| /* Copy the dynamically-allocated area to an explicitly-sized heap allocation. | |
| Copyright (C) 2017-2023 Free Software Foundation, Inc. | |
| This file is part of the GNU C Library. | |
| The GNU C Library is free software; you can redistribute it and/or | |
| modify it under the terms of the GNU Lesser General Public | |
| License as published by the Free Software Foundation; either | |
| version 2.1 of the License, or (at your option) any later version. | |
| The GNU C Library is distributed in the hope that it will be useful, | |
| but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| Lesser General Public License for more details. | |
| You should have received a copy of the GNU Lesser General Public | |
| License along with the GNU C Library; if not, see | |
| <https://www.gnu.org/licenses/>. */ | |
| bool | |
| __libc_dynarray_finalize (struct dynarray_header *list, | |
| void *scratch, size_t element_size, | |
| struct dynarray_finalize_result *result) | |
| { | |
| if (__dynarray_error (list)) | |
| /* The caller will reported the deferred error. */ | |
| return false; | |
| size_t used = list->used; | |
| /* Empty list. */ | |
| if (used == 0) | |
| { | |
| /* An empty list could still be backed by a heap-allocated | |
| array. Free it if necessary. */ | |
| if (list->array != scratch) | |
| free (list->array); | |
| *result = (struct dynarray_finalize_result) { NULL, 0 }; | |
| return true; | |
| } | |
| size_t allocation_size = used * element_size; | |
| void *heap_array = malloc (allocation_size); | |
| if (heap_array != NULL) | |
| { | |
| /* The new array takes ownership of the strings. */ | |
| if (list->array != NULL) | |
| memcpy (heap_array, list->array, allocation_size); | |
| if (list->array != scratch) | |
| free (list->array); | |
| *result = (struct dynarray_finalize_result) | |
| { .array = heap_array, .length = used }; | |
| return true; | |
| } | |
| else | |
| /* The caller will perform the freeing operation. */ | |
| return false; | |
| } | |
| libc_hidden_def (__libc_dynarray_finalize) | |