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tdf#154546 skip dispatch when presenter controller is not set
[LibreOffice.git] / sal / qa / rtl / math / test-rtl-math.cxx
blob57ac2a2616f0e2e14f2193daaf3427089a4de305
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20 #include <sal/types.h>
21 #include <cppunit/TestAssert.h>
22 #include <cppunit/TestFixture.h>
23 #include <cppunit/extensions/HelperMacros.h>
24 #include <cppunit/plugin/TestPlugIn.h>
25 #include <rtl/math.hxx>
26 #include <rtl/ustring.h>
27 #include <rtl/ustring.hxx>
28 #include <limits>
29
30 template<> inline std::string CPPUNIT_NS::assertion_traits<rtl_math_ConversionStatus>::toString(
31 const rtl_math_ConversionStatus& x )
32 {
33 OStringStream ost;
34 ost << static_cast<unsigned int>(x);
35 return ost.str();
36 }
37
38 namespace {
39
40 class Test: public CppUnit::TestFixture {
41 public:
42 void test_stringToDouble_good() {
43 rtl_math_ConversionStatus status;
44 sal_Int32 end;
45 double res = rtl::math::stringToDouble(
46 " +1.E01foo",
47 '.', ',', &status, &end);
48 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
49 CPPUNIT_ASSERT_EQUAL(RTL_CONSTASCII_LENGTH(" +1.E01"), end);
50 CPPUNIT_ASSERT_EQUAL(10.0, res);
51
52 res = rtl::math::stringToDouble(
53 "NaN",
54 '.', ',', &status, &end);
55 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
56 CPPUNIT_ASSERT_EQUAL(sal_Int32(3), end);
57 CPPUNIT_ASSERT(std::isnan(res));
58
59 res = rtl::math::stringToDouble(
60 "NaN1.23",
61 '.', ',', &status, &end);
62 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
63 CPPUNIT_ASSERT_EQUAL(sal_Int32(3), end);
64 CPPUNIT_ASSERT(std::isnan(res));
65
66 res = rtl::math::stringToDouble(
67 "+NaN",
68 '.', ',', &status, &end);
69 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
70 CPPUNIT_ASSERT_EQUAL(sal_Int32(0), end);
71 CPPUNIT_ASSERT_EQUAL(0.0, res);
72
73 res = rtl::math::stringToDouble(
74 "-NaN",
75 '.', ',', &status, &end);
76 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
77 CPPUNIT_ASSERT_EQUAL(sal_Int32(0), end);
78 CPPUNIT_ASSERT_EQUAL(0.0, res);
79
80 res = rtl::math::stringToDouble(
81 "+1.#NAN",
82 '.', ',', &status, &end);
83 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
84 CPPUNIT_ASSERT_EQUAL(sal_Int32(7), end);
85 CPPUNIT_ASSERT(std::isnan(res));
86 CPPUNIT_ASSERT(!std::signbit(res));
87
88 res = rtl::math::stringToDouble(
89 "-1.#NAN",
90 '.', ',', &status, &end);
91 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
92 CPPUNIT_ASSERT_EQUAL(sal_Int32(7), end);
93 CPPUNIT_ASSERT(std::isnan(res));
94 CPPUNIT_ASSERT(std::signbit(res));
95
96 res = rtl::math::stringToDouble(
97 "INF",
98 '.', ',', &status, &end);
99 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_OutOfRange, status);
100 CPPUNIT_ASSERT_EQUAL(sal_Int32(3), end);
101 CPPUNIT_ASSERT(std::isinf(res));
102
103 res = rtl::math::stringToDouble(
104 "INF1.23",
105 '.', ',', &status, &end);
106 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_OutOfRange, status);
107 CPPUNIT_ASSERT_EQUAL(sal_Int32(3), end);
108 CPPUNIT_ASSERT(std::isinf(res));
109
110 res = rtl::math::stringToDouble(
111 ".5",
112 '.', ',', &status, &end);
113 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
114 CPPUNIT_ASSERT_EQUAL(sal_Int32(2), end);
115 CPPUNIT_ASSERT_EQUAL(0.5, res);
116
117 res = rtl::math::stringToDouble(
118 "5.",
119 '.', ',', &status, &end);
120 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
121 CPPUNIT_ASSERT_EQUAL(sal_Int32(2), end);
122 CPPUNIT_ASSERT_EQUAL(5.0, res);
123
124 // Leading 0 and group separator.
125 res = rtl::math::stringToDouble(
126 "0,123",
127 '.', ',', &status, &end);
128 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
129 CPPUNIT_ASSERT_EQUAL(sal_Int32(5), end);
130 CPPUNIT_ASSERT_EQUAL(123.0, res);
131
132 // Leading 0 and two consecutive group separators are none.
133 res = rtl::math::stringToDouble(
134 "0,,1",
135 '.', ',', &status, &end);
136 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
137 CPPUNIT_ASSERT_EQUAL(sal_Int32(1), end);
138 CPPUNIT_ASSERT_EQUAL(0.0, res);
139
140 // Leading 0 and group separator at end is none.
141 res = rtl::math::stringToDouble(
142 "0,",
143 '.', ',', &status, &end);
144 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
145 CPPUNIT_ASSERT_EQUAL(sal_Int32(1), end);
146 CPPUNIT_ASSERT_EQUAL(0.0, res);
147
148 // Leading 0 and group separator before non-digit is none.
149 res = rtl::math::stringToDouble(
150 "0,x",
151 '.', ',', &status, &end);
152 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
153 CPPUNIT_ASSERT_EQUAL(sal_Int32(1), end);
154 CPPUNIT_ASSERT_EQUAL(0.0, res);
155
156 // Trailing group separator is none.
157 res = rtl::math::stringToDouble(
158 "1,234,",
159 '.', ',', &status, &end);
160 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
161 CPPUNIT_ASSERT_EQUAL(sal_Int32(5), end);
162 CPPUNIT_ASSERT_EQUAL(1234.0, res);
163
164 // Group separator followed by non-digit is none.
165 res = rtl::math::stringToDouble(
166 "1,234,x",
167 '.', ',', &status, &end);
168 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
169 CPPUNIT_ASSERT_EQUAL(sal_Int32(5), end);
170 CPPUNIT_ASSERT_EQUAL(1234.0, res);
171
172 // Check that the value is the nearest double-precision representation of the decimal 0.0042
173 // (it was 0.0042000000000000006 instead of 0.0041999999999999997)
174 res = rtl::math::stringToDouble("0,0042", ',', ' ', &status, &end);
175 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
176 CPPUNIT_ASSERT_EQUAL(0.0042, res);
177
178 // "- 1" is nothing
179 res = rtl::math::stringToDouble("- 1", '.', ',', &status, &end);
180 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
181 CPPUNIT_ASSERT_EQUAL(sal_Int32(0), end);
182 CPPUNIT_ASSERT_EQUAL(0.0, res);
183
184 // "-1E+E" : no exponent
185 res = rtl::math::stringToDouble("-1E+E", '.', ',', &status, &end);
186 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
187 CPPUNIT_ASSERT_EQUAL(sal_Int32(2), end);
188 CPPUNIT_ASSERT_EQUAL(-1.0, res);
189
190 // "-0" is negative zero
191 res = rtl::math::stringToDouble("-0", '.', ',', &status, &end);
192 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
193 CPPUNIT_ASSERT_EQUAL(sal_Int32(2), end);
194 CPPUNIT_ASSERT_EQUAL(0.0, res);
195 CPPUNIT_ASSERT(std::signbit(res));
196
197 // Compensating: "0.001E311" is 1E308, not overflow/inf
198 res = rtl::math::stringToDouble("0.001E311", '.', ',', &status, &end);
199 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
200 CPPUNIT_ASSERT_EQUAL(sal_Int32(9), end);
201 CPPUNIT_ASSERT_EQUAL(1E308, res);
202
203 res = rtl::math::stringToDouble("1E8589934590", '.', ',', &status, &end);
204 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_OutOfRange, status);
205 CPPUNIT_ASSERT_EQUAL(sal_Int32(12), end);
206 CPPUNIT_ASSERT_EQUAL(std::numeric_limits<double>::infinity(), res);
207
208 // DBL_MAX and 4 nextafters
209 double fValAfter = DBL_MAX;
210 res = rtl::math::stringToDouble("1.7976931348623157e+308", '.', ',', &status, &end);
211 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
212 CPPUNIT_ASSERT_EQUAL(sal_Int32(23), end);
213 CPPUNIT_ASSERT_EQUAL(fValAfter, res);
214
215 fValAfter = std::nextafter( fValAfter, 0);
216 res = rtl::math::stringToDouble("1.7976931348623155e+308", '.', ',', &status, &end);
217 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
218 CPPUNIT_ASSERT_EQUAL(sal_Int32(23), end);
219 CPPUNIT_ASSERT_EQUAL(fValAfter, res);
220
221 fValAfter = std::nextafter( fValAfter, 0);
222 res = rtl::math::stringToDouble("1.7976931348623153e+308", '.', ',', &status, &end);
223 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
224 CPPUNIT_ASSERT_EQUAL(sal_Int32(23), end);
225 CPPUNIT_ASSERT_EQUAL(fValAfter, res);
226
227 fValAfter = std::nextafter( fValAfter, 0);
228 res = rtl::math::stringToDouble("1.7976931348623151e+308", '.', ',', &status, &end);
229 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
230 CPPUNIT_ASSERT_EQUAL(sal_Int32(23), end);
231 CPPUNIT_ASSERT_EQUAL(fValAfter, res);
232
233 fValAfter = std::nextafter( fValAfter, 0);
234 res = rtl::math::stringToDouble("1.7976931348623149e+308", '.', ',', &status, &end);
235 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
236 CPPUNIT_ASSERT_EQUAL(sal_Int32(23), end);
237 CPPUNIT_ASSERT_EQUAL(fValAfter, res);
238 }
239
240 void test_stringToDouble_bad() {
241 rtl_math_ConversionStatus status;
242 sal_Int32 end;
243 double res = rtl::math::stringToDouble(
244 " +Efoo",
245 '.', ',', &status, &end);
246 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
247 CPPUNIT_ASSERT_EQUAL(sal_Int32(0), end);
248 CPPUNIT_ASSERT_EQUAL(0.0, res);
249
250 res = rtl::math::stringToDouble(
251 ".",
252 '.', ',', &status, &end);
253 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
254 CPPUNIT_ASSERT_EQUAL(sal_Int32(0), end);
255 CPPUNIT_ASSERT_EQUAL(0.0, res);
256
257 res = rtl::math::stringToDouble(
258 " +.Efoo",
259 '.', ',', &status, &end);
260 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
261 CPPUNIT_ASSERT_EQUAL(sal_Int32(0), end);
262 CPPUNIT_ASSERT_EQUAL(0.0, res);
263
264 res = rtl::math::stringToDouble(
265 " +,.Efoo",
266 '.', ',', &status, &end);
267 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
268 CPPUNIT_ASSERT_EQUAL(sal_Int32(0), end);
269 CPPUNIT_ASSERT_EQUAL(0.0, res);
270
271 // Leading group separator is none.
272 res = rtl::math::stringToDouble(
273 ",1234",
274 '.', ',', &status, &end);
275 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
276 CPPUNIT_ASSERT_EQUAL(sal_Int32(0), end);
277 CPPUNIT_ASSERT_EQUAL(0.0, res);
278 }
279
280 void test_stringToDouble_exponent_without_digit() {
281 rtl_math_ConversionStatus status;
282 sal_Int32 end;
283 double res = rtl::math::stringToDouble(
284 "1e",
285 '.', ',', &status, &end);
286 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
287 CPPUNIT_ASSERT_EQUAL(RTL_CONSTASCII_LENGTH("1"), end);
288 CPPUNIT_ASSERT_EQUAL(1.0, res);
289 res = rtl::math::stringToDouble(
290 "0e",
291 '.', ',', &status, &end);
292 CPPUNIT_ASSERT_EQUAL(rtl_math_ConversionStatus_Ok, status);
293 CPPUNIT_ASSERT_EQUAL(RTL_CONSTASCII_LENGTH("1"), end);
294 CPPUNIT_ASSERT_EQUAL(0.0, res);
295 }
296
297 void test_round() {
298 double fVal = 5000000000000001.0;
299 CPPUNIT_ASSERT_EQUAL( 5000000000000001.0, rtl::math::round( fVal, 9, rtl_math_RoundingMode_Corrected));
300
301 fVal = 8796093022188.0;
302 CPPUNIT_ASSERT_EQUAL( 6093022188.0 , rtl::math::round( fVal, 9, rtl_math_RoundingMode_Corrected) - 8790000000000);
303
304 fVal = 4503599627370491.0;
305 CPPUNIT_ASSERT_EQUAL( 4503599627370000.0, rtl::math::round( fVal, -3, rtl_math_RoundingMode_Corrected));
306 }
307
308 void test_doubleToString() {
309 double fVal = 999999999999999.0;
310 sal_Int32 aGroups[3] = { 3, 2, 0 };
311 OUString aRes( rtl::math::doubleToUString( fVal,
312 rtl_math_StringFormat_Automatic,
313 rtl_math_DecimalPlaces_Max,
314 '.', aGroups, ',', true));
315 CPPUNIT_ASSERT_EQUAL( OUString("99,99,99,99,99,99,999"), aRes);
316
317 fVal = 949.0;
318 aRes = rtl::math::doubleToUString( fVal,
319 rtl_math_StringFormat_Automatic,
320 -2, // round before decimals
321 '.', aGroups, ',', true);
322 CPPUNIT_ASSERT_EQUAL( OUString("900"), aRes);
323
324 fVal = 950.0;
325 aRes = rtl::math::doubleToUString( fVal,
326 rtl_math_StringFormat_Automatic,
327 -2, // round before decimals
328 '.', aGroups, ',', true);
329 CPPUNIT_ASSERT_EQUAL( OUString("1,000"), aRes);
330
331 fVal = 4503599627370495.0;
332 aRes = rtl::math::doubleToUString( fVal,
333 rtl_math_StringFormat_Automatic,
334 rtl_math_DecimalPlaces_Max, '.');
335 CPPUNIT_ASSERT_EQUAL( OUString("4503599627370495"), aRes);
336
337 fVal = 4503599627370496.0;
338 aRes = rtl::math::doubleToUString( fVal,
339 rtl_math_StringFormat_Automatic,
340 2, '.');
341 CPPUNIT_ASSERT_EQUAL( OUString("4503599627370496.00"), aRes);
342
343 fVal = -4503599627370496.0;
344 aRes = rtl::math::doubleToUString( fVal,
345 rtl_math_StringFormat_Automatic,
346 2, '.');
347 CPPUNIT_ASSERT_EQUAL( OUString("-4503599627370496.00"), aRes);
348
349 fVal = 9007199254740991.0; // (2^53)-1
350 aRes = rtl::math::doubleToUString( fVal,
351 rtl_math_StringFormat_Automatic,
352 rtl_math_DecimalPlaces_Max, '.', true);
353 CPPUNIT_ASSERT_EQUAL( OUString("9007199254740991"), aRes);
354
355 fVal = 9007199254740992.0; // (2^53), algorithm switch
356 aRes = rtl::math::doubleToUString( fVal,
357 rtl_math_StringFormat_Automatic,
358 rtl_math_DecimalPlaces_Max, '.', true);
359 CPPUNIT_ASSERT_EQUAL( OUString("9.00719925474099E+015"), aRes);
360
361 fVal = 9007199254740993.0; // (2^53)+1 would be but is 9007199254740992
362 aRes = rtl::math::doubleToUString( fVal,
363 rtl_math_StringFormat_Automatic,
364 rtl_math_DecimalPlaces_Max, '.', true);
365 CPPUNIT_ASSERT_EQUAL( OUString("9.00719925474099E+015"), aRes);
366
367 // Test rtl_math_StringFormat_G
368
369 fVal = 0.001234567;
370 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, 3, '.', true);
371 CPPUNIT_ASSERT_EQUAL( OUString("0.00123"), aRes);
372
373 fVal = 123.4567;
374 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, 3, '.', true);
375 CPPUNIT_ASSERT_EQUAL( OUString("123"), aRes);
376
377 fVal = 123.4567;
378 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, 4, '.', true);
379 CPPUNIT_ASSERT_EQUAL( OUString("123.5"), aRes);
380
381 fVal = 99.6;
382 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, 3, '.', true);
383 CPPUNIT_ASSERT_EQUAL( OUString("99.6"), aRes);
384
385 // Expected could be 1E+03 (as 999.6 rounded to 3 significant digits
386 // results in 1000 with an exponent equal to significant digits).
387 // Currently we don't and output 1000 instead, negligible.
388 fVal = 999.6;
389 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, 3, '.', true);
390 CPPUNIT_ASSERT_EQUAL( OUString("1000"), aRes);
391
392 fVal = 9999.6;
393 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, 3, '.', true);
394 CPPUNIT_ASSERT_EQUAL( OUString("1E+004"), aRes);
395
396 fVal = 12345.6789;
397 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_G, -3, '.', true);
398 CPPUNIT_ASSERT_EQUAL( OUString("1.2E+004"), aRes);
399
400 // DBL_MAX and 4 nextafters
401 fVal = DBL_MAX;
402 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic,
403 rtl_math_DecimalPlaces_Max, '.', true);
404 CPPUNIT_ASSERT_EQUAL( OUString("1.7976931348623157E+308"), aRes);
405
406 fVal = std::nextafter( fVal, 0);
407 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic,
408 rtl_math_DecimalPlaces_Max, '.', true);
409 CPPUNIT_ASSERT_EQUAL( OUString("1.7976931348623155E+308"), aRes);
410
411 fVal = std::nextafter( fVal, 0);
412 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic,
413 rtl_math_DecimalPlaces_Max, '.', true);
414 CPPUNIT_ASSERT_EQUAL( OUString("1.7976931348623153E+308"), aRes);
415
416 fVal = std::nextafter( fVal, 0);
417 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic,
418 rtl_math_DecimalPlaces_Max, '.', true);
419 CPPUNIT_ASSERT_EQUAL( OUString("1.7976931348623151E+308"), aRes);
420
421 fVal = std::nextafter( fVal, 0);
422 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic,
423 rtl_math_DecimalPlaces_Max, '.', true);
424 CPPUNIT_ASSERT_EQUAL( OUString("1.797693134862315E+308"), aRes);
425 CPPUNIT_ASSERT_EQUAL(fVal, rtl::math::stringToDouble(aRes, '.', ',')); // Test roundtrip
426
427 // DBL_MAX and 4 nextafters rounded to 15 decimals
428 fVal = DBL_MAX;
429 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic, 15, '.', true);
430 CPPUNIT_ASSERT_EQUAL( OUString("1.797693134862316E+308"), aRes);
431
432 fVal = std::nextafter( fVal, 0);
433 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic, 15, '.', true);
434 CPPUNIT_ASSERT_EQUAL( OUString("1.797693134862316E+308"), aRes);
435
436 fVal = std::nextafter( fVal, 0);
437 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic, 15, '.', true);
438 CPPUNIT_ASSERT_EQUAL( OUString("1.797693134862315E+308"), aRes);
439
440 fVal = std::nextafter( fVal, 0);
441 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic, 15, '.', true);
442 CPPUNIT_ASSERT_EQUAL( OUString("1.797693134862315E+308"), aRes);
443
444 fVal = std::nextafter( fVal, 0);
445 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic, 15, '.', true);
446 CPPUNIT_ASSERT_EQUAL( OUString("1.797693134862315E+308"), aRes);
447
448 // DBL_MAX rounded to 14 decimals
449 fVal = DBL_MAX;
450 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic, 14, '.', true);
451 CPPUNIT_ASSERT_EQUAL( OUString("1.79769313486232E+308"), aRes);
452
453 // DBL_MAX rounded to 2 decimals
454 fVal = DBL_MAX;
455 aRes = rtl::math::doubleToUString( fVal, rtl_math_StringFormat_Automatic, 2, '.', true);
456 CPPUNIT_ASSERT_EQUAL( OUString("1.8E+308"), aRes);
457
458 // Crashed after commit eae24a9488814e77254d175c11fc4a138c1dbd30
459 fVal = 123456.789;
460 aRes = rtl::math::doubleToUString(fVal, rtl_math_StringFormat_E, 2, '.', false);
461 CPPUNIT_ASSERT_EQUAL(OUString("1.23E+005"), aRes);
462
463 fVal = 9.9999999999999929;
464 aRes = rtl::math::doubleToUString(fVal, rtl_math_StringFormat_Automatic, rtl_math_DecimalPlaces_Max, '.', true);
465 CPPUNIT_ASSERT_EQUAL(OUString("9.99999999999999"), aRes);
466
467 fVal = 0.99999999999999933;
468 aRes = rtl::math::doubleToUString(fVal, rtl_math_StringFormat_F, rtl_math_DecimalPlaces_Max, '.', true);
469 CPPUNIT_ASSERT_EQUAL(OUString("0.999999999999999"), aRes);
470 }
471
472 void test_approx() {
473 // (2^53)-1 , (2^53)-3
474 CPPUNIT_ASSERT_EQUAL( false, rtl::math::approxEqual( 9007199254740991.0, 9007199254740989.0));
475 // (2^53)-1 , (2^53)-2
476 CPPUNIT_ASSERT_EQUAL( false, rtl::math::approxEqual( 9007199254740991.0, 9007199254740990.0));
477 // Note: the following are internally represented as 900719925474099.12
478 // and 900719925474098.88 and the difference is 0.25 ...
479 CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 900719925474099.1, 900719925474098.9));
480 CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 72.944444444444443, 72.9444444444444));
481 CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 359650.27322404372, 359650.27322404401));
482 CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 5.3590326375710063e+238, 5.3590326375710109e+238));
483 CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 7.4124095894894475e+158, 7.4124095894894514e+158));
484 CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 1.2905754687023132e+79, 1.2905754687023098e+79));
485 CPPUNIT_ASSERT_EQUAL( true, rtl::math::approxEqual( 3.5612905090455637e+38, 3.5612905090455599e+38));
486 // 0.3 - 0.2 - 0.1 == 0.0
487 CPPUNIT_ASSERT_EQUAL( 0.0, rtl::math::approxSub( rtl::math::approxSub( 0.3, 0.2), 0.1));
488 // ((2^53)-1) - ((2^53)-2) == 1.0
489 CPPUNIT_ASSERT_EQUAL( 1.0, rtl::math::approxSub( 9007199254740991.0, 9007199254740990.0));
490 // (3^31) - ((3^31)-1) == 1.0
491 CPPUNIT_ASSERT_EQUAL( 1.0, rtl::math::approxSub( 617673396283947.0, 617673396283946.0));
492 }
493
494 void test_erf() {
495 double x, res;
496 x = 0.0;
497 res = rtl::math::erf(x);
498 CPPUNIT_ASSERT_EQUAL(0.0,res);
499 rtl::math::setInf( &x, false);
500 res = rtl::math::erf(x);
501 CPPUNIT_ASSERT_EQUAL(1.0,res);
502 rtl::math::setInf( &x, true);
503 res = rtl::math::erf(x);
504 CPPUNIT_ASSERT_EQUAL(-1.0,res);
505 rtl::math::setNan( &x);
506 res = rtl::math::erf(x);
507 CPPUNIT_ASSERT(std::isnan(res));
508 x = 3.0;
509 res = rtl::math::erf(-x);
510 CPPUNIT_ASSERT_DOUBLES_EQUAL( -rtl::math::erf(x), res, 1E-12);
511 }
512
513 void test_erfc() {
514 double x, res;
515 x = 0.0;
516 res = rtl::math::erfc(x);
517 CPPUNIT_ASSERT_EQUAL(1.0,res);
518 rtl::math::setInf( &x, false);
519 res = rtl::math::erfc(x);
520 CPPUNIT_ASSERT_EQUAL(0.0,res);
521 rtl::math::setInf( &x, true);
522 res = rtl::math::erfc(x);
523 CPPUNIT_ASSERT_EQUAL(2.0,res);
524 rtl::math::setNan( &x);
525 res = rtl::math::erfc(x);
526 CPPUNIT_ASSERT(std::isnan(res));
527 x = 3.0;
528 res = rtl::math::erfc(-x);
529 CPPUNIT_ASSERT_DOUBLES_EQUAL( 2.0 - rtl::math::erfc(x), res, 1E-12);
530 }
531
532 void test_expm1() {
533 double x, res;
534 x = 0.0;
535 res = rtl::math::expm1(x);
536 CPPUNIT_ASSERT_EQUAL(0.0,res);
537 x = -0.0;
538 res = rtl::math::expm1(x);
539 CPPUNIT_ASSERT_EQUAL(-0.0,res);
540 CPPUNIT_ASSERT(std::signbit(res));
541 rtl::math::setInf( &x, false);
542 res = rtl::math::expm1(x);
543 CPPUNIT_ASSERT_EQUAL(true, std::isinf(res) && !std::signbit(res));
544 rtl::math::setInf( &x, true);
545 res = rtl::math::expm1(x);
546 CPPUNIT_ASSERT_EQUAL(-1.0,res);
547 rtl::math::setNan( &x);
548 res = rtl::math::expm1(x);
549 CPPUNIT_ASSERT(std::isnan(res));
550 }
551
552 void test_log1p() {
553 double x, res;
554 x = 0.0;
555 res = rtl::math::log1p(x);
556 CPPUNIT_ASSERT_EQUAL(0.0,res);
557 x = -0.0;
558 res = rtl::math::log1p(x);
559 CPPUNIT_ASSERT_EQUAL(-0.0,res);
560 CPPUNIT_ASSERT(std::signbit(res));
561 rtl::math::setInf( &x, false);
562 res = rtl::math::log1p(x);
563 CPPUNIT_ASSERT_EQUAL(true, std::isinf(res) && !std::signbit(res));
564 x = -1.0;
565 res = rtl::math::log1p(x);
566 CPPUNIT_ASSERT_EQUAL(true, std::isinf(res) && std::signbit(res));
567 x = -1.1;
568 res = rtl::math::log1p(x);
569 CPPUNIT_ASSERT(std::isnan(res));
570 rtl::math::setInf( &x, true);
571 res = rtl::math::log1p(x);
572 CPPUNIT_ASSERT(std::isnan(res));
573 rtl::math::setNan( &x);
574 res = rtl::math::log1p(x);
575 CPPUNIT_ASSERT(std::isnan(res));
576 }
577
578 void test_acosh() {
579 double res;
580
581 res = rtl::math::acosh(-1.0); // NaN
582 CPPUNIT_ASSERT(std::isnan(res));
583
584 res = rtl::math::acosh(0.0); // NaN
585 CPPUNIT_ASSERT(std::isnan(res));
586
587 res = rtl::math::acosh(0.5); // NaN
588 CPPUNIT_ASSERT(std::isnan(res));
589
590 CPPUNIT_ASSERT_EQUAL(0.0, rtl::math::acosh(1.0));
591
592 res = rtl::math::acosh(std::numeric_limits<double>::infinity()); // +Inf
593 CPPUNIT_ASSERT(!std::signbit(res));
594 CPPUNIT_ASSERT(std::isinf(res));
595
596 // #i97605
597 CPPUNIT_ASSERT_DOUBLES_EQUAL(692.56728736744176, rtl::math::acosh(3e+300), 1e-15);
598 CPPUNIT_ASSERT_DOUBLES_EQUAL(0.014142017775252324, rtl::math::acosh(1.0001), 1e-15);
599 }
600
601 void test_asinh() {
602 double res;
603
604 res = rtl::math::asinh(-std::numeric_limits<double>::infinity()); // -Inf
605 CPPUNIT_ASSERT(std::signbit(res));
606 CPPUNIT_ASSERT(std::isinf(res));
607
608 CPPUNIT_ASSERT_EQUAL(0.0, rtl::math::asinh(0.0));
609
610 res = rtl::math::asinh(std::numeric_limits<double>::infinity()); // +Inf
611 CPPUNIT_ASSERT(!std::signbit(res));
612 CPPUNIT_ASSERT(std::isinf(res));
613
614 // #i97605
615 CPPUNIT_ASSERT_DOUBLES_EQUAL(691.67568924815798, rtl::math::asinh(1.23e+300), 1e-15);
616 CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0350378961923076, rtl::math::asinh(1.23), 1e-16);
617 CPPUNIT_ASSERT_DOUBLES_EQUAL(1.23e-300, rtl::math::asinh(1.23e-300), 1e-303);
618
619 // asinh is an odd function
620 CPPUNIT_ASSERT_EQUAL(-rtl::math::asinh(1.23e+300), rtl::math::asinh(-1.23e+300));
621 CPPUNIT_ASSERT_EQUAL(-rtl::math::asinh(1.23), rtl::math::asinh(-1.23));
622 CPPUNIT_ASSERT_EQUAL(-rtl::math::asinh(1.23e-300), rtl::math::asinh(-1.23e-300));
623 }
624
625 void test_atanh() {
626 double res;
627
628 res = rtl::math::atanh(-2.0); // NaN
629 CPPUNIT_ASSERT(std::isnan(res));
630
631 res = rtl::math::atanh(-1.0); // -Inf
632 CPPUNIT_ASSERT(std::signbit(res));
633 CPPUNIT_ASSERT(std::isinf(res));
634
635 CPPUNIT_ASSERT_EQUAL(0.0, rtl::math::atanh(0.0));
636
637 res = rtl::math::atanh(1.0); // +Inf
638 CPPUNIT_ASSERT(!std::signbit(res));
639 CPPUNIT_ASSERT(std::isinf(res));
640
641 res = rtl::math::atanh(2.0); // NaN
642 CPPUNIT_ASSERT(std::isnan(res));
643 }
644
645 void test_payloadNaN() {
646 // Test that a quiet NaN payload is propagated and behaves as we
647 // expect. Ideally that could be done with a constexpr in
648 // sal/rtl/math.cxx to fail already during compile time instead of make
649 // check, but..
650 // See
651 // https://grouper.ieee.org/groups/msc/ANSI_IEEE-Std-754-2019/background/nan-propagation.pdf
652 double fVal1 = std::numeric_limits<double>::quiet_NaN();
653 reinterpret_cast<sal_math_Double*>(&fVal1)->nan_parts.fraction_lo = 0xbeef;
654 const double fVal2 = 0 + fVal1;
655 CPPUNIT_ASSERT(std::isnan(fVal2));
656 CPPUNIT_ASSERT_EQUAL_MESSAGE("Your platform does not support propagation of NaN payloads.",
657 static_cast<sal_uInt32>(0xbeef),
658 static_cast<sal_uInt32>(reinterpret_cast<const sal_math_Double*>(&fVal2)->nan_parts.fraction_lo));
659 reinterpret_cast<sal_math_Double*>(&fVal1)->nan_parts.fraction_lo = 0xdead;
660 const double fVal3 = fVal1 + fVal2;
661 // Result is one of the payloaded NaNs but the standard does not
662 // specify which.
663 CPPUNIT_ASSERT_MESSAGE("Your platform does not support propagation of two combined NaN payloads.",
664 0xbeef == reinterpret_cast<const sal_math_Double*>(&fVal3)->nan_parts.fraction_lo ||
665 0xdead == reinterpret_cast<const sal_math_Double*>(&fVal3)->nan_parts.fraction_lo);
666 }
667
668 CPPUNIT_TEST_SUITE(Test);
669 CPPUNIT_TEST(test_stringToDouble_good);
670 CPPUNIT_TEST(test_stringToDouble_bad);
671 CPPUNIT_TEST(test_stringToDouble_exponent_without_digit);
672 CPPUNIT_TEST(test_round);
673 CPPUNIT_TEST(test_doubleToString);
674 CPPUNIT_TEST(test_erf);
675 CPPUNIT_TEST(test_erfc);
676 CPPUNIT_TEST(test_expm1);
677 CPPUNIT_TEST(test_log1p);
678 CPPUNIT_TEST(test_approx);
679 CPPUNIT_TEST(test_acosh);
680 CPPUNIT_TEST(test_asinh);
681 CPPUNIT_TEST(test_atanh);
682 CPPUNIT_TEST(test_payloadNaN);
683 CPPUNIT_TEST_SUITE_END();
684 };
685
686 CPPUNIT_TEST_SUITE_REGISTRATION(Test);
687
688 }
689
690 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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