New submission from STINNER Victor <[email protected]>:
I propose to change PyVectorcall_NARGS() return type from unsigned size_t to
signed Py_ssize_t.
Currently, the function is defined as:
static inline Py_ssize_t
PyVectorcall_NARGS(size_t n)
{
return n & ~PY_VECTORCALL_ARGUMENTS_OFFSET;
}
But in CPython code base, the result is always stored in a *signed* Py_ssize_t:
Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
Sometimes, this nargs is passed to _PyObject_MakeTpCall() which expects nargs
to be Py_ssize_t, so it's consistent.
In general in CPython, a size uses type Py_ssize_t, not size_t. Example:
PyVarObject.ob_size type is Py_ssize_t.
----------
components: C API
messages: 361824
nosy: jdemeyer, petr.viktorin, vstinner
priority: normal
severity: normal
status: open
title: PyVectorcall_NARGS(): change return type to Py_ssize_t
versions: Python 3.9
_______________________________________
Python tracker <[email protected]>
<https://bugs.python.org/issue39611>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
