bk403nv/pvjc24
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Оновити 'cv4/list_ops.c'

Browse Source
This commit is contained in:
Kapliuk 2024-03-14 21:32:52 +00:00
parent ea0788d34e
commit 6065f55723
1 changed files with 22 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
cv4/list_ops.c
View File

@ -5,14 +5,17 @@
#include <string.h> #include <string.h>
list_t *new_list(size_t length, list_element_t elements[]) { list_t *new_list(size_t length, list_element_t elements[]) {
list_t *list = malloc(sizeof(list_t) + length * sizeof(list_element_t)); list_t *list = malloc(sizeof(list_t));
if (!list) { if (!list) {
return NULL; return NULL;
} }
list->length = length; list->elements = malloc(length * sizeof(list_element_t));
for (size_t i = 0; i < length; i++) { if (!list->elements) {
list->elements[i] = elements[i]; free(list);
return NULL;
} }
list->length = length;
memcpy(list->elements, elements, length * sizeof(list_element_t));
return list; return list;
} }
@ -21,26 +24,24 @@ list_t *append_list(list_t *list1, list_t *list2) {
if (!list3) { if (!list3) {
return NULL; return NULL;
} }
memcpy(list3->elements + list1->length, list2->elements, list2->length * sizeof(list_element_t));
for (size_t i = list1->length; i < list3->length; i++) list3->length = list1->length + list2->length;
list3->elements[i] = list2->elements[i - list1->length];
return list3; return list3;
} }
list_t *filter_list(list_t *list, bool (*predicate)(list_element_t)) { list_t *filter_list(list_t *list, bool (*predicate)(list_element_t)) {
list_element_t fil[list->length]; list_element_t *filtered_elements = malloc(list->length * sizeof(list_element_t));
size_t filter_length = 0; if (!filtered_elements) {
for(size_t i = 0; i < list->length;i++){
if(predicate(list->elements[i])){
fil[filter_length++] = list->elements[i];
}
}
list_t *result = new_list(filter_length,fil);
if (result == NULL) {
return NULL; return NULL;
} }
for(size_t i = 0;i < list->length;i++) size_t filter_length = 0;
result->elements[i] = fil[i]; for (size_t i = 0; i < list->length; i++) {
if (predicate(list->elements[i])) {
filtered_elements[filter_length++] = list->elements[i];
}
}
list_t *result = new_list(filter_length, filtered_elements);
free(filtered_elements);
return result; return result;
} }