 0, 0, 0, 0xfff0 }
150 # define _STLP_LDOUBLE_INF_REP { 0, 0, 0, 0x7FF0, 0 } // ????
151 # define _STLP_LDOUBLE_QNAN_REP { 0, 0, 0, 0xFFF8, 0 } // ????
152 # define _STLP_LDOUBLE_SNAN_REP { 0, 0, 0, 0xFFF0, 0 } // ????
154 # elif defined(__DECCXX)
156 # define _STLP_FLOAT_INF_REP { 0, 0x7f80 }
157 # define _STLP_FLOAT_QNAN_REP { 0, 0xffc0 }
158 # define _STLP_FLOAT_SNAN_REP { 0x5555, 0x7f85 }
160 # define _STLP_DOUBLE_INF_REP { 0, 0, 0, 0x7ff0 }
161 # define _STLP_DOUBLE_QNAN_REP { 0, 0, 0, 0xfff8 }
162 # define _STLP_DOUBLE_SNAN_REP { 0x5555, 0x5555, 0x5555, 0x7ff5 }
164 # define _STLP_LDOUBLE_INF_REP { 0, 0, 0, 0, 0, 0, 0, 0x7fff }
165 # define _STLP_LDOUBLE_QNAN_REP { 0, 0, 0, 0, 0, 0, 0x8000, 0xffff }
166 # define _STLP_LDOUBLE_SNAN_REP { 0x5555, 0x5555, 0x5555, 0x5555, 0x5555, 0x5555, 0x5555, 0x7fff}
168 # define _STLP_FLOAT_INF_REP { 0, 0x7f80 }
169 # define _STLP_FLOAT_QNAN_REP { 0, 0x7fa0 }
170 # define _STLP_FLOAT_SNAN_REP { 0, 0x7fc0 }
171 # define _STLP_DOUBLE_INF_REP { 0, 0, 0, 0x7ff0 }
172 # define _STLP_DOUBLE_QNAN_REP { 0, 0, 0, 0x7ff4 }
173 # define _STLP_DOUBLE_SNAN_REP { 0, 0, 0, 0x7ff8 }
174 # if defined (_STLP_MSVC) || defined (__ICL) || defined (__BORLANDC__)
175 # define _STLP_LDOUBLE_INF_REP { 0, 0, 0, 0x7FF0, 0 } // ????
176 # define _STLP_LDOUBLE_QNAN_REP { 0, 0, 0, 0xFFF8, 0 } // ????
177 # define _STLP_LDOUBLE_SNAN_REP { 0, 0, 0, 0xFFF8, 0 }
179 # define _STLP_LDOUBLE_INF_REP { 0, 0, 0, 0x8000, 0x7fff }
180 # define _STLP_LDOUBLE_QNAN_REP { 0, 0, 0, 0xa000, 0x7fff }
181 # define _STLP_LDOUBLE_SNAN_REP { 0, 0, 0, 0xc000, 0x7fff }
185 /* This is an architecture we don't know how to handle. Return some
186 obviously wrong values. */
187 # define _STLP_FLOAT_INF_REP { 0, 0 }
188 # define _STLP_FLOAT_QNAN_REP { 0, 0 }
189 # define _STLP_FLOAT_SNAN_REP { 0, 0 }
190 # define _STLP_DOUBLE_INF_REP { 0, 0 }
191 # define _STLP_DOUBLE_QNAN_REP { 0, 0 }
192 # define _STLP_DOUBLE_SNAN_REP { 0, 0 }
193 # define _STLP_LDOUBLE_INF_REP { 0 }
194 # define _STLP_LDOUBLE_QNAN_REP { 0 }
195 # define _STLP_LDOUBLE_SNAN_REP { 0 }
199 #if ( _STLP_STATIC_TEMPLATE_DATA > 0 )
200 # ifndef _STLP_NO_LONG_DOUBLE
201 template <class __dummy>
202 const _L_rep _LimG<__dummy>::_L_inf = {_STLP_LDOUBLE_INF_REP};
203 template <class __dummy>
204 const _L_rep _LimG<__dummy>::_L_qNaN = {_STLP_LDOUBLE_QNAN_REP};
205 template <class __dummy>
206 const _L_rep _LimG<__dummy>::_L_sNaN = {_STLP_LDOUBLE_SNAN_REP};
208 template <class __dummy>
209 const _D_rep _LimG<__dummy>::_D_inf = {_STLP_DOUBLE_INF_REP};
210 template <class __dummy>
211 const _D_rep _LimG<__dummy>::_D_qNaN = {_STLP_DOUBLE_QNAN_REP};
212 template <class __dummy>
213 const _D_rep _LimG<__dummy>::_D_sNaN = {_STLP_DOUBLE_SNAN_REP};
214 template <class __dummy>
215 const _F_rep _LimG<__dummy>::_F_inf = {_STLP_FLOAT_INF_REP};
216 template <class __dummy>
217 const _F_rep _LimG<__dummy>::_F_qNaN = {_STLP_FLOAT_QNAN_REP};
218 template <class __dummy>
219 const _F_rep _LimG<__dummy>::_F_sNaN = {_STLP_FLOAT_SNAN_REP};
223 __DECLARE_INSTANCE( const _F_rep,
224 _LimG<bool>::_F_inf, = _STLP_FLOAT_INF_REP);
225 __DECLARE_INSTANCE( const _F_rep,
226 _LimG<bool>::_F_qNaN, = _STLP_FLOAT_QNAN_REP);
227 __DECLARE_INSTANCE( const _F_rep,
228 _LimG<bool>::_F_sNaN, = _STLP_FLOAT_SNAN_REP);
229 __DECLARE_INSTANCE( const _D_rep,
230 _LimG<bool>::_D_inf, = _STLP_DOUBLE_INF_REP);
231 __DECLARE_INSTANCE( const _D_rep,
232 _LimG<bool>::_D_qNaN, = _STLP_DOUBLE_QNAN_REP);
233 __DECLARE_INSTANCE( const _D_rep,
234 _LimG<bool>::_D_sNaN, = _STLP_DOUBLE_SNAN_REP);
235 # ifndef _STLP_NO_LONG_DOUBLE
236 __DECLARE_INSTANCE( const _L_rep,
237 _LimG<bool>::_L_inf, = _STLP_LDOUBLE_INF_REP);
238 __DECLARE_INSTANCE( const _L_rep,
239 _LimG<bool>::_L_qNaN, = _STLP_LDOUBLE_QNAN_REP);
240 __DECLARE_INSTANCE( const _L_rep,
241 _LimG<bool>::_L_sNaN, = _STLP_LDOUBLE_SNAN_REP);
244 #endif /* STATIC_DATA */
246 # endif /* _STLP_EXPOSE_GLOBALS_IMPLEMENTATION */
248 # undef __declare_integer_limits_member
249 # undef __declare_float_limits_member
250 # undef __HACK_ILIMITS
251 # undef __HACK_NOTHING
252 # undef __declare_int_members
253 # undef __declare_float_members
254 # undef _STLP_LIMITS_MIN_TYPE
255 # undef _STLP_LIMITS_MAX_TYPE
257 # undef _STLP_FLOAT_INF_REP
258 # undef _STLP_FLOAT_QNAN_REP
259 # undef _STLP_FLOAT_SNAN_REP
260 # undef _STLP_DOUBLE_INF_REP
261 # undef _STLP_DOUBLE_QNAN_REP
262 # undef _STLP_DOUBLE_SNAN_REP
263 # undef _STLP_LDOUBLE_INF_REP
264 # undef _STLP_LDOUBLE_QNAN_REP
265 # undef _STLP_LDOUBLE_SNAN_REP
270 #endif /* _STLP_LIMITS_C_INCLUDED */