[Python-Dev] Py_SIZE vs PyXXX_GET_SIZE (original) (raw)
Benjamin Peterson benjamin at python.org
Tue Mar 21 02:22:46 EDT 2017
- Previous message (by thread): [Python-Dev] Py_SIZE vs PyXXX_GET_SIZE
- Next message (by thread): [Python-Dev] Py_SIZE vs PyXXX_GET_SIZE
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
On Mon, Mar 20, 2017, at 13:18, Antoine Pitrou wrote:
On Mon, 20 Mar 2017 13:26:34 +0200 Serhiy Storchaka <storchaka at gmail.com> wrote: > What is the preferable way of getting the size of tuple, list, bytes, > bytearray: PySIZE or PyTupleGETSIZE, PyListGETSIZE, > PyBytesGETSIZE, PyByteArrayGETSIZE? Are macros for concrete types > more preferable or they are outdated?
+1 for using concrete macros. PySIZE is a low-level internal thing (e.g. it will return a negative size on negative ints).
+1 Py_SIZE is an implementation detail of varsize types. Using the concrete macros also the implementation to change without altering API consumers.
- Previous message (by thread): [Python-Dev] Py_SIZE vs PyXXX_GET_SIZE
- Next message (by thread): [Python-Dev] Py_SIZE vs PyXXX_GET_SIZE
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]