Add array:reversed()

2 files changed, 9 insertions, 0 deletions

diff --git a/builtins/array.c b/builtins/array.c
index 3380d4d3..6ebc6429 100644
--- a/builtins/array.c
+++ b/builtins/array.c
@@ -223,6 +223,14 @@ public array_t Array__slice(array_t *array, int64_t first, int64_t length, int64
     };
 }
 
+public array_t Array__reversed(array_t array)
+{
+    array_t reversed = array;
+    reversed.stride = -array.stride;
+    reversed.data = array.data + (array.length-1)*array.stride;
+    return reversed;
+}
+
 public array_t Array__concat(array_t x, array_t y, const TypeInfo *type)
 {
     int64_t item_size = get_item_size(type);
diff --git a/builtins/array.h b/builtins/array.h
index b538be30..dad72b7e 100644
--- a/builtins/array.h
+++ b/builtins/array.h
@@ -63,6 +63,7 @@ void Array__clear(array_t *array);
 void Array__compact(array_t *arr, const TypeInfo *type);
 bool Array__contains(array_t array, void *item, const TypeInfo *type);
 array_t Array__slice(array_t *array, int64_t first, int64_t length, int64_t stride, const TypeInfo *type);
+array_t Array__reversed(array_t array);
 array_t Array__concat(array_t x, array_t y, const TypeInfo *type);
 uint32_t Array__hash(const array_t *arr, const TypeInfo *type);
 int32_t Array__compare(const array_t *x, const array_t *y, const TypeInfo *type);