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array: add function for removing elements

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This commit is contained in:
Miroslav Lichvar 2023-03-01 16:02:16 +01:00
parent f99b2f633b
commit caf82b1a45
2 changed files with 18 additions and 0 deletions
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15
array.c
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@ -116,6 +116,21 @@ ARR_AppendElement(ARR_Instance array, void *element)
memcpy(e, element, array->elem_size);
}
void
ARR_RemoveElement(ARR_Instance array, unsigned int index)
{
void *e, *l;
e = ARR_GetElement(array, index);
l = ARR_GetElement(array, array->used - 1);
if (e < l)
memmove(e, (char *)e + array->elem_size, (char *)l - (char *)e);
array->used--;
realloc_array(array, array->used);
}
void
ARR_SetSize(ARR_Instance array, unsigned int size)
{

3
array.h
View file

@ -47,6 +47,9 @@ extern void *ARR_GetElements(ARR_Instance array);
/* Add a new element to the end of the array */
extern void ARR_AppendElement(ARR_Instance array, void *element);
/* Remove element with given index */
extern void ARR_RemoveElement(ARR_Instance array, unsigned int index);
/* Set the size of the array */
extern void ARR_SetSize(ARR_Instance array, unsigned int size);