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comparison: ucx/cx/compare.h

ucx/cx/compare.h

changeset 101
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parent 49
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equal deleted inserted replaced
100:d2bd73d28ff1 101:7b3a3130be44
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE. 26 * POSSIBILITY OF SUCH DAMAGE.
27 */ 27 */
28 /** 28 /**
29 * \file compare.h 29 * @file compare.h
30 * \brief A collection of simple compare functions. 30 * @brief A collection of simple compare functions.
31 * \author Mike Becker 31 * @author Mike Becker
32 * \author Olaf Wintermann 32 * @author Olaf Wintermann
33 * \copyright 2-Clause BSD License 33 * @copyright 2-Clause BSD License
34 */ 34 */
35 35
36 #ifndef UCX_COMPARE_H 36 #ifndef UCX_COMPARE_H
37 #define UCX_COMPARE_H 37 #define UCX_COMPARE_H
38 38
40 40
41 #ifdef __cplusplus 41 #ifdef __cplusplus
42 extern "C" { 42 extern "C" {
43 #endif 43 #endif
44 44
45 #ifndef CX_COMPARE_FUNC_DEFINED 45 /**
46 #define CX_COMPARE_FUNC_DEFINED 46 * A comparator function comparing two arbitrary values.
47 /** 47 *
48 * A comparator function comparing two collection elements. 48 * All functions from compare.h with the cx_cmp prefix are
49 */ 49 * compatible with this signature and can be used as
50 typedef int(*cx_compare_func)( 50 * compare function for collections, or other implementations
51 const void *left, 51 * that need to be type-agnostic.
52 const void *right 52 *
53 * For simple comparisons the cx_vcmp family of functions
54 * can be used, but they are NOT compatible with this function
55 * pointer.
56 */
57 cx_attr_nonnull
58 cx_attr_nodiscard
59 typedef int (*cx_compare_func)(
60 const void *left,
61 const void *right
53 ); 62 );
54 #endif // CX_COMPARE_FUNC_DEFINED
55 63
56 /** 64 /**
57 * Compares two integers of type int. 65 * Compares two integers of type int.
66 *
67 * @note the parameters deliberately have type @c void* to be
68 * compatible with #cx_compare_func without the need of a cast.
58 * 69 *
59 * @param i1 pointer to integer one 70 * @param i1 pointer to integer one
60 * @param i2 pointer to integer two 71 * @param i2 pointer to integer two
61 * @return -1, if *i1 is less than *i2, 0 if both are equal, 72 * @retval -1 if the left argument is less than the right argument
62 * 1 if *i1 is greater than *i2 73 * @retval 0 if both arguments are equal
63 */ 74 * @retval 1 if the left argument is greater than the right argument
75 */
76 cx_attr_nonnull
77 cx_attr_nodiscard
64 int cx_cmp_int(const void *i1, const void *i2); 78 int cx_cmp_int(const void *i1, const void *i2);
65 79
66 /** 80 /**
81 * Compares two ints.
82 *
83 * @param i1 integer one
84 * @param i2 integer two
85 * @retval -1 if the left argument is less than the right argument
86 * @retval 0 if both arguments are equal
87 * @retval 1 if the left argument is greater than the right argument
88 */
89 cx_attr_nodiscard
90 int cx_vcmp_int(int i1, int i2);
91
92 /**
67 * Compares two integers of type long int. 93 * Compares two integers of type long int.
94 *
95 * @note the parameters deliberately have type @c void* to be
96 * compatible with #cx_compare_func without the need of a cast.
68 * 97 *
69 * @param i1 pointer to long integer one 98 * @param i1 pointer to long integer one
70 * @param i2 pointer to long integer two 99 * @param i2 pointer to long integer two
71 * @return -1, if *i1 is less than *i2, 0 if both are equal, 100 * @retval -1 if the left argument is less than the right argument
72 * 1 if *i1 is greater than *i2 101 * @retval 0 if both arguments are equal
73 */ 102 * @retval 1 if the left argument is greater than the right argument
103 */
104 cx_attr_nonnull
105 cx_attr_nodiscard
74 int cx_cmp_longint(const void *i1, const void *i2); 106 int cx_cmp_longint(const void *i1, const void *i2);
75 107
76 /** 108 /**
109 * Compares two long ints.
110 *
111 * @param i1 long integer one
112 * @param i2 long integer two
113 * @retval -1 if the left argument is less than the right argument
114 * @retval 0 if both arguments are equal
115 * @retval 1 if the left argument is greater than the right argument
116 */
117 cx_attr_nodiscard
118 int cx_vcmp_longint(long int i1, long int i2);
119
120 /**
77 * Compares two integers of type long long. 121 * Compares two integers of type long long.
122 *
123 * @note the parameters deliberately have type @c void* to be
124 * compatible with #cx_compare_func without the need of a cast.
78 * 125 *
79 * @param i1 pointer to long long one 126 * @param i1 pointer to long long one
80 * @param i2 pointer to long long two 127 * @param i2 pointer to long long two
81 * @return -1, if *i1 is less than *i2, 0 if both are equal, 128 * @retval -1 if the left argument is less than the right argument
82 * 1 if *i1 is greater than *i2 129 * @retval 0 if both arguments are equal
83 */ 130 * @retval 1 if the left argument is greater than the right argument
131 */
132 cx_attr_nonnull
133 cx_attr_nodiscard
84 int cx_cmp_longlong(const void *i1, const void *i2); 134 int cx_cmp_longlong(const void *i1, const void *i2);
85 135
86 /** 136 /**
137 * Compares twolong long ints.
138 *
139 * @param i1 long long int one
140 * @param i2 long long int two
141 * @retval -1 if the left argument is less than the right argument
142 * @retval 0 if both arguments are equal
143 * @retval 1 if the left argument is greater than the right argument
144 */
145 cx_attr_nodiscard
146 int cx_vcmp_longlong(long long int i1, long long int i2);
147
148 /**
87 * Compares two integers of type int16_t. 149 * Compares two integers of type int16_t.
150 *
151 * @note the parameters deliberately have type @c void* to be
152 * compatible with #cx_compare_func without the need of a cast.
88 * 153 *
89 * @param i1 pointer to int16_t one 154 * @param i1 pointer to int16_t one
90 * @param i2 pointer to int16_t two 155 * @param i2 pointer to int16_t two
91 * @return -1, if *i1 is less than *i2, 0 if both are equal, 156 * @retval -1 if the left argument is less than the right argument
92 * 1 if *i1 is greater than *i2 157 * @retval 0 if both arguments are equal
93 */ 158 * @retval 1 if the left argument is greater than the right argument
159 */
160 cx_attr_nonnull
161 cx_attr_nodiscard
94 int cx_cmp_int16(const void *i1, const void *i2); 162 int cx_cmp_int16(const void *i1, const void *i2);
95 163
96 /** 164 /**
165 * Compares two integers of type int16_t.
166 *
167 * @param i1 int16_t one
168 * @param i2 int16_t two
169 * @retval -1 if the left argument is less than the right argument
170 * @retval 0 if both arguments are equal
171 * @retval 1 if the left argument is greater than the right argument
172 */
173 cx_attr_nodiscard
174 int cx_vcmp_int16(int16_t i1, int16_t i2);
175
176 /**
97 * Compares two integers of type int32_t. 177 * Compares two integers of type int32_t.
178 *
179 * @note the parameters deliberately have type @c void* to be
180 * compatible with #cx_compare_func without the need of a cast.
98 * 181 *
99 * @param i1 pointer to int32_t one 182 * @param i1 pointer to int32_t one
100 * @param i2 pointer to int32_t two 183 * @param i2 pointer to int32_t two
101 * @return -1, if *i1 is less than *i2, 0 if both are equal, 184 * @retval -1 if the left argument is less than the right argument
102 * 1 if *i1 is greater than *i2 185 * @retval 0 if both arguments are equal
103 */ 186 * @retval 1 if the left argument is greater than the right argument
187 */
188 cx_attr_nonnull
189 cx_attr_nodiscard
104 int cx_cmp_int32(const void *i1, const void *i2); 190 int cx_cmp_int32(const void *i1, const void *i2);
105 191
106 /** 192 /**
193 * Compares two integers of type int32_t.
194 *
195 * @param i1 int32_t one
196 * @param i2 int32_t two
197 * @retval -1 if the left argument is less than the right argument
198 * @retval 0 if both arguments are equal
199 * @retval 1 if the left argument is greater than the right argument
200 */
201 cx_attr_nodiscard
202 int cx_vcmp_int32(int32_t i1, int32_t i2);
203
204 /**
107 * Compares two integers of type int64_t. 205 * Compares two integers of type int64_t.
206 *
207 * @note the parameters deliberately have type @c void* to be
208 * compatible with #cx_compare_func without the need of a cast.
108 * 209 *
109 * @param i1 pointer to int64_t one 210 * @param i1 pointer to int64_t one
110 * @param i2 pointer to int64_t two 211 * @param i2 pointer to int64_t two
111 * @return -1, if *i1 is less than *i2, 0 if both are equal, 212 * @retval -1 if the left argument is less than the right argument
112 * 1 if *i1 is greater than *i2 213 * @retval 0 if both arguments are equal
113 */ 214 * @retval 1 if the left argument is greater than the right argument
215 */
216 cx_attr_nonnull
217 cx_attr_nodiscard
114 int cx_cmp_int64(const void *i1, const void *i2); 218 int cx_cmp_int64(const void *i1, const void *i2);
115 219
116 /** 220 /**
221 * Compares two integers of type int64_t.
222 *
223 * @param i1 int64_t one
224 * @param i2 int64_t two
225 * @retval -1 if the left argument is less than the right argument
226 * @retval 0 if both arguments are equal
227 * @retval 1 if the left argument is greater than the right argument
228 */
229 cx_attr_nodiscard
230 int cx_vcmp_int64(int64_t i1, int64_t i2);
231
232 /**
117 * Compares two integers of type unsigned int. 233 * Compares two integers of type unsigned int.
234 *
235 * @note the parameters deliberately have type @c void* to be
236 * compatible with #cx_compare_func without the need of a cast.
118 * 237 *
119 * @param i1 pointer to unsigned integer one 238 * @param i1 pointer to unsigned integer one
120 * @param i2 pointer to unsigned integer two 239 * @param i2 pointer to unsigned integer two
121 * @return -1, if *i1 is less than *i2, 0 if both are equal, 240 * @retval -1 if the left argument is less than the right argument
122 * 1 if *i1 is greater than *i2 241 * @retval 0 if both arguments are equal
123 */ 242 * @retval 1 if the left argument is greater than the right argument
243 */
244 cx_attr_nonnull
245 cx_attr_nodiscard
124 int cx_cmp_uint(const void *i1, const void *i2); 246 int cx_cmp_uint(const void *i1, const void *i2);
125 247
126 /** 248 /**
249 * Compares two unsigned ints.
250 *
251 * @param i1 unsigned integer one
252 * @param i2 unsigned integer two
253 * @retval -1 if the left argument is less than the right argument
254 * @retval 0 if both arguments are equal
255 * @retval 1 if the left argument is greater than the right argument
256 */
257 cx_attr_nodiscard
258 int cx_vcmp_uint(unsigned int i1, unsigned int i2);
259
260 /**
127 * Compares two integers of type unsigned long int. 261 * Compares two integers of type unsigned long int.
262 *
263 * @note the parameters deliberately have type @c void* to be
264 * compatible with #cx_compare_func without the need of a cast.
128 * 265 *
129 * @param i1 pointer to unsigned long integer one 266 * @param i1 pointer to unsigned long integer one
130 * @param i2 pointer to unsigned long integer two 267 * @param i2 pointer to unsigned long integer two
131 * @return -1, if *i1 is less than *i2, 0 if both are equal, 268 * @retval -1 if the left argument is less than the right argument
132 * 1 if *i1 is greater than *i2 269 * @retval 0 if both arguments are equal
133 */ 270 * @retval 1 if the left argument is greater than the right argument
271 */
272 cx_attr_nonnull
273 cx_attr_nodiscard
134 int cx_cmp_ulongint(const void *i1, const void *i2); 274 int cx_cmp_ulongint(const void *i1, const void *i2);
135 275
136 /** 276 /**
277 * Compares two unsigned long ints.
278 *
279 * @param i1 unsigned long integer one
280 * @param i2 unsigned long integer two
281 * @retval -1 if the left argument is less than the right argument
282 * @retval 0 if both arguments are equal
283 * @retval 1 if the left argument is greater than the right argument
284 */
285 cx_attr_nodiscard
286 int cx_vcmp_ulongint(unsigned long int i1, unsigned long int i2);
287
288 /**
137 * Compares two integers of type unsigned long long. 289 * Compares two integers of type unsigned long long.
290 *
291 * @note the parameters deliberately have type @c void* to be
292 * compatible with #cx_compare_func without the need of a cast.
138 * 293 *
139 * @param i1 pointer to unsigned long long one 294 * @param i1 pointer to unsigned long long one
140 * @param i2 pointer to unsigned long long two 295 * @param i2 pointer to unsigned long long two
141 * @return -1, if *i1 is less than *i2, 0 if both are equal, 296 * @retval -1 if the left argument is less than the right argument
142 * 1 if *i1 is greater than *i2 297 * @retval 0 if both arguments are equal
143 */ 298 * @retval 1 if the left argument is greater than the right argument
299 */
300 cx_attr_nonnull
301 cx_attr_nodiscard
144 int cx_cmp_ulonglong(const void *i1, const void *i2); 302 int cx_cmp_ulonglong(const void *i1, const void *i2);
145 303
146 /** 304 /**
305 * Compares two unsigned long long ints.
306 *
307 * @param i1 unsigned long long one
308 * @param i2 unsigned long long two
309 * @retval -1 if the left argument is less than the right argument
310 * @retval 0 if both arguments are equal
311 * @retval 1 if the left argument is greater than the right argument
312 */
313 cx_attr_nodiscard
314 int cx_vcmp_ulonglong(unsigned long long int i1, unsigned long long int i2);
315
316 /**
147 * Compares two integers of type uint16_t. 317 * Compares two integers of type uint16_t.
318 *
319 * @note the parameters deliberately have type @c void* to be
320 * compatible with #cx_compare_func without the need of a cast.
148 * 321 *
149 * @param i1 pointer to uint16_t one 322 * @param i1 pointer to uint16_t one
150 * @param i2 pointer to uint16_t two 323 * @param i2 pointer to uint16_t two
151 * @return -1, if *i1 is less than *i2, 0 if both are equal, 324 * @retval -1 if the left argument is less than the right argument
152 * 1 if *i1 is greater than *i2 325 * @retval 0 if both arguments are equal
153 */ 326 * @retval 1 if the left argument is greater than the right argument
327 */
328 cx_attr_nonnull
329 cx_attr_nodiscard
154 int cx_cmp_uint16(const void *i1, const void *i2); 330 int cx_cmp_uint16(const void *i1, const void *i2);
155 331
156 /** 332 /**
333 * Compares two integers of type uint16_t.
334 *
335 * @param i1 uint16_t one
336 * @param i2 uint16_t two
337 * @retval -1 if the left argument is less than the right argument
338 * @retval 0 if both arguments are equal
339 * @retval 1 if the left argument is greater than the right argument
340 */
341 cx_attr_nodiscard
342 int cx_vcmp_uint16(uint16_t i1, uint16_t i2);
343
344 /**
157 * Compares two integers of type uint32_t. 345 * Compares two integers of type uint32_t.
346 *
347 * @note the parameters deliberately have type @c void* to be
348 * compatible with #cx_compare_func without the need of a cast.
158 * 349 *
159 * @param i1 pointer to uint32_t one 350 * @param i1 pointer to uint32_t one
160 * @param i2 pointer to uint32_t two 351 * @param i2 pointer to uint32_t two
161 * @return -1, if *i1 is less than *i2, 0 if both are equal, 352 * @retval -1 if the left argument is less than the right argument
162 * 1 if *i1 is greater than *i2 353 * @retval 0 if both arguments are equal
163 */ 354 * @retval 1 if the left argument is greater than the right argument
355 */
356 cx_attr_nonnull
357 cx_attr_nodiscard
164 int cx_cmp_uint32(const void *i1, const void *i2); 358 int cx_cmp_uint32(const void *i1, const void *i2);
165 359
166 /** 360 /**
361 * Compares two integers of type uint32_t.
362 *
363 * @param i1 uint32_t one
364 * @param i2 uint32_t two
365 * @retval -1 if the left argument is less than the right argument
366 * @retval 0 if both arguments are equal
367 * @retval 1 if the left argument is greater than the right argument
368 */
369 cx_attr_nodiscard
370 int cx_vcmp_uint32(uint32_t i1, uint32_t i2);
371
372 /**
167 * Compares two integers of type uint64_t. 373 * Compares two integers of type uint64_t.
374 *
375 * @note the parameters deliberately have type @c void* to be
376 * compatible with #cx_compare_func without the need of a cast.
168 * 377 *
169 * @param i1 pointer to uint64_t one 378 * @param i1 pointer to uint64_t one
170 * @param i2 pointer to uint64_t two 379 * @param i2 pointer to uint64_t two
171 * @return -1, if *i1 is less than *i2, 0 if both are equal, 380 * @retval -1 if the left argument is less than the right argument
172 * 1 if *i1 is greater than *i2 381 * @retval 0 if both arguments are equal
173 */ 382 * @retval 1 if the left argument is greater than the right argument
383 */
384 cx_attr_nonnull
385 cx_attr_nodiscard
174 int cx_cmp_uint64(const void *i1, const void *i2); 386 int cx_cmp_uint64(const void *i1, const void *i2);
175 387
176 /** 388 /**
389 * Compares two integers of type uint64_t.
390 *
391 * @param i1 uint64_t one
392 * @param i2 uint64_t two
393 * @retval -1 if the left argument is less than the right argument
394 * @retval 0 if both arguments are equal
395 * @retval 1 if the left argument is greater than the right argument
396 */
397 cx_attr_nodiscard
398 int cx_vcmp_uint64(uint64_t i1, uint64_t i2);
399
400 /**
177 * Compares two real numbers of type float with precision 1e-6f. 401 * Compares two real numbers of type float with precision 1e-6f.
402 *
403 * @note the parameters deliberately have type @c void* to be
404 * compatible with #cx_compare_func without the need of a cast.
178 * 405 *
179 * @param f1 pointer to float one 406 * @param f1 pointer to float one
180 * @param f2 pointer to float two 407 * @param f2 pointer to float two
181 * @return -1, if *f1 is less than *f2, 0 if both are equal, 408 * @retval -1 if the left argument is less than the right argument
182 * 1 if *f1 is greater than *f2 409 * @retval 0 if both arguments are equal
183 */ 410 * @retval 1 if the left argument is greater than the right argument
184 411 */
412 cx_attr_nonnull
413 cx_attr_nodiscard
185 int cx_cmp_float(const void *f1, const void *f2); 414 int cx_cmp_float(const void *f1, const void *f2);
186 415
187 /** 416 /**
417 * Compares two real numbers of type float with precision 1e-6f.
418 *
419 * @param f1 float one
420 * @param f2 float two
421 * @retval -1 if the left argument is less than the right argument
422 * @retval 0 if both arguments are equal
423 * @retval 1 if the left argument is greater than the right argument
424 */
425 cx_attr_nodiscard
426 int cx_vcmp_float(float f1, float f2);
427
428 /**
188 * Compares two real numbers of type double with precision 1e-14. 429 * Compares two real numbers of type double with precision 1e-14.
430 *
431 * @note the parameters deliberately have type @c void* to be
432 * compatible with #cx_compare_func without the need of a cast.
189 * 433 *
190 * @param d1 pointer to double one 434 * @param d1 pointer to double one
191 * @param d2 pointer to double two 435 * @param d2 pointer to double two
192 * @return -1, if *d1 is less than *d2, 0 if both are equal, 436 * @retval -1 if the left argument is less than the right argument
193 * 1 if *d1 is greater than *d2 437 * @retval 0 if both arguments are equal
194 */ 438 * @retval 1 if the left argument is greater than the right argument
195 int cx_cmp_double( 439 */
196 const void *d1, 440 cx_attr_nonnull
197 const void *d2 441 cx_attr_nodiscard
198 ); 442 int cx_cmp_double(const void *d1, const void *d2);
443
444 /**
445 * Convenience function
446 *
447 * @param d1 double one
448 * @param d2 double two
449 * @retval -1 if the left argument is less than the right argument
450 * @retval 0 if both arguments are equal
451 * @retval 1 if the left argument is greater than the right argument
452 */
453 cx_attr_nodiscard
454 int cx_vcmp_double(double d1, double d2);
199 455
200 /** 456 /**
201 * Compares the integer representation of two pointers. 457 * Compares the integer representation of two pointers.
458 *
459 * @note the parameters deliberately have type @c void* to be
460 * compatible with #cx_compare_func without the need of a cast.
202 * 461 *
203 * @param ptr1 pointer to pointer one (const intptr_t*) 462 * @param ptr1 pointer to pointer one (const intptr_t*)
204 * @param ptr2 pointer to pointer two (const intptr_t*) 463 * @param ptr2 pointer to pointer two (const intptr_t*)
205 * @return -1 if *ptr1 is less than *ptr2, 0 if both are equal, 464 * @retval -1 if the left argument is less than the right argument
206 * 1 if *ptr1 is greater than *ptr2 465 * @retval 0 if both arguments are equal
207 */ 466 * @retval 1 if the left argument is greater than the right argument
208 int cx_cmp_intptr( 467 */
209 const void *ptr1, 468 cx_attr_nonnull
210 const void *ptr2 469 cx_attr_nodiscard
211 ); 470 int cx_cmp_intptr(const void *ptr1, const void *ptr2);
471
472 /**
473 * Compares the integer representation of two pointers.
474 *
475 * @param ptr1 pointer one
476 * @param ptr2 pointer two
477 * @retval -1 if the left argument is less than the right argument
478 * @retval 0 if both arguments are equal
479 * @retval 1 if the left argument is greater than the right argument
480 */
481 cx_attr_nodiscard
482 int cx_vcmp_intptr(intptr_t ptr1, intptr_t ptr2);
212 483
213 /** 484 /**
214 * Compares the unsigned integer representation of two pointers. 485 * Compares the unsigned integer representation of two pointers.
486 *
487 * @note the parameters deliberately have type @c void* to be
488 * compatible with #cx_compare_func without the need of a cast.
215 * 489 *
216 * @param ptr1 pointer to pointer one (const uintptr_t*) 490 * @param ptr1 pointer to pointer one (const uintptr_t*)
217 * @param ptr2 pointer to pointer two (const uintptr_t*) 491 * @param ptr2 pointer to pointer two (const uintptr_t*)
218 * @return -1 if *ptr1 is less than *ptr2, 0 if both are equal, 492 * @retval -1 if the left argument is less than the right argument
219 * 1 if *ptr1 is greater than *ptr2 493 * @retval 0 if both arguments are equal
220 */ 494 * @retval 1 if the left argument is greater than the right argument
221 int cx_cmp_uintptr( 495 */
222 const void *ptr1, 496 cx_attr_nonnull
223 const void *ptr2 497 cx_attr_nodiscard
224 ); 498 int cx_cmp_uintptr(const void *ptr1, const void *ptr2);
225 499
226 /** 500 /**
227 * Compares the pointers specified in the arguments without de-referencing. 501 * Compares the unsigned integer representation of two pointers.
228 * 502 *
229 * @param ptr1 pointer one 503 * @param ptr1 pointer one
230 * @param ptr2 pointer two 504 * @param ptr2 pointer two
231 * @return -1 if ptr1 is less than ptr2, 0 if both are equal, 505 * @retval -1 if the left argument is less than the right argument
232 * 1 if ptr1 is greater than ptr2 506 * @retval 0 if both arguments are equal
233 */ 507 * @retval 1 if the left argument is greater than the right argument
234 int cx_cmp_ptr( 508 */
235 const void *ptr1, 509 cx_attr_nodiscard
236 const void *ptr2 510 int cx_vcmp_uintptr(uintptr_t ptr1, uintptr_t ptr2);
237 ); 511
512 /**
513 * Compares the pointers specified in the arguments without de-referencing.
514 *
515 * @param ptr1 pointer one
516 * @param ptr2 pointer two
517 * @retval -1 if the left argument is less than the right argument
518 * @retval 0 if both arguments are equal
519 * @retval 1 if the left argument is greater than the right argument
520 */
521 cx_attr_nonnull
522 cx_attr_nodiscard
523 int cx_cmp_ptr(const void *ptr1, const void *ptr2);
238 524
239 #ifdef __cplusplus 525 #ifdef __cplusplus
240 } // extern "C" 526 } // extern "C"
241 #endif 527 #endif
242 528

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