vis

commit 37fa44ed3e6d0cf2dacf7532324092e4c71454c1
parent ac93a434e2501461030a7a6cd4c851e85333b7c5
Author: Marc André Tanner <mat@brain-dump.org>
Date:   Wed, 19 Apr 2017 10:08:18 +0200

array: implement array_resize

Diffstat:
M
array.c
 | 
8
++++++++
M
array.h
 | 
3
+++

2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/array.c b/array.c
@@ -135,3 +135,11 @@ bool array_truncate(Array *arr, size_t len) {
 	}
 	return false;
 }
+
+bool array_resize(Array *arr, size_t len) {
+	if (len <= arr->count) {
+		arr->len = len;
+		return true;
+	}
+	return false;
+}
diff --git a/array.h b/array.h
@@ -58,5 +58,8 @@ size_t array_length(Array*);
 size_t array_capacity(Array*);
 /* remove all elements at index >= length, keep allocated memory */
 bool array_truncate(Array*, size_t length);
+/* change length if it is less than the current capacity, newly
+ * accesible elements preserve their previous values */
+bool array_resize(Array*, size_t length);
 
 #endif