bpo-27961: Replace PY_LLONG_MAX, PY_LLONG_MIN and PY_ULLONG_MAX with standard macros

[sir-sigurd]

https://bugs.python.org/issue27961

These ones

cpython/Include/pytime.h

Lines 20 to 21 in c4106af

	#define _PyTime_MIN PY_LLONG_MIN
	#define _PyTime_MAX PY_LLONG_MAX

will be handled in #15384.

[vstinner]

Please open a new issue on bugs.python.org for this change.

On Windows, PC/pyconfig.h does not define PY_LLONG_MIN as LLONG_MIN but _I64_MIN:

/* 64 bit ints are usually spelt __int64 unless compiler has overridden */ #ifndef PY_LONG_LONG # define PY_LONG_LONG __int64 # define PY_LLONG_MAX _I64_MAX # define PY_LLONG_MIN _I64_MIN # define PY_ULLONG_MAX _UI64_MAX #endif 

Which Visual Studio versions support LLONG_MIN? I never recall what is the minimum Visual Studio version to build Python on Windows. My notes say "VS 2017" for Python 3.8 and newer: https://pythondev.readthedocs.io/windows.html#python-and-visual-studio-version-matrix

[sir-sigurd]

Which Visual Studio versions support LLONG_MIN?

I don't know, but it's used on Win here:

cpython/Modules/_io/_iomodule.h

Lines 90 to 97 in c4106af

	#ifdef MS_WINDOWS
	/* Windows uses long long for offsets */
	typedef long long Py_off_t;
	# define PyLong_AsOff_t PyLong_AsLongLong
	# define PyLong_FromOff_t PyLong_FromLongLong
	# define PY_OFF_T_MAX LLONG_MAX
	# define PY_OFF_T_MIN LLONG_MIN

since 47ff073.

[vstinner]

Ok. Visual Studio seems to be fine. Again, please open a new issue for this change.

[vstinner]

Thanks @sir-sigurd !