Thu, 03 Oct 2019 11:15:48 +0200
fixes two bugs: clone to uninitialized array and missing return in ucx_array_ensurecap()
universe@103 | 1 | /* |
universe@103 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
universe@103 | 3 | * |
universe@334 | 4 | * Copyright 2019 Mike Becker, Olaf Wintermann All rights reserved. |
universe@103 | 5 | * |
universe@103 | 6 | * Redistribution and use in source and binary forms, with or without |
universe@103 | 7 | * modification, are permitted provided that the following conditions are met: |
universe@103 | 8 | * |
universe@103 | 9 | * 1. Redistributions of source code must retain the above copyright |
universe@103 | 10 | * notice, this list of conditions and the following disclaimer. |
universe@103 | 11 | * |
universe@103 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
universe@103 | 13 | * notice, this list of conditions and the following disclaimer in the |
universe@103 | 14 | * documentation and/or other materials provided with the distribution. |
universe@103 | 15 | * |
universe@103 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
universe@103 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
universe@103 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
universe@103 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
universe@103 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
universe@103 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
universe@103 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
universe@103 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
universe@103 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
universe@103 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
universe@103 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
universe@103 | 27 | */ |
universe@103 | 28 | |
universe@345 | 29 | #define _GNU_SOURCE /* we want to use qsort_r(), if available */ |
olaf@348 | 30 | #define __STDC_WANT_LIB_EXT1__ 1 /* use qsort_s, if available */ |
olaf@348 | 31 | |
universe@345 | 32 | |
universe@334 | 33 | #include "ucx/array.h" |
universe@336 | 34 | #include "ucx/utils.h" |
universe@4 | 35 | |
universe@336 | 36 | #include <string.h> |
universe@345 | 37 | #include <stdlib.h> |
universe@355 | 38 | #include <errno.h> |
universe@345 | 39 | |
universe@345 | 40 | #ifndef UCX_ARRAY_DISABLE_QSORT |
universe@346 | 41 | #ifdef __GLIBC__ |
universe@345 | 42 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8) |
universe@345 | 43 | #define ucx_array_sort_impl qsort_r |
universe@345 | 44 | #endif /* glibc version >= 2.8 */ |
universe@346 | 45 | #elif /* not __GLIBC__ */ defined(__APPLE__) || defined(__FreeBSD__) |
universe@345 | 46 | #define ucx_array_sort_impl ucx_qsort_r |
universe@345 | 47 | #define USE_UCX_QSORT_R |
olaf@348 | 48 | #elif /* not (__APPLE || __FreeBSD__) */ defined(__sun) |
olaf@348 | 49 | #if __STDC_VERSION__ >= 201112L |
olaf@348 | 50 | #define ucx_array_sort_impl qsort_s |
olaf@348 | 51 | #endif |
olaf@348 | 52 | #endif /* __GLIBC__, __APLE__, __FreeBSD__, __sun */ |
universe@345 | 53 | #endif /* UCX_ARRAY_DISABLE_QSORT */ |
universe@345 | 54 | |
universe@345 | 55 | #ifndef ucx_array_sort_impl |
universe@345 | 56 | #define ucx_array_sort_impl ucx_mergesort |
universe@345 | 57 | #endif |
universe@334 | 58 | |
universe@354 | 59 | static int ucx_array_ensurecap(UcxArray *array, size_t reqcap) { |
universe@354 | 60 | size_t required_capacity = array->capacity; |
universe@354 | 61 | while (reqcap > required_capacity) { |
universe@354 | 62 | if (required_capacity * 2 < required_capacity) |
universe@354 | 63 | return 1; |
universe@354 | 64 | required_capacity <<= 1; |
universe@354 | 65 | } |
universe@354 | 66 | if (ucx_array_reserve(array, required_capacity)) { |
universe@354 | 67 | return 1; |
universe@354 | 68 | } |
universe@357 | 69 | return 0; |
universe@354 | 70 | } |
universe@354 | 71 | |
universe@355 | 72 | int ucx_array_util_set_a(UcxAllocator* alloc, void** array, size_t* capacity, |
universe@355 | 73 | size_t elmsize, size_t index, ...) { |
universe@355 | 74 | |
universe@355 | 75 | if(!alloc || !capacity || !array) { |
universe@355 | 76 | errno = EINVAL; |
universe@355 | 77 | return 1; |
universe@355 | 78 | } |
universe@355 | 79 | |
universe@355 | 80 | size_t newcapacity = *capacity; |
universe@355 | 81 | while(index >= newcapacity) { |
universe@355 | 82 | if(ucx_szmul(newcapacity, 2, &newcapacity)) { |
universe@355 | 83 | errno = EOVERFLOW; |
universe@355 | 84 | return 1; |
universe@355 | 85 | } |
universe@355 | 86 | } |
universe@355 | 87 | |
universe@355 | 88 | size_t memlen, offset; |
universe@355 | 89 | if(ucx_szmul(newcapacity, elmsize, &memlen)) { |
universe@355 | 90 | errno = EOVERFLOW; |
universe@355 | 91 | return 1; |
universe@355 | 92 | } |
universe@355 | 93 | /* we don't need to check index*elmsize - it is smaller than memlen */ |
universe@355 | 94 | |
universe@355 | 95 | |
universe@355 | 96 | void* newptr = alrealloc(alloc, *array, memlen); |
universe@355 | 97 | if(newptr == NULL) { |
universe@355 | 98 | errno = ENOMEM; /* we cannot assume that every allocator sets this */ |
universe@355 | 99 | return 1; |
universe@355 | 100 | } |
universe@355 | 101 | *array = newptr; |
universe@355 | 102 | *capacity = newcapacity; |
universe@355 | 103 | |
universe@355 | 104 | |
universe@355 | 105 | char* dest = *array; |
universe@355 | 106 | dest += elmsize*index; |
universe@355 | 107 | |
universe@355 | 108 | va_list ap; |
universe@355 | 109 | va_start(ap, index); |
universe@355 | 110 | int elem = va_arg(ap, int); |
universe@355 | 111 | memcpy(dest, &elem, elmsize); |
universe@355 | 112 | va_end(ap); |
universe@355 | 113 | |
universe@355 | 114 | return 0; |
universe@355 | 115 | } |
universe@355 | 116 | |
universe@356 | 117 | UcxArray* ucx_array_new(size_t capacity, size_t elemsize) { |
universe@334 | 118 | return ucx_array_new_a(capacity, elemsize, ucx_default_allocator()); |
universe@125 | 119 | } |
universe@125 | 120 | |
universe@356 | 121 | UcxArray* ucx_array_new_a(size_t capacity, size_t elemsize, |
universe@334 | 122 | UcxAllocator* allocator) { |
universe@356 | 123 | UcxArray* array = almalloc(allocator, sizeof(UcxArray)); |
universe@356 | 124 | if(array) { |
universe@356 | 125 | ucx_array_init_a(array, capacity, elemsize, allocator); |
universe@336 | 126 | } |
universe@334 | 127 | return array; |
universe@18 | 128 | } |
universe@18 | 129 | |
universe@356 | 130 | void ucx_array_init(UcxArray* array, size_t capacity, size_t elemsize) { |
universe@356 | 131 | ucx_array_init_a(array, capacity, elemsize, ucx_default_allocator()); |
universe@356 | 132 | } |
universe@356 | 133 | |
universe@356 | 134 | void ucx_array_init_a(UcxArray* array, size_t capacity, size_t elemsize, |
universe@356 | 135 | UcxAllocator* allocator) { |
universe@18 | 136 | |
universe@356 | 137 | array->allocator = allocator; |
universe@356 | 138 | array->elemsize = elemsize; |
universe@356 | 139 | array->size = 0; |
universe@356 | 140 | array->data = alcalloc(allocator, capacity, elemsize); |
universe@336 | 141 | |
universe@356 | 142 | if (array->data) { |
universe@356 | 143 | array->capacity = capacity; |
universe@336 | 144 | } else { |
universe@356 | 145 | array->capacity = 0; |
universe@356 | 146 | } |
universe@356 | 147 | } |
universe@356 | 148 | |
universe@356 | 149 | int ucx_array_clone(UcxArray* dest, UcxArray const* src) { |
universe@356 | 150 | if (ucx_array_ensurecap(dest, src->capacity)) { |
universe@356 | 151 | return 1; |
universe@336 | 152 | } |
universe@336 | 153 | |
universe@356 | 154 | dest->elemsize = src->elemsize; |
universe@356 | 155 | dest->size = src->size; |
universe@356 | 156 | |
universe@356 | 157 | if (dest->data) { |
universe@356 | 158 | memcpy(dest->data, src->data, src->size*src->elemsize); |
universe@356 | 159 | } |
universe@356 | 160 | |
universe@356 | 161 | return 0; |
universe@18 | 162 | } |
universe@18 | 163 | |
universe@356 | 164 | int ucx_array_equals(UcxArray const *array1, UcxArray const *array2, |
universe@334 | 165 | cmp_func cmpfnc, void* data) { |
universe@334 | 166 | |
universe@356 | 167 | if (array1->size != array2->size || array1->elemsize != array2->elemsize) { |
universe@336 | 168 | return 0; |
universe@336 | 169 | } else { |
universe@356 | 170 | if (array1->size == 0) |
universe@336 | 171 | return 1; |
universe@336 | 172 | |
universe@356 | 173 | size_t elemsize; |
universe@336 | 174 | if (cmpfnc == NULL) { |
universe@336 | 175 | cmpfnc = ucx_cmp_mem; |
universe@356 | 176 | elemsize = array1->elemsize; |
universe@356 | 177 | data = &elemsize; |
universe@336 | 178 | } |
universe@336 | 179 | |
universe@356 | 180 | for (size_t i = 0 ; i < array1->size ; i++) { |
universe@336 | 181 | int r = cmpfnc( |
universe@336 | 182 | ucx_array_at(array1, i), |
universe@336 | 183 | ucx_array_at(array2, i), |
universe@336 | 184 | data); |
universe@336 | 185 | if (r != 0) |
universe@336 | 186 | return 0; |
universe@336 | 187 | } |
universe@336 | 188 | return 1; |
universe@336 | 189 | } |
universe@125 | 190 | } |
universe@125 | 191 | |
universe@353 | 192 | void ucx_array_destroy(UcxArray *array) { |
universe@356 | 193 | if(array->data) |
universe@356 | 194 | alfree(array->allocator, array->data); |
universe@336 | 195 | array->data = NULL; |
universe@336 | 196 | array->capacity = array->size = 0; |
universe@8 | 197 | } |
universe@8 | 198 | |
universe@356 | 199 | void ucx_array_free(UcxArray *array) { |
universe@356 | 200 | ucx_array_destroy(array); |
universe@356 | 201 | alfree(array->allocator, array); |
universe@356 | 202 | } |
universe@356 | 203 | |
universe@354 | 204 | int ucx_array_append_from(UcxArray *array, void *data, size_t count) { |
universe@354 | 205 | if (ucx_array_ensurecap(array, array->size + count)) |
universe@354 | 206 | return 1; |
universe@354 | 207 | |
universe@356 | 208 | void* dest = ucx_array_at(array, array->size); |
universe@354 | 209 | if (data) { |
universe@354 | 210 | memcpy(dest, data, array->elemsize*count); |
universe@354 | 211 | } else { |
universe@354 | 212 | memset(dest, 0, array->elemsize*count); |
universe@354 | 213 | } |
universe@354 | 214 | array->size += count; |
universe@354 | 215 | |
universe@354 | 216 | return 0; |
universe@354 | 217 | } |
universe@354 | 218 | |
universe@354 | 219 | int ucx_array_prepend_from(UcxArray *array, void *data, size_t count) { |
universe@354 | 220 | if (ucx_array_ensurecap(array, array->size + count)) |
universe@354 | 221 | return 1; |
universe@354 | 222 | |
universe@354 | 223 | if (array->size > 0) { |
universe@356 | 224 | void *dest = ucx_array_at(array, count); |
universe@354 | 225 | memmove(dest, array->data, array->elemsize*array->size); |
universe@336 | 226 | } |
universe@336 | 227 | |
universe@336 | 228 | if (data) { |
universe@354 | 229 | memcpy(array->data, data, array->elemsize*count); |
universe@336 | 230 | } else { |
universe@354 | 231 | memset(array->data, 0, array->elemsize*count); |
universe@354 | 232 | } |
universe@354 | 233 | array->size += count; |
universe@354 | 234 | |
universe@354 | 235 | return 0; |
universe@354 | 236 | } |
universe@354 | 237 | |
universe@354 | 238 | int ucx_array_set_from(UcxArray *array, size_t index, |
universe@354 | 239 | void *data, size_t count) { |
universe@354 | 240 | if (ucx_array_ensurecap(array, index + count)) |
universe@354 | 241 | return 1; |
universe@354 | 242 | |
universe@354 | 243 | if (index+count > array->size) { |
universe@354 | 244 | array->size = index+count; |
universe@354 | 245 | } |
universe@354 | 246 | |
universe@356 | 247 | void *dest = ucx_array_at(array, index); |
universe@354 | 248 | if (data) { |
universe@354 | 249 | memcpy(dest, data, array->elemsize*count); |
universe@354 | 250 | } else { |
universe@354 | 251 | memset(dest, 0, array->elemsize*count); |
universe@336 | 252 | } |
universe@336 | 253 | |
universe@336 | 254 | return 0; |
universe@211 | 255 | } |
universe@211 | 256 | |
universe@354 | 257 | int ucx_array_appendv(UcxArray *array, ...) { |
universe@354 | 258 | va_list ap; |
universe@354 | 259 | va_start(ap, array); |
universe@354 | 260 | int elem = va_arg(ap, int); |
universe@354 | 261 | int ret = ucx_array_append_from(array, &elem, 1); |
universe@354 | 262 | va_end(ap); |
universe@354 | 263 | return ret; |
universe@125 | 264 | } |
universe@125 | 265 | |
universe@354 | 266 | int ucx_array_prependv(UcxArray *array, ...) { |
universe@354 | 267 | va_list ap; |
universe@354 | 268 | va_start(ap, array); |
universe@354 | 269 | int elem = va_arg(ap, int); |
universe@354 | 270 | int ret = ucx_array_prepend_from(array, &elem, 1); |
universe@354 | 271 | va_end(ap); |
universe@354 | 272 | return ret; |
universe@354 | 273 | } |
universe@354 | 274 | |
universe@354 | 275 | int ucx_array_setv(UcxArray *array, size_t index, ...) { |
universe@354 | 276 | va_list ap; |
universe@354 | 277 | va_start(ap, index); |
universe@354 | 278 | int elem = va_arg(ap, int); |
universe@354 | 279 | int ret = ucx_array_set_from(array, index, &elem, 1); |
universe@354 | 280 | va_end(ap); |
universe@354 | 281 | return ret; |
universe@337 | 282 | } |
universe@337 | 283 | |
universe@334 | 284 | int ucx_array_concat(UcxArray *array1, const UcxArray *array2) { |
universe@336 | 285 | |
universe@336 | 286 | if (array1->elemsize != array2->elemsize) |
universe@336 | 287 | return 1; |
universe@336 | 288 | |
universe@336 | 289 | size_t capacity = array1->capacity+array2->capacity; |
universe@336 | 290 | |
universe@336 | 291 | if (array1->capacity < capacity) { |
universe@336 | 292 | if (ucx_array_reserve(array1, capacity)) { |
universe@336 | 293 | return 1; |
universe@336 | 294 | } |
universe@336 | 295 | } |
universe@336 | 296 | |
universe@356 | 297 | void* dest = ucx_array_at(array1, array1->size); |
universe@336 | 298 | memcpy(dest, array2->data, array2->size*array2->elemsize); |
universe@336 | 299 | |
universe@336 | 300 | array1->size += array2->size; |
universe@336 | 301 | |
universe@336 | 302 | return 0; |
universe@7 | 303 | } |
universe@7 | 304 | |
universe@356 | 305 | void *ucx_array_at(UcxArray const *array, size_t index) { |
universe@356 | 306 | char* memory = array->data; |
universe@356 | 307 | char* loc = memory + index*array->elemsize; |
universe@336 | 308 | return loc; |
universe@125 | 309 | } |
universe@125 | 310 | |
universe@356 | 311 | size_t ucx_array_find(UcxArray const *array, void *elem, |
universe@356 | 312 | cmp_func cmpfnc, void *data) { |
universe@7 | 313 | |
universe@356 | 314 | size_t elemsize; |
universe@336 | 315 | if (cmpfnc == NULL) { |
universe@336 | 316 | cmpfnc = ucx_cmp_mem; |
universe@356 | 317 | elemsize = array->elemsize; |
universe@356 | 318 | data = &elemsize; |
universe@336 | 319 | } |
universe@336 | 320 | |
universe@356 | 321 | if (array->size > 0) { |
universe@356 | 322 | for (size_t i = 0 ; i < array->size ; i++) { |
universe@336 | 323 | void* ptr = ucx_array_at(array, i); |
universe@336 | 324 | if (cmpfnc(ptr, elem, data) == 0) { |
universe@336 | 325 | return i; |
universe@336 | 326 | } |
universe@336 | 327 | } |
universe@356 | 328 | return array->size; |
universe@336 | 329 | } else { |
universe@336 | 330 | return 0; |
universe@336 | 331 | } |
universe@7 | 332 | } |
universe@7 | 333 | |
universe@356 | 334 | int ucx_array_contains(UcxArray const *array, void *elem, |
universe@356 | 335 | cmp_func cmpfnc, void *data) { |
universe@356 | 336 | return ucx_array_find(array, elem, cmpfnc, data) != array->size; |
universe@7 | 337 | } |
universe@7 | 338 | |
universe@345 | 339 | static void ucx_mergesort_merge(void *arrdata,size_t elemsize, |
universe@345 | 340 | cmp_func cmpfnc, void *data, |
universe@336 | 341 | size_t start, size_t mid, size_t end) { |
universe@336 | 342 | |
universe@345 | 343 | char* array = arrdata; |
universe@345 | 344 | |
universe@336 | 345 | size_t rightstart = mid + 1; |
universe@336 | 346 | |
universe@345 | 347 | if (cmpfnc(array + mid*elemsize, |
universe@345 | 348 | array + rightstart*elemsize, data) <= 0) { |
universe@336 | 349 | /* already sorted */ |
universe@336 | 350 | return; |
universe@336 | 351 | } |
universe@336 | 352 | |
universe@342 | 353 | /* we need memory for one element */ |
universe@345 | 354 | void *value = malloc(elemsize); |
universe@336 | 355 | |
universe@336 | 356 | while (start <= mid && rightstart <= end) { |
universe@345 | 357 | if (cmpfnc(array + start*elemsize, |
universe@345 | 358 | array + rightstart*elemsize, data) <= 0) { |
universe@336 | 359 | start++; |
universe@336 | 360 | } else { |
universe@342 | 361 | /* save the value from the right */ |
universe@345 | 362 | memcpy(value, array + rightstart*elemsize, elemsize); |
universe@336 | 363 | |
universe@342 | 364 | /* shift all left elements one element to the right */ |
universe@336 | 365 | size_t shiftcount = rightstart-start; |
universe@345 | 366 | void *startptr = array + start*elemsize; |
universe@345 | 367 | void *dest = array + (start+1)*elemsize; |
universe@345 | 368 | memmove(dest, startptr, shiftcount*elemsize); |
universe@336 | 369 | |
universe@342 | 370 | /* bring the first value from the right to the left */ |
universe@345 | 371 | memcpy(startptr, value, elemsize); |
universe@336 | 372 | |
universe@336 | 373 | start++; |
universe@336 | 374 | mid++; |
universe@336 | 375 | rightstart++; |
universe@336 | 376 | } |
universe@336 | 377 | } |
universe@336 | 378 | |
universe@342 | 379 | /* free the temporary memory */ |
universe@336 | 380 | free(value); |
universe@336 | 381 | } |
universe@336 | 382 | |
universe@345 | 383 | static void ucx_mergesort_impl(void *arrdata, size_t elemsize, |
universe@345 | 384 | cmp_func cmpfnc, void *data, size_t l, size_t r) { |
universe@336 | 385 | if (l < r) { |
universe@336 | 386 | size_t m = l + (r - l) / 2; |
universe@336 | 387 | |
universe@345 | 388 | ucx_mergesort_impl(arrdata, elemsize, cmpfnc, data, l, m); |
universe@345 | 389 | ucx_mergesort_impl(arrdata, elemsize, cmpfnc, data, m + 1, r); |
universe@345 | 390 | ucx_mergesort_merge(arrdata, elemsize, cmpfnc, data, l, m, r); |
universe@336 | 391 | } |
universe@336 | 392 | } |
universe@336 | 393 | |
universe@345 | 394 | static void ucx_mergesort(void *arrdata, size_t count, size_t elemsize, |
universe@345 | 395 | cmp_func cmpfnc, void *data) { |
universe@345 | 396 | |
universe@345 | 397 | ucx_mergesort_impl(arrdata, elemsize, cmpfnc, data, 0, count-1); |
universe@345 | 398 | } |
universe@345 | 399 | |
universe@345 | 400 | #ifdef USE_UCX_QSORT_R |
universe@345 | 401 | struct cmpfnc_swapargs_info { |
universe@345 | 402 | cmp_func func; |
universe@345 | 403 | void *data; |
universe@345 | 404 | }; |
universe@345 | 405 | |
universe@345 | 406 | static int cmp_func_swap_args(void *data, const void *x, const void *y) { |
olaf@348 | 407 | cmpfnc_swapargs_info* info = data; |
universe@345 | 408 | return info->func(x, y, info->data); |
universe@345 | 409 | } |
universe@345 | 410 | |
universe@345 | 411 | static void ucx_qsort_r(void *array, size_t count, size_t elemsize, |
universe@345 | 412 | cmp_func cmpfnc, void *data) { |
universe@345 | 413 | struct cmpfnc_swapargs_info info; |
universe@345 | 414 | info.func = cmpfnc; |
universe@345 | 415 | info.data = data; |
universe@345 | 416 | qsort_r(array, count, elemsize, &info, cmp_func_swap_args); |
universe@345 | 417 | } |
universe@345 | 418 | #endif /* USE_UCX_QSORT_R */ |
universe@345 | 419 | |
universe@356 | 420 | void ucx_array_sort(UcxArray* array, cmp_func cmpfnc, void *data) { |
universe@356 | 421 | ucx_array_sort_impl(array->data, array->size, array->elemsize, |
universe@356 | 422 | cmpfnc, data); |
universe@7 | 423 | } |
universe@7 | 424 | |
universe@334 | 425 | void ucx_array_remove(UcxArray *array, size_t index) { |
universe@336 | 426 | array->size--; |
universe@336 | 427 | if (index < array->size) { |
universe@356 | 428 | void* dest = ucx_array_at(array, index); |
universe@356 | 429 | void* src = ucx_array_at(array, index+1); |
universe@336 | 430 | memmove(dest, src, (array->size - index)*array->elemsize); |
universe@336 | 431 | } |
universe@123 | 432 | } |
universe@123 | 433 | |
universe@334 | 434 | void ucx_array_remove_fast(UcxArray *array, size_t index) { |
universe@336 | 435 | array->size--; |
universe@336 | 436 | if (index < array->size) { |
universe@356 | 437 | void* dest = ucx_array_at(array, index); |
universe@356 | 438 | void* src = ucx_array_at(array, array->size); |
universe@336 | 439 | memcpy(dest, src, array->elemsize); |
universe@336 | 440 | } |
universe@7 | 441 | } |
universe@7 | 442 | |
universe@334 | 443 | int ucx_array_shrink(UcxArray* array) { |
universe@336 | 444 | void* newptr = alrealloc(array->allocator, array->data, |
universe@336 | 445 | array->size*array->elemsize); |
universe@336 | 446 | if (newptr) { |
universe@336 | 447 | array->data = newptr; |
universe@336 | 448 | array->capacity = array->size; |
universe@336 | 449 | return 0; |
universe@336 | 450 | } else { |
universe@336 | 451 | return 1; |
universe@336 | 452 | } |
universe@123 | 453 | } |
universe@123 | 454 | |
universe@334 | 455 | int ucx_array_resize(UcxArray* array, size_t capacity) { |
universe@336 | 456 | if (array->capacity >= capacity) { |
universe@336 | 457 | void* newptr = alrealloc(array->allocator, array->data, |
universe@336 | 458 | capacity*array->elemsize); |
universe@336 | 459 | if (newptr) { |
universe@336 | 460 | array->data = newptr; |
universe@336 | 461 | array->capacity = capacity; |
universe@336 | 462 | if (array->size > array->capacity) { |
universe@336 | 463 | array->size = array->capacity; |
universe@336 | 464 | } |
universe@336 | 465 | return 0; |
universe@336 | 466 | } else { |
universe@336 | 467 | return 1; |
universe@336 | 468 | } |
universe@336 | 469 | } else { |
universe@336 | 470 | return ucx_array_reserve(array, capacity); |
universe@336 | 471 | } |
universe@87 | 472 | } |
universe@87 | 473 | |
universe@334 | 474 | int ucx_array_reserve(UcxArray* array, size_t capacity) { |
universe@336 | 475 | if (array->capacity > capacity) { |
universe@336 | 476 | return 0; |
universe@336 | 477 | } else { |
universe@336 | 478 | void* newptr = alrealloc(array->allocator, array->data, |
universe@336 | 479 | capacity*array->elemsize); |
universe@336 | 480 | if (newptr) { |
universe@336 | 481 | array->data = newptr; |
universe@336 | 482 | array->capacity = capacity; |
universe@336 | 483 | return 0; |
universe@336 | 484 | } else { |
universe@336 | 485 | return 1; |
universe@336 | 486 | } |
universe@336 | 487 | } |
universe@7 | 488 | } |