numpy
diff --git a/‎numpy/core/src/multiarray/item_selection.c‎
Lines changed: 5 additions & 4 deletions b/‎numpy/core/src/multiarray/item_selection.c‎
Lines changed: 5 additions & 4 deletions
@@ -1088,16 +1088,17 @@ PyArray_Choose(PyArrayObject *ip, PyObject *op, PyArrayObject *out,
                 break;
             }
         }
-        if (cast_info.func != NULL) {
+        if (cast_info.func == NULL) {
+            /* We ensure memory doesn't overlap, so can use memcpy */
+            memcpy(ret_data, PyArray_MultiIter_DATA(multi, mi), elsize);
+        }
+        else {
             char *args[2] = {PyArray_MultiIter_DATA(multi, mi), ret_data};
             if (cast_info.func(&cast_info.context, args, &one,
                                 transfer_strides, cast_info.auxdata) < 0) {
                 goto fail;
             }
         }
-        else {
-            memmove(ret_data, PyArray_MultiIter_DATA(multi, mi), elsize);
-        }
         ret_data += elsize;
         PyArray_MultiIter_NEXT(multi);
     }
Original file line number	Diff line number	Diff line change
@@ -1088,16 +1088,17 @@ PyArray_Choose(PyArrayObject ip, PyObject op, PyArrayObject *out,
1088	1088	break;
1089	1089	}
1090	1090	}
1091		- if (cast_info.func != NULL) {
	1091	+ if (cast_info.func == NULL) {
	1092	+ /* We ensure memory doesn't overlap, so can use memcpy */
	1093	+ memcpy(ret_data, PyArray_MultiIter_DATA(multi, mi), elsize);
	1094	+ }
	1095	+ else {
1092	1096	char *args[2] = {PyArray_MultiIter_DATA(multi, mi), ret_data};
1093	1097	if (cast_info.func(&cast_info.context, args, &one,
1094	1098	transfer_strides, cast_info.auxdata) < 0) {
1095	1099	goto fail;
1096	1100	}
1097	1101	}
1098		- else {
1099		- memmove(ret_data, PyArray_MultiIter_DATA(multi, mi), elsize);
1100		- }
1101	1102	ret_data += elsize;
1102	1103	PyArray_MultiIter_NEXT(multi);
1103	1104	}