1 // This module does unit testing of m_libcbase.
2
3 #include <assert.h>
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <stddef.h>
7
8 #include "pub_tool_basics.h" /* UInt et al, needed for pub_tool_vki.h */
9 #include "pub_tool_vki.h"
10 #include "m_libcbase.c"
11
12 /* Provide a stub to not have to pull in m_debuglog.c */
VG_(debugLog)13 void VG_(debugLog) ( Int level, const HChar* modulename,
14 const HChar* format, ... )
15 {
16 va_list args;
17 va_start(args, format);
18 fprintf(stderr, "debuglog: %s: ", modulename);
19 vfprintf(stderr, format, args);
20 va_end(args);
21 }
22
23 /* Provide a stub to not have to pull in m_libcassert.c */
VG_(exit_now)24 void VG_(exit_now)( Int status )
25 {
26 exit(status);
27 }
28
29
30 #define CHECK(x) \
31 if (!x) { fprintf(stderr, "failure: %s:%d\n", __FILE__, __LINE__); }
32
33
test_VG_STREQ(void)34 void test_VG_STREQ(void)
35 {
36 CHECK( ! VG_STREQ(NULL, NULL) ); // Nb: strcmp() considers these equal
37 CHECK( ! VG_STREQ(NULL, "ab") ); // Nb: strcmp() seg faults on this
38 CHECK( ! VG_STREQ("ab", NULL) ); // Nb: strcmp() seg faults on this
39 CHECK( ! VG_STREQ("", "a") );
40 CHECK( ! VG_STREQ("a", "") );
41 CHECK( ! VG_STREQ("abc", "abcd"));
42 CHECK( ! VG_STREQ("abcd", "abc") );
43 CHECK( ! VG_STREQ("Abcd", "abcd"));
44 CHECK( ! VG_STREQ("abcd", "Abcd"));
45
46 CHECK( VG_STREQ("", "") );
47 CHECK( VG_STREQ("a", "a") );
48 CHECK( VG_STREQ("abcd", "abcd") );
49 }
50
test_VG_STREQN(void)51 void test_VG_STREQN(void)
52 {
53 CHECK( ! VG_STREQN(0, NULL, NULL) );
54 CHECK( ! VG_STREQN(5, NULL, NULL) );
55 CHECK( ! VG_STREQN(0, NULL, "ab") );
56 CHECK( ! VG_STREQN(5, NULL, "ab") );
57 CHECK( ! VG_STREQN(0, "ab", NULL) );
58 CHECK( ! VG_STREQN(1, "", "a") );
59 CHECK( ! VG_STREQN(1, "a", "") );
60 CHECK( ! VG_STREQN(4, "abc", "abcd"));
61 CHECK( ! VG_STREQN(4, "abcd", "abc") );
62 CHECK( ! VG_STREQN(1, "Abcd", "abcd"));
63 CHECK( ! VG_STREQN(4, "Abcd", "abcd"));
64 CHECK( ! VG_STREQN(4, "abcd", "abce"));
65 CHECK( ! VG_STREQN(9, "abcd", "abce"));
66
67 CHECK( VG_STREQN(0, "", "") );
68 CHECK( VG_STREQN(1, "", "") );
69 CHECK( VG_STREQN(0, "a", "a") );
70 CHECK( VG_STREQN(1, "a", "a") );
71 CHECK( VG_STREQN(2, "a", "a") );
72 CHECK( VG_STREQN(9, "a", "a") );
73 CHECK( VG_STREQN(1, "ab", "ac"));
74 CHECK( VG_STREQN(3, "abcd", "abce"));
75 }
76
77 // On PPC/Linux VKI_PAGE_SIZE is a variable, not a macro.
78 #if defined(VGP_ppc32_linux) || defined(VGP_ppc64be_linux) \
79 || defined(VGP_ppc64le_linux)
80 unsigned long VKI_PAGE_SIZE = 1UL << 12;
81 #elif defined(VGP_arm64_linux)
82 unsigned long VKI_PAGE_SIZE = 1UL << 16;
83 #endif
84
test_VG_IS_XYZ_ALIGNED(void)85 void test_VG_IS_XYZ_ALIGNED(void)
86 {
87 CHECK( VG_IS_2_ALIGNED(0x0) );
88 CHECK( ! VG_IS_2_ALIGNED(0x1) );
89 CHECK( VG_IS_2_ALIGNED(0x2) );
90 CHECK( ! VG_IS_2_ALIGNED(0x3) );
91 CHECK( VG_IS_2_ALIGNED(0x4) );
92 CHECK( ! VG_IS_2_ALIGNED(0x5) );
93 CHECK( VG_IS_2_ALIGNED(0x6) );
94 CHECK( ! VG_IS_2_ALIGNED(0x7) );
95 CHECK( VG_IS_2_ALIGNED(0x8) );
96 CHECK( ! VG_IS_2_ALIGNED(0x9) );
97 CHECK( VG_IS_2_ALIGNED(0xa) );
98 CHECK( ! VG_IS_2_ALIGNED(0xb) );
99 CHECK( VG_IS_2_ALIGNED(0xc) );
100 CHECK( ! VG_IS_2_ALIGNED(0xd) );
101 CHECK( VG_IS_2_ALIGNED(0xe) );
102 CHECK( ! VG_IS_2_ALIGNED(0xf) );
103
104 CHECK( VG_IS_4_ALIGNED(0x0) );
105 CHECK( ! VG_IS_4_ALIGNED(0x1) );
106 CHECK( ! VG_IS_4_ALIGNED(0x2) );
107 CHECK( ! VG_IS_4_ALIGNED(0x3) );
108 CHECK( VG_IS_4_ALIGNED(0x4) );
109 CHECK( ! VG_IS_4_ALIGNED(0x5) );
110 CHECK( ! VG_IS_4_ALIGNED(0x6) );
111 CHECK( ! VG_IS_4_ALIGNED(0x7) );
112 CHECK( VG_IS_4_ALIGNED(0x8) );
113 CHECK( ! VG_IS_4_ALIGNED(0x9) );
114 CHECK( ! VG_IS_4_ALIGNED(0xa) );
115 CHECK( ! VG_IS_4_ALIGNED(0xb) );
116 CHECK( VG_IS_4_ALIGNED(0xc) );
117 CHECK( ! VG_IS_4_ALIGNED(0xd) );
118 CHECK( ! VG_IS_4_ALIGNED(0xe) );
119 CHECK( ! VG_IS_4_ALIGNED(0xf) );
120
121 CHECK( VG_IS_8_ALIGNED(0x0) );
122 CHECK( ! VG_IS_8_ALIGNED(0x1) );
123 CHECK( ! VG_IS_8_ALIGNED(0x2) );
124 CHECK( ! VG_IS_8_ALIGNED(0x3) );
125 CHECK( ! VG_IS_8_ALIGNED(0x4) );
126 CHECK( ! VG_IS_8_ALIGNED(0x5) );
127 CHECK( ! VG_IS_8_ALIGNED(0x6) );
128 CHECK( ! VG_IS_8_ALIGNED(0x7) );
129 CHECK( VG_IS_8_ALIGNED(0x8) );
130 CHECK( ! VG_IS_8_ALIGNED(0x9) );
131 CHECK( ! VG_IS_8_ALIGNED(0xa) );
132 CHECK( ! VG_IS_8_ALIGNED(0xb) );
133 CHECK( ! VG_IS_8_ALIGNED(0xc) );
134 CHECK( ! VG_IS_8_ALIGNED(0xd) );
135 CHECK( ! VG_IS_8_ALIGNED(0xe) );
136 CHECK( ! VG_IS_8_ALIGNED(0xf) );
137
138 CHECK( VG_IS_16_ALIGNED(0x0) );
139 CHECK( ! VG_IS_16_ALIGNED(0x1) );
140 CHECK( ! VG_IS_16_ALIGNED(0x2) );
141 CHECK( ! VG_IS_16_ALIGNED(0x3) );
142 CHECK( ! VG_IS_16_ALIGNED(0x4) );
143 CHECK( ! VG_IS_16_ALIGNED(0x5) );
144 CHECK( ! VG_IS_16_ALIGNED(0x6) );
145 CHECK( ! VG_IS_16_ALIGNED(0x7) );
146 CHECK( ! VG_IS_16_ALIGNED(0x8) );
147 CHECK( ! VG_IS_16_ALIGNED(0x9) );
148 CHECK( ! VG_IS_16_ALIGNED(0xa) );
149 CHECK( ! VG_IS_16_ALIGNED(0xb) );
150 CHECK( ! VG_IS_16_ALIGNED(0xc) );
151 CHECK( ! VG_IS_16_ALIGNED(0xd) );
152 CHECK( ! VG_IS_16_ALIGNED(0xe) );
153 CHECK( ! VG_IS_16_ALIGNED(0xf) );
154
155 CHECK( VG_IS_WORD_ALIGNED(0x0) );
156 CHECK( ! VG_IS_WORD_ALIGNED(0x1) );
157 CHECK( ! VG_IS_WORD_ALIGNED(0x2) );
158 CHECK( ! VG_IS_WORD_ALIGNED(0x3) );
159 // 0x4 case below
160 CHECK( ! VG_IS_WORD_ALIGNED(0x5) );
161 CHECK( ! VG_IS_WORD_ALIGNED(0x6) );
162 CHECK( ! VG_IS_WORD_ALIGNED(0x7) );
163 CHECK( VG_IS_WORD_ALIGNED(0x8) );
164 CHECK( ! VG_IS_WORD_ALIGNED(0x9) );
165 CHECK( ! VG_IS_WORD_ALIGNED(0xa) );
166 CHECK( ! VG_IS_WORD_ALIGNED(0xb) );
167 // 0xc case below
168 CHECK( ! VG_IS_WORD_ALIGNED(0xd) );
169 CHECK( ! VG_IS_WORD_ALIGNED(0xe) );
170 CHECK( ! VG_IS_WORD_ALIGNED(0xf) );
171 if (4 == sizeof(void*)) {
172 CHECK( VG_IS_WORD_ALIGNED(0x4) );
173 CHECK( VG_IS_WORD_ALIGNED(0xc) );
174 } else if (8 == sizeof(void*)) {
175 CHECK( ! VG_IS_WORD_ALIGNED(0x4) );
176 CHECK( ! VG_IS_WORD_ALIGNED(0xc) );
177 } else {
178 assert(0);
179 }
180
181 CHECK( VG_IS_PAGE_ALIGNED(0x0) );
182 CHECK( ! VG_IS_PAGE_ALIGNED(0x1) );
183 CHECK( ! VG_IS_PAGE_ALIGNED(0x2) );
184 CHECK( ! VG_IS_PAGE_ALIGNED(0x3) );
185 CHECK( ! VG_IS_PAGE_ALIGNED(0x4) );
186 CHECK( ! VG_IS_PAGE_ALIGNED(VKI_PAGE_SIZE-1) );
187 CHECK( VG_IS_PAGE_ALIGNED(VKI_PAGE_SIZE ) );
188 CHECK( ! VG_IS_PAGE_ALIGNED(VKI_PAGE_SIZE+1) );
189 }
190
test_VG_ROUND_et_al()191 void test_VG_ROUND_et_al()
192 {
193 CHECK( 0 == VG_ROUNDDN(0, 1) );
194 CHECK( 1 == VG_ROUNDDN(1, 1) );
195 CHECK( 2 == VG_ROUNDDN(2, 1) );
196 CHECK( 3 == VG_ROUNDDN(3, 1) );
197 CHECK( 4 == VG_ROUNDDN(4, 1) );
198 CHECK( 5 == VG_ROUNDDN(5, 1) );
199 CHECK( 6 == VG_ROUNDDN(6, 1) );
200 CHECK( 7 == VG_ROUNDDN(7, 1) );
201
202 CHECK( 0 == VG_ROUNDUP(0, 1) );
203 CHECK( 1 == VG_ROUNDUP(1, 1) );
204 CHECK( 2 == VG_ROUNDUP(2, 1) );
205 CHECK( 3 == VG_ROUNDUP(3, 1) );
206 CHECK( 4 == VG_ROUNDUP(4, 1) );
207 CHECK( 5 == VG_ROUNDUP(5, 1) );
208 CHECK( 6 == VG_ROUNDUP(6, 1) );
209 CHECK( 7 == VG_ROUNDUP(7, 1) );
210
211 CHECK( 0 == VG_ROUNDDN(0, 2) );
212 CHECK( 0 == VG_ROUNDDN(1, 2) );
213 CHECK( 2 == VG_ROUNDDN(2, 2) );
214 CHECK( 2 == VG_ROUNDDN(3, 2) );
215 CHECK( 4 == VG_ROUNDDN(4, 2) );
216 CHECK( 4 == VG_ROUNDDN(5, 2) );
217 CHECK( 6 == VG_ROUNDDN(6, 2) );
218 CHECK( 6 == VG_ROUNDDN(7, 2) );
219
220 CHECK( 0 == VG_ROUNDUP(0, 2) );
221 CHECK( 2 == VG_ROUNDUP(1, 2) );
222 CHECK( 2 == VG_ROUNDUP(2, 2) );
223 CHECK( 4 == VG_ROUNDUP(3, 2) );
224 CHECK( 4 == VG_ROUNDUP(4, 2) );
225 CHECK( 6 == VG_ROUNDUP(5, 2) );
226 CHECK( 6 == VG_ROUNDUP(6, 2) );
227 CHECK( 8 == VG_ROUNDUP(7, 2) );
228
229 CHECK( 0 == VG_ROUNDDN(0, 4) );
230 CHECK( 0 == VG_ROUNDDN(1, 4) );
231 CHECK( 0 == VG_ROUNDDN(2, 4) );
232 CHECK( 0 == VG_ROUNDDN(3, 4) );
233 CHECK( 4 == VG_ROUNDDN(4, 4) );
234 CHECK( 4 == VG_ROUNDDN(5, 4) );
235 CHECK( 4 == VG_ROUNDDN(6, 4) );
236 CHECK( 4 == VG_ROUNDDN(7, 4) );
237
238 CHECK( 0 == VG_ROUNDUP(0, 4) );
239 CHECK( 4 == VG_ROUNDUP(1, 4) );
240 CHECK( 4 == VG_ROUNDUP(2, 4) );
241 CHECK( 4 == VG_ROUNDUP(3, 4) );
242 CHECK( 4 == VG_ROUNDUP(4, 4) );
243 CHECK( 8 == VG_ROUNDUP(5, 4) );
244 CHECK( 8 == VG_ROUNDUP(6, 4) );
245 CHECK( 8 == VG_ROUNDUP(7, 4) );
246
247 CHECK( 0 == VG_ROUNDDN(0, 8) );
248 CHECK( 0 == VG_ROUNDDN(1, 8) );
249 CHECK( 0 == VG_ROUNDDN(2, 8) );
250 CHECK( 0 == VG_ROUNDDN(3, 8) );
251 CHECK( 0 == VG_ROUNDDN(4, 8) );
252 CHECK( 0 == VG_ROUNDDN(5, 8) );
253 CHECK( 0 == VG_ROUNDDN(6, 8) );
254 CHECK( 0 == VG_ROUNDDN(7, 8) );
255
256 CHECK( 0 == VG_ROUNDUP(0, 8) );
257 CHECK( 8 == VG_ROUNDUP(1, 8) );
258 CHECK( 8 == VG_ROUNDUP(2, 8) );
259 CHECK( 8 == VG_ROUNDUP(3, 8) );
260 CHECK( 8 == VG_ROUNDUP(4, 8) );
261 CHECK( 8 == VG_ROUNDUP(5, 8) );
262 CHECK( 8 == VG_ROUNDUP(6, 8) );
263 CHECK( 8 == VG_ROUNDUP(7, 8) );
264
265 CHECK( 0 == VG_PGROUNDDN(0) );
266 CHECK( 0 == VG_PGROUNDDN(1) );
267 CHECK( 0 == VG_PGROUNDDN(2) );
268 CHECK( 0 == VG_PGROUNDDN(3) );
269 CHECK( 0 == VG_PGROUNDDN(4) );
270 CHECK( 0 == VG_PGROUNDDN(VKI_PAGE_SIZE-1) );
271 CHECK( VKI_PAGE_SIZE == VG_PGROUNDDN(VKI_PAGE_SIZE ) );
272 CHECK( VKI_PAGE_SIZE == VG_PGROUNDDN(VKI_PAGE_SIZE+1) );
273
274 CHECK( 0 == VG_PGROUNDUP(0) );
275 CHECK( VKI_PAGE_SIZE == VG_PGROUNDUP(1) );
276 CHECK( VKI_PAGE_SIZE == VG_PGROUNDUP(2) );
277 CHECK( VKI_PAGE_SIZE == VG_PGROUNDUP(3) );
278 CHECK( VKI_PAGE_SIZE == VG_PGROUNDUP(4) );
279 CHECK( VKI_PAGE_SIZE == VG_PGROUNDUP(VKI_PAGE_SIZE-1) );
280 CHECK( VKI_PAGE_SIZE == VG_PGROUNDUP(VKI_PAGE_SIZE ) );
281 CHECK( VKI_PAGE_SIZE*2 == VG_PGROUNDUP(VKI_PAGE_SIZE+1) );
282 }
283
test_isspace(void)284 void test_isspace(void)
285 {
286 CHECK( VG_(isspace)(' ') );
287 CHECK( VG_(isspace)('\n') );
288 CHECK( VG_(isspace)('\t') );
289 CHECK( ! VG_(isspace)('3') );
290 CHECK( ! VG_(isspace)('x') );
291 }
292
test_isdigit(void)293 void test_isdigit(void)
294 {
295 CHECK( VG_(isdigit)('0') );
296 CHECK( VG_(isdigit)('1') );
297 CHECK( VG_(isdigit)('5') );
298 CHECK( VG_(isdigit)('9') );
299 CHECK( ! VG_(isdigit)('a') );
300 CHECK( ! VG_(isdigit)('!') );
301 }
302
test_is_dec_digit()303 void test_is_dec_digit()
304 {
305 Long x;
306 CHECK( is_dec_digit('0', &x) && 0 == x );
307 CHECK( is_dec_digit('1', &x) && 1 == x );
308 CHECK( is_dec_digit('9', &x) && 9 == x );
309 }
310
test_is_hex_digit()311 void test_is_hex_digit()
312 {
313 Long x;
314 CHECK( is_hex_digit('0', &x) && 0 == x );
315 CHECK( is_hex_digit('1', &x) && 1 == x );
316 CHECK( is_hex_digit('9', &x) && 9 == x );
317 CHECK( is_hex_digit('a', &x) && 10 == x );
318 CHECK( is_hex_digit('f', &x) && 15 == x );
319 CHECK( is_hex_digit('A', &x) && 10 == x );
320 CHECK( is_hex_digit('F', &x) && 15 == x );
321 }
322
test_strtoll_and_strtod(void)323 void test_strtoll_and_strtod(void)
324 {
325 // For VG_(strtoll*)()
326 typedef struct {
327 HChar* str; // The string to convert.
328 Long res; // The result.
329 HChar endptr_val; // The char one past the end of the converted text.
330 } StrtollInputs;
331
332 // VG_(strtoll10)()
333 {
334 StrtollInputs a[] = {
335 // If there's no number at the head of the string, return 0, and
336 // make 'endptr' point to the start of the string.
337 { .str = "", .res = 0, .endptr_val = '\0' },
338 { .str = " \n\t", .res = 0, .endptr_val = ' ' },
339 { .str = "one", .res = 0, .endptr_val = 'o' },
340 { .str = "\ntwo", .res = 0, .endptr_val = '\n' },
341
342 // Successful conversion. Leading whitespace is ignored. A single
343 // '-' or '+' is accepted.
344 { .str = "0", .res = 0, .endptr_val = '\0' },
345 { .str = "+0", .res = 0, .endptr_val = '\0' },
346 { .str = "-0", .res = 0, .endptr_val = '\0' },
347 { .str = "1", .res = 1, .endptr_val = '\0' },
348 { .str = "+1", .res = 1, .endptr_val = '\0' },
349 { .str = "-1", .res = -1, .endptr_val = '\0' },
350 { .str = "12", .res = 12, .endptr_val = '\0' },
351 { .str = "-567", .res = -567, .endptr_val = '\0' },
352 { .str = "1234567", .res = 1234567, .endptr_val = '\0' },
353 { .str = "007", .res = 7, .endptr_val = '\0' },
354 { .str = " +42", .res = 42, .endptr_val = '\0' },
355 { .str = "\n\t\r\v -56", .res = -56, .endptr_val = '\0' },
356 { .str = "123xyz", .res = 123, .endptr_val = 'x' },
357 { .str = " -123abc", .res = -123, .endptr_val = 'a' },
358
359 // Whitespace after the +/- is not allowed; conversion fails.
360 { .str = "+ 1", .res = 0, .endptr_val = '+' },
361 { .str = "-\n1", .res = 0, .endptr_val = '-' },
362 };
363
364 // Nb: We test the results against strtoll() as well.
365 int i;
366 for (i = 0; i < (sizeof(a) / sizeof(StrtollInputs)); i++) {
367 HChar* endptr1;
368 HChar* endptr2;
369 Long res1 = VG_(strtoll10)(a[i].str, &endptr1);
370 long long res2 = strtoll (a[i].str, &endptr2, 10);
371 //printf("res1 = %lld, *endptr1 = '%c'\n", res1, *endptr1);
372 //printf("res2 = %lld, *endptr2 = '%c'\n", res2, *endptr2);
373 CHECK(a[i].res == res1 && a[i].endptr_val == *endptr1);
374 CHECK(res2 == res1 && *endptr2 == *endptr1);
375 }
376 }
377
378 // VG_(strtoll16)()
379 {
380 StrtollInputs a[] = {
381 // If there's no number at the head of the string, return 0, and
382 // make 'endptr' point to the start of the string.
383 { .str = "", .res = 0, .endptr_val = '\0' },
384 { .str = " \n\t", .res = 0, .endptr_val = ' ' },
385 { .str = "one", .res = 0, .endptr_val = 'o' },
386 { .str = "\ntwo", .res = 0, .endptr_val = '\n' },
387
388 // Successful conversion. Leading whitespace is ignored. A single
389 // '-' or '+' is accepted. "0X" and "0x" are also allowed at the
390 // front, but if no digits follow, just the "0" is converted.
391 { .str = "0", .res = 0, .endptr_val = '\0' },
392 { .str = "0x0", .res = 0, .endptr_val = '\0' },
393 { .str = "0X0", .res = 0, .endptr_val = '\0' },
394 { .str = "0x", .res = 0, .endptr_val = 'x' },
395 { .str = "0Xg", .res = 0, .endptr_val = 'X' },
396 { .str = "0", .res = 0, .endptr_val = '\0' },
397 { .str = "+0", .res = 0, .endptr_val = '\0' },
398 { .str = "-0", .res = 0, .endptr_val = '\0' },
399 { .str = "1", .res = 1, .endptr_val = '\0' },
400 { .str = "+1", .res = 1, .endptr_val = '\0' },
401 { .str = "-1", .res = -1, .endptr_val = '\0' },
402 { .str = "1a", .res = 26, .endptr_val = '\0' },
403 { .str = "-5F7", .res = -1527, .endptr_val = '\0' },
404 { .str = "0x1234567", .res = 19088743, .endptr_val = '\0' },
405 { .str = "007", .res = 7, .endptr_val = '\0' },
406 { .str = "0X00ABCD", .res = 43981, .endptr_val = '\0' },
407 { .str = " +AbC", .res = 2748, .endptr_val = '\0' },
408 { .str = " -0xAbC", .res = -2748, .endptr_val = '\0' },
409 { .str = " -0xxx", .res = 0, .endptr_val = 'x' },
410 { .str = "\n\t\r\v -56", .res = -86, .endptr_val = '\0' },
411 { .str = "123xyz", .res = 291, .endptr_val = 'x' },
412 { .str = " -123defghi", .res = -1195503, .endptr_val = 'g' },
413
414 // Whitespace after the +/- is not allowed; conversion fails.
415 { .str = "+ 1", .res = 0, .endptr_val = '+' },
416 { .str = "-\n0x1", .res = 0, .endptr_val = '-' },
417 };
418
419 // Nb: We test the results against strtoll() as well.
420 int i;
421 for (i = 0; i < (sizeof(a) / sizeof(StrtollInputs)); i++) {
422 HChar* endptr1;
423 HChar* endptr2;
424 Long res1 = VG_(strtoll16)(a[i].str, &endptr1);
425 long long res2 = strtoll (a[i].str, &endptr2, 16);
426 //printf(" res1 = %lld, *endptr1 = '%c'\n", res1, *endptr1);
427 //printf(" res2 = %lld, *endptr2 = '%c'\n", res2, *endptr2);
428 CHECK(a[i].res == res1 && a[i].endptr_val == *endptr1);
429 CHECK(res2 == res1 && *endptr2 == *endptr1);
430 }
431 }
432
433 // VG_(strtod)()
434 // XXX: todo
435 }
436
test_log2(void)437 void test_log2(void)
438 {
439 CHECK( -1 == VG_(log2)(0) );
440 CHECK( 0 == VG_(log2)(1) );
441 CHECK( 1 == VG_(log2)(2) );
442 CHECK( -1 == VG_(log2)(3) );
443 CHECK( 2 == VG_(log2)(4) );
444 CHECK( -1 == VG_(log2)(5) );
445 CHECK( -1 == VG_(log2)(6) );
446 CHECK( -1 == VG_(log2)(7) );
447 CHECK( 3 == VG_(log2)(8) );
448
449 CHECK( -1 == VG_(log2)( 15) );
450 CHECK( 4 == VG_(log2)( 16) );
451 CHECK( -1 == VG_(log2)( 17) );
452
453 CHECK( -1 == VG_(log2)( 63) );
454 CHECK( 6 == VG_(log2)( 64) );
455 CHECK( -1 == VG_(log2)( 65) );
456
457 CHECK( -1 == VG_(log2)(255) );
458 CHECK( 8 == VG_(log2)(256) );
459 CHECK( -1 == VG_(log2)(257) );
460
461 CHECK( -1 == VG_(log2)(65535) );
462 CHECK( 16 == VG_(log2)(65536) );
463 CHECK( -1 == VG_(log2)(65537) );
464
465 CHECK( -1 == VG_(log2)(16777215) );
466 CHECK( 24 == VG_(log2)(16777216) );
467 CHECK( -1 == VG_(log2)(16777217) );
468
469 CHECK( -1 == VG_(log2)(2147483647U) );
470 CHECK( 31 == VG_(log2)(2147483648U) );
471 CHECK( -1 == VG_(log2)(2147483649U) );
472
473 CHECK( -1 == VG_(log2)(4294967295U) ); // Max UInt
474 }
475
test_random(void)476 void test_random(void)
477 {
478 // Hmm, it's really hard to unit test a pseudo-random number generator.
479 // So no testing here, sorry.
480 }
481
482 //-----------------------------------------------------------------------
483 // main
484 //-----------------------------------------------------------------------
485
main(void)486 int main(void)
487 {
488 // Nb: the order of the tests is based on the order of the code in
489 // m_libcbase.c, except that macros defined in pub_tool_libcbase.h are
490 // tested first.
491
492 //--------------------------------------------------------------------
493 // pub_tool_libcbase.h macros
494 //--------------------------------------------------------------------
495 test_VG_STREQ();
496 test_VG_STREQN();
497 test_VG_IS_XYZ_ALIGNED();
498 test_VG_ROUND_et_al();
499
500 //--------------------------------------------------------------------
501 // Char functions
502 //--------------------------------------------------------------------
503 test_isspace();
504 test_isdigit();
505
506 //--------------------------------------------------------------------
507 // String-to-number functions
508 //--------------------------------------------------------------------
509 test_is_dec_digit();
510 test_is_hex_digit();
511 test_strtoll_and_strtod();
512
513 //--------------------------------------------------------------------
514 // String functions
515 //--------------------------------------------------------------------
516 // XXX: more todo: VG_(str_*)
517
518 //--------------------------------------------------------------------
519 // Mem functions
520 //--------------------------------------------------------------------
521 // XXX: todo: VG_(mem*)
522
523 //--------------------------------------------------------------------
524 // Miscellaneous functions
525 //--------------------------------------------------------------------
526 // XXX: todo: VG_(ssort)
527 test_log2();
528 test_random();
529
530 return 0;
531 }
532
533