64-bit ints <-> PyLongs?

[Kalle Svensson]

Hi.

I'm writing a wrapper around a C library where some functions return, or
expect as arguments, 64-bit ints. Will PyLong_*LongLong work on
win32 (and preferably Mac too), and is LONG_LONG guaranteed to be at least
64 bits?

If not, any suggestions on how to convert between 64-bit ints and PyLongs
at least semi-portably (gcc and win32)?

TIA,
  Kalle
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