mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-22 17:55:18 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

gh-121040: Use __attribute__((fallthrough)) (#121044)

Browse source 
Fix warnings when using -Wimplicit-fallthrough compiler flag.

Annotate explicitly "fall through" switch cases with a new
_Py_FALLTHROUGH macro which uses __attribute__((fallthrough)) if
available. Replace "fall through" comments with _Py_FALLTHROUGH.

Add _Py__has_attribute() macro. No longer define __has_attribute()
macro if it's not defined. Move also _Py__has_builtin() at the top
of pyport.h.

Co-Authored-By: Nikita Sobolev <mail@sobolevn.me>
This commit is contained in:
Victor Stinner 2024-06-27 11:58:44 +02:00 • committed by GitHub
parent 4999e0bda0
commit 12af8ec864
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
29 changed files with 131 additions and 104 deletions
Download patch file Download diff file Expand all files Collapse all files

1
Python/modsupport.c
View file

@ -306,6 +306,7 @@ do_mkvalue(const char **p_format, va_list *p_va)
return PyLong_FromSsize_t(va_arg(*p_va, Py_ssize_t));
#endif
/* Fall through from 'n' to 'l' if Py_ssize_t is long */
_Py_FALLTHROUGH;
case 'l':
return PyLong_FromLong(va_arg(*p_va, long));