Ruby  2.5.0dev(2017-10-22revision60238)
limits.c
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1 #include <limits.h>
2 #include "ruby/ruby.h"
3 #ifdef HAVE_STDINT_H
4 # include <stdint.h>
5 #endif
6 #ifdef HAVE_INTTYPES_H
7 # include <stdint.h>
8 #endif
9 #ifdef HAVE_FLOAT_H
10 # include <float.h>
11 #endif
12 
13 void
14 Init_limits(void)
15 {
16  VALUE h = rb_hash_new();
17  rb_define_const(rb_define_module("RbConfig"), "LIMITS", h);
18 
19 #ifdef HAVE_LONG_LONG
20 #ifndef ULLONG_MAX
21 #define ULLONG_MAX ((unsigned LONG_LONG)LLONG_MAX*2+1)
22 #endif
23 #define MAX2NUM(name) ULL2NUM(name ## _MAX)
24 #define MIN2NUM(name) LL2NUM(name ## _MIN)
25 #else
26 #define MAX2NUM(name) ULONG2NUM(name ## _MAX)
27 #define MIN2NUM(name) LONG2NUM(name ## _MIN)
28 #endif
29 #define DEFINE(k, v) rb_hash_aset(h, rb_str_new_cstr(#k), v)
30 
31 #ifdef FIXNUM_MAX
32  DEFINE(FIXNUM_MAX, MAX2NUM(FIXNUM));
33 #endif
34 #ifdef FIXNUM_MIN
35  DEFINE(FIXNUM_MIN, MIN2NUM(FIXNUM));
36 #endif
37 #ifdef CHAR_MAX
38  DEFINE(CHAR_MAX, MAX2NUM(CHAR));
39 #endif
40 #ifdef CHAR_MIN
41  DEFINE(CHAR_MIN, MIN2NUM(CHAR));
42 #endif
43 #ifdef SCHAR_MAX
44  DEFINE(SCHAR_MAX, MAX2NUM(SCHAR));
45 #endif
46 #ifdef SCHAR_MIN
47  DEFINE(SCHAR_MIN, MIN2NUM(SCHAR));
48 #endif
49 #ifdef UCHAR_MAX
50  DEFINE(UCHAR_MAX, MAX2NUM(UCHAR));
51 #endif
52 #ifdef UCHAR_MIN
53  DEFINE(UCHAR_MIN, MIN2NUM(UCHAR));
54 #endif
55 #ifdef WCHAR_MAX
56  DEFINE(WCHAR_MAX, MAX2NUM(WCHAR));
57 #endif
58 #ifdef WCHAR_MIN
59  DEFINE(WCHAR_MIN, MIN2NUM(WCHAR));
60 #endif
61 #ifdef SHRT_MAX
62  DEFINE(SHRT_MAX, MAX2NUM(SHRT));
63 #endif
64 #ifdef SHRT_MIN
65  DEFINE(SHRT_MIN, MIN2NUM(SHRT));
66 #endif
67 #ifdef USHRT_MAX
68  DEFINE(USHRT_MAX, MAX2NUM(USHRT));
69 #endif
70 #ifdef USHRT_MIN
71  DEFINE(USHRT_MIN, MIN2NUM(USHRT));
72 #endif
73 #ifdef INT_MAX
74  DEFINE(INT_MAX, MAX2NUM(INT));
75 #endif
76 #ifdef INT_MIN
77  DEFINE(INT_MIN, MIN2NUM(INT));
78 #endif
79 #ifdef UINT_MAX
80  DEFINE(UINT_MAX, MAX2NUM(UINT));
81 #endif
82 #ifdef UINT_MIN
83  DEFINE(UINT_MIN, MIN2NUM(UINT));
84 #endif
85 #ifdef LONG_MAX
86  DEFINE(LONG_MAX, MAX2NUM(LONG));
87 #endif
88 #ifdef LONG_MIN
89  DEFINE(LONG_MIN, MIN2NUM(LONG));
90 #endif
91 #ifdef ULONG_MAX
92  DEFINE(ULONG_MAX, MAX2NUM(ULONG));
93 #endif
94 #ifdef ULONG_MIN
95  DEFINE(ULONG_MIN, MIN2NUM(ULONG));
96 #endif
97 #ifdef LLONG_MAX
98  DEFINE(LLONG_MAX, MAX2NUM(LLONG));
99 #endif
100 #ifdef LLONG_MIN
101  DEFINE(LLONG_MIN, MIN2NUM(LLONG));
102 #endif
103 #ifdef ULLONG_MAX
104  DEFINE(ULLONG_MAX, MAX2NUM(ULLONG));
105 #endif
106 #ifdef ULLONG_MIN
107  DEFINE(ULLONG_MIN, MIN2NUM(ULLONG));
108 #endif
109 #ifdef INT8_MAX
110  DEFINE(INT8_MAX, MAX2NUM(INT8));
111 #endif
112 #ifdef INT8_MIN
113  DEFINE(INT8_MIN, MIN2NUM(INT8));
114 #endif
115 #ifdef UINT8_MAX
116  DEFINE(UINT8_MAX, MAX2NUM(UINT8));
117 #endif
118 #ifdef UINT8_MIN
119  DEFINE(UINT8_MIN, MIN2NUM(UINT8));
120 #endif
121 #ifdef INT_LEAST8_MAX
122  DEFINE(INT_LEAST8_MAX, MAX2NUM(INT_LEAST8));
123 #endif
124 #ifdef INT_LEAST8_MIN
125  DEFINE(INT_LEAST8_MIN, MIN2NUM(INT_LEAST8));
126 #endif
127 #ifdef UINT_LEAST8_MAX
128  DEFINE(UINT_LEAST8_MAX, MAX2NUM(UINT_LEAST8));
129 #endif
130 #ifdef UINT_LEAST8_MIN
131  DEFINE(UINT_LEAST8_MIN, MIN2NUM(UINT_LEAST8));
132 #endif
133 #ifdef INT_FAST8_MAX
134  DEFINE(INT_FAST8_MAX, MAX2NUM(INT_FAST8));
135 #endif
136 #ifdef INT_FAST8_MIN
137  DEFINE(INT_FAST8_MIN, MIN2NUM(INT_FAST8));
138 #endif
139 #ifdef UINT_FAST8_MAX
140  DEFINE(UINT_FAST8_MAX, MAX2NUM(UINT_FAST8));
141 #endif
142 #ifdef UINT_FAST8_MIN
143  DEFINE(UINT_FAST8_MIN, MIN2NUM(UINT_FAST8));
144 #endif
145 #ifdef INT16_MAX
146  DEFINE(INT16_MAX, MAX2NUM(INT16));
147 #endif
148 #ifdef INT16_MIN
149  DEFINE(INT16_MIN, MIN2NUM(INT16));
150 #endif
151 #ifdef UINT16_MAX
152  DEFINE(UINT16_MAX, MAX2NUM(UINT16));
153 #endif
154 #ifdef UINT16_MIN
155  DEFINE(UINT16_MIN, MIN2NUM(UINT16));
156 #endif
157 #ifdef INT_LEAST16_MAX
158  DEFINE(INT_LEAST16_MAX, MAX2NUM(INT_LEAST16));
159 #endif
160 #ifdef INT_LEAST16_MIN
161  DEFINE(INT_LEAST16_MIN, MIN2NUM(INT_LEAST16));
162 #endif
163 #ifdef UINT_LEAST16_MAX
164  DEFINE(UINT_LEAST16_MAX, MAX2NUM(UINT_LEAST16));
165 #endif
166 #ifdef UINT_LEAST16_MIN
167  DEFINE(UINT_LEAST16_MIN, MIN2NUM(UINT_LEAST16));
168 #endif
169 #ifdef INT_FAST16_MAX
170  DEFINE(INT_FAST16_MAX, MAX2NUM(INT_FAST16));
171 #endif
172 #ifdef INT_FAST16_MIN
173  DEFINE(INT_FAST16_MIN, MIN2NUM(INT_FAST16));
174 #endif
175 #ifdef UINT_FAST16_MAX
176  DEFINE(UINT_FAST16_MAX, MAX2NUM(UINT_FAST16));
177 #endif
178 #ifdef UINT_FAST16_MIN
179  DEFINE(UINT_FAST16_MIN, MIN2NUM(UINT_FAST16));
180 #endif
181 #ifdef INT32_MAX
182  DEFINE(INT32_MAX, MAX2NUM(INT32));
183 #endif
184 #ifdef INT32_MIN
185  DEFINE(INT32_MIN, MIN2NUM(INT32));
186 #endif
187 #ifdef UINT32_MAX
188  DEFINE(UINT32_MAX, MAX2NUM(UINT32));
189 #endif
190 #ifdef UINT32_MIN
191  DEFINE(UINT32_MIN, MIN2NUM(UINT32));
192 #endif
193 #ifdef INT_LEAST32_MAX
194  DEFINE(INT_LEAST32_MAX, MAX2NUM(INT_LEAST32));
195 #endif
196 #ifdef INT_LEAST32_MIN
197  DEFINE(INT_LEAST32_MIN, MIN2NUM(INT_LEAST32));
198 #endif
199 #ifdef UINT_LEAST32_MAX
200  DEFINE(UINT_LEAST32_MAX, MAX2NUM(UINT_LEAST32));
201 #endif
202 #ifdef UINT_LEAST32_MIN
203  DEFINE(UINT_LEAST32_MIN, MIN2NUM(UINT_LEAST32));
204 #endif
205 #ifdef INT_FAST32_MAX
206  DEFINE(INT_FAST32_MAX, MAX2NUM(INT_FAST32));
207 #endif
208 #ifdef INT_FAST32_MIN
209  DEFINE(INT_FAST32_MIN, MIN2NUM(INT_FAST32));
210 #endif
211 #ifdef UINT_FAST32_MAX
212  DEFINE(UINT_FAST32_MAX, MAX2NUM(UINT_FAST32));
213 #endif
214 #ifdef UINT_FAST32_MIN
215  DEFINE(UINT_FAST32_MIN, MIN2NUM(UINT_FAST32));
216 #endif
217 #ifdef INT64_MAX
218  DEFINE(INT64_MAX, MAX2NUM(INT64));
219 #endif
220 #ifdef INT64_MIN
221  DEFINE(INT64_MIN, MIN2NUM(INT64));
222 #endif
223 #ifdef UINT64_MAX
224  DEFINE(UINT64_MAX, MAX2NUM(UINT64));
225 #endif
226 #ifdef UINT64_MIN
227  DEFINE(UINT64_MIN, MIN2NUM(UINT64));
228 #endif
229 #ifdef INT_LEAST64_MAX
230  DEFINE(INT_LEAST64_MAX, MAX2NUM(INT_LEAST64));
231 #endif
232 #ifdef INT_LEAST64_MIN
233  DEFINE(INT_LEAST64_MIN, MIN2NUM(INT_LEAST64));
234 #endif
235 #ifdef UINT_LEAST64_MAX
236  DEFINE(UINT_LEAST64_MAX, MAX2NUM(UINT_LEAST64));
237 #endif
238 #ifdef UINT_LEAST64_MIN
239  DEFINE(UINT_LEAST64_MIN, MIN2NUM(UINT_LEAST64));
240 #endif
241 #ifdef INT_FAST64_MAX
242  DEFINE(INT_FAST64_MAX, MAX2NUM(INT_FAST64));
243 #endif
244 #ifdef INT_FAST64_MIN
245  DEFINE(INT_FAST64_MIN, MIN2NUM(INT_FAST64));
246 #endif
247 #ifdef UINT_FAST64_MAX
248  DEFINE(UINT_FAST64_MAX, MAX2NUM(UINT_FAST64));
249 #endif
250 #ifdef UINT_FAST64_MIN
251  DEFINE(UINT_FAST64_MIN, MIN2NUM(UINT_FAST64));
252 #endif
253 #ifdef INT128_MAX
254  DEFINE(INT128_MAX, MAX2NUM(INT128));
255 #endif
256 #ifdef INT128_MIN
257  DEFINE(INT128_MIN, MIN2NUM(INT128));
258 #endif
259 #ifdef UINT128_MAX
260  DEFINE(UINT128_MAX, MAX2NUM(UINT128));
261 #endif
262 #ifdef UINT128_MIN
263  DEFINE(UINT128_MIN, MIN2NUM(UINT128));
264 #endif
265 #ifdef INTMAX_MAX
266  DEFINE(INTMAX_MAX, MAX2NUM(INTMAX));
267 #endif
268 #ifdef INTMAX_MIN
269  DEFINE(INTMAX_MIN, MIN2NUM(INTMAX));
270 #endif
271 #ifdef UINTMAX_MAX
272  DEFINE(UINTMAX_MAX, MAX2NUM(UINTMAX));
273 #endif
274 #ifdef UINTMAX_MIN
275  DEFINE(UINTMAX_MIN, MIN2NUM(UINTMAX));
276 #endif
277 #ifdef INTPTR_MAX
278  DEFINE(INTPTR_MAX, MAX2NUM(INTPTR));
279 #endif
280 #ifdef INTPTR_MIN
281  DEFINE(INTPTR_MIN, MIN2NUM(INTPTR));
282 #endif
283 #ifdef UINTPTR_MAX
284  DEFINE(UINTPTR_MAX, MAX2NUM(UINTPTR));
285 #endif
286 #ifdef UINTPTR_MIN
287  DEFINE(UINTPTR_MIN, MIN2NUM(UINTPTR));
288 #endif
289 #ifdef SSZIE_MAX
290  DEFINE(SSZIE_MAX, MAX2NUM(SSZIE));
291 #endif
292 #ifdef SSZIE_MIN
293  DEFINE(SSZIE_MIN, MIN2NUM(SSZIE));
294 #endif
295 #ifdef SIZE_MAX
296  DEFINE(SIZE_MAX, MAX2NUM(SIZE));
297 #endif
298 #ifdef SIZE_MIN
299  DEFINE(SIZE_MIN, MIN2NUM(SIZE));
300 #endif
301 #ifdef PTRDIFF_MAX
302  DEFINE(PTRDIFF_MAX, MAX2NUM(PTRDIFF));
303 #endif
304 #ifdef PTRDIFF_MIN
305  DEFINE(PTRDIFF_MIN, MIN2NUM(PTRDIFF));
306 #endif
307 
308 #ifdef FLT_RADIX
309  DEFINE(FLT_RADIX, LONG2NUM(FLT_RADIX));
310 #endif
311 #ifdef FLT_ROUNDS
312  DEFINE(FLT_ROUNDS, LONG2NUM(FLT_ROUNDS));
313 #endif
314 #ifdef FLT_EVAL_METHOD
315  DEFINE(FLT_EVAL_METHOD, LONG2NUM(FLT_EVAL_METHOD));
316 #endif
317 #ifdef FLT_MANT_DIG
318  DEFINE(FLT_MANT_DIG, LONG2NUM(FLT_MANT_DIG));
319 #endif
320 #ifdef DBL_MANT_DIG
321  DEFINE(DBL_MANT_DIG, LONG2NUM(DBL_MANT_DIG));
322 #endif
323 #ifdef LDBL_MANT_DIG
324  DEFINE(LDBL_MANT_DIG, LONG2NUM(LDBL_MANT_DIG));
325 #endif
326 #ifdef FLT_DIG
327  DEFINE(FLT_DIG, LONG2NUM(FLT_DIG));
328 #endif
329 #ifdef DBL_DIG
330  DEFINE(DBL_DIG, LONG2NUM(DBL_DIG));
331 #endif
332 #ifdef LDBL_DIG
333  DEFINE(LDBL_DIG, LONG2NUM(LDBL_DIG));
334 #endif
335 #ifdef FLT_MIN_EXP
336  DEFINE(FLT_MIN_EXP, LONG2NUM(FLT_MIN_EXP));
337 #endif
338 #ifdef DBL_MIN_EXP
339  DEFINE(DBL_MIN_EXP, LONG2NUM(DBL_MIN_EXP));
340 #endif
341 #ifdef LDBL_MIN_EXP
342  DEFINE(LDBL_MIN_EXP, LONG2NUM(LDBL_MIN_EXP));
343 #endif
344 #ifdef FLT_MIN_10_EXP
345  DEFINE(FLT_MIN_10_EXP, LONG2NUM(FLT_MIN_10_EXP));
346 #endif
347 #ifdef DBL_MIN_10_EXP
348  DEFINE(DBL_MIN_10_EXP, LONG2NUM(DBL_MIN_10_EXP));
349 #endif
350 #ifdef LDBL_MIN_10_EXP
351  DEFINE(LDBL_MIN_10_EXP, LONG2NUM(LDBL_MIN_10_EXP));
352 #endif
353 #ifdef FLT_MAX_EXP
354  DEFINE(FLT_MAX_EXP, LONG2NUM(FLT_MAX_EXP));
355 #endif
356 #ifdef DBL_MAX_EXP
357  DEFINE(DBL_MAX_EXP, LONG2NUM(DBL_MAX_EXP));
358 #endif
359 #ifdef LDBL_MAX_EXP
360  DEFINE(LDBL_MAX_EXP, LONG2NUM(LDBL_MAX_EXP));
361 #endif
362 #ifdef FLT_MAX_10_EXP
363  DEFINE(FLT_MAX_10_EXP, LONG2NUM(FLT_MAX_10_EXP));
364 #endif
365 #ifdef DBL_MAX_10_EXP
366  DEFINE(DBL_MAX_10_EXP, LONG2NUM(DBL_MAX_10_EXP));
367 #endif
368 #ifdef LDBL_MAX_10_EXP
369  DEFINE(LDBL_MAX_10_EXP, LONG2NUM(LDBL_MAX_10_EXP));
370 #endif
371 #ifdef FLT_DECIMAL_DIG
372  DEFINE(FLT_DECIMAL_DIG, LONG2NUM(FLT_DECIMAL_DIG));
373 #endif
374 #ifdef DBL_DECIMAL_DIG
375  DEFINE(DBL_DECIMAL_DIG, LONG2NUM(DBL_DECIMAL_DIG));
376 #endif
377 #ifdef LDBL_DECIMAL_DIG
378  DEFINE(LDBL_DECIMAL_DIG, LONG2NUM(LDBL_DECIMAL_DIG));
379 #endif
380 #ifdef DECIMAL_DIG
381  DEFINE(DECIMAL_DIG, LONG2NUM(DECIMAL_DIG));
382 #endif
383 #ifdef FLT_HAS_SUBNORM
384  DEFINE(FLT_HAS_SUBNORM, LONG2NUM(FLT_HAS_SUBNORM));
385 #endif
386 #ifdef DBL_HAS_SUBNORM
387  DEFINE(DBL_HAS_SUBNORM, LONG2NUM(DBL_HAS_SUBNORM));
388 #endif
389 #ifdef LDBL_HAS_SUBNORM
390  DEFINE(LDBL_HAS_SUBNORM, LONG2NUM(LDBL_HAS_SUBNORM));
391 #endif
392 
393 #ifdef FLT_MAX
394  DEFINE(FLT_MAX, DBL2NUM(FLT_MAX));
395 #endif
396 #ifdef DBL_MAX
397  DEFINE(DBL_MAX, DBL2NUM(DBL_MAX));
398 #endif
399 #ifdef FLT_EPSILON
400  DEFINE(FLT_EPSILON, DBL2NUM(FLT_EPSILON));
401 #endif
402 #ifdef DBL_EPSILON
403  DEFINE(DBL_EPSILON, DBL2NUM(DBL_EPSILON));
404 #endif
405 #ifdef FLT_MIN
406  DEFINE(FLT_MIN, DBL2NUM(FLT_MIN));
407 #endif
408 #ifdef DBL_MIN
409  DEFINE(DBL_MIN, DBL2NUM(DBL_MIN));
410 #endif
411 #ifdef FLT_TRUE_MIN
412  DEFINE(FLT_TRUE_MIN, DBL2NUM(FLT_TRUE_MIN));
413 #endif
414 #ifdef DBL_TRUE_MIN
415  DEFINE(DBL_TRUE_MIN, DBL2NUM(DBL_TRUE_MIN));
416 #endif
417 
418 #undef DEFINE
419 #undef MIN2NUM
420 #undef MAX2NUM
421  OBJ_FREEZE(h);
422 }
FLT_RADIX
#define FLT_RADIX
Definition: numeric.c:30
MAX2NUM
#define MAX2NUM(name)
SIZE_MIN
#define SIZE_MIN
Definition: ruby.h:277
DBL_DIG
#define DBL_DIG
Definition: numeric.c:54
FIXNUM_MAX
#define FIXNUM_MAX
Definition: ruby.h:228
OBJ_FREEZE
#define OBJ_FREEZE(x)
Definition: ruby.h:1306
FIXNUM_MIN
#define FIXNUM_MIN
Definition: ruby.h:229
LONG_MIN
#define LONG_MIN
Definition: ruby.h:193
INTPTR_MAX
#define INTPTR_MAX
Definition: win32.h:98
DBL_MAX_10_EXP
#define DBL_MAX_10_EXP
Definition: numeric.c:51
INTPTR_MIN
#define INTPTR_MIN
Definition: win32.h:100
rb_define_const
void rb_define_const(VALUE, const char *, VALUE)
Definition: variable.c:2691
UINTPTR_MAX
#define UINTPTR_MAX
Definition: win32.h:114
DEFINE
#define DEFINE(k, v)
LONG_MAX
#define LONG_MAX
Definition: ruby.h:189
DBL_MIN
#define DBL_MIN
Definition: numeric.c:36
rb_hash_new
VALUE rb_hash_new(void)
Definition: hash.c:424
VALUE
unsigned long VALUE
Definition: ruby.h:85
DBL_MANT_DIG
#define DBL_MANT_DIG
Definition: acosh.c:19
DBL_MAX_EXP
#define DBL_MAX_EXP
Definition: numeric.c:45
LONG2NUM
#define LONG2NUM(x)
Definition: ruby.h:1573
SIZE_MAX
#define SIZE_MAX
Definition: ruby.h:276
DBL_MIN_10_EXP
#define DBL_MIN_10_EXP
Definition: numeric.c:48
FLT_ROUNDS
#define FLT_ROUNDS
Definition: numeric.c:33
DBL_MAX
#define DBL_MAX
Definition: numeric.c:39
MIN2NUM
#define MIN2NUM(name)
DBL_MIN_EXP
#define DBL_MIN_EXP
Definition: numeric.c:42
Init_limits
void Init_limits(void)
Definition: limits.c:14
DBL_EPSILON
#define DBL_EPSILON
Definition: numeric.c:60
rb_define_module
VALUE rb_define_module(const char *name)
Definition: class.c:768
DBL2NUM
#define DBL2NUM(dbl)
Definition: ruby.h:934
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