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-rw-r--r--libdimension/dimension/array.h15
1 files changed, 11 insertions, 4 deletions
diff --git a/libdimension/dimension/array.h b/libdimension/dimension/array.h
index 1b3771d..0a2551b 100644
--- a/libdimension/dimension/array.h
+++ b/libdimension/dimension/array.h
@@ -147,13 +147,15 @@ dmnsn_array_pop(dmnsn_array *array, void *obj)
DMNSN_INLINE void
dmnsn_array_insert(dmnsn_array *array, size_t i, const void *obj)
{
- size_t size = dmnsn_array_size(array);
- /* Increase the size by 1 */
- dmnsn_array_resize(array, size + 1);
+ size_t size = dmnsn_array_size(array) + 1;
+ if (i >= size)
+ size = i + 1;
+ dmnsn_array_resize(array, size);
+
/* Move the elements at and after `i' 1 to the right */
memmove((char *)array->ptr + array->obj_size*(i + 1),
(char *)array->ptr + array->obj_size*i,
- array->obj_size*(size - i));
+ array->obj_size*(size - i - 1));
/* Insert `obj' at `i' */
memcpy((char *)array->ptr + array->obj_size*i, obj, array->obj_size);
}
@@ -163,6 +165,11 @@ DMNSN_INLINE void
dmnsn_array_remove(dmnsn_array *array, size_t i)
{
size_t size = dmnsn_array_size(array);
+ if (i >= size) {
+ /* Range check failed */
+ dmnsn_error(DMNSN_SEVERITY_HIGH, "Array index out of bounds.");
+ }
+
/* Move the array elements after `i' 1 to the left */
memmove((char *)array->ptr + array->obj_size*i,
(char *)array->ptr + array->obj_size*(i + 1),