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Fix indentation.

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Georg Brandl 2012-03-24 08:12:41 +01:00
parent 60187b5ee5
commit 226ed7ecbd
1 changed files with 20 additions and 20 deletions
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Doc/library/stdtypes.rst
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@ -645,30 +645,30 @@ made available to Python as the :attr:`modulus` attribute of
Here are the rules in detail:
- If ``x = m / n`` is a nonnegative rational number and ``n`` is not divisible
by ``P``, define ``hash(x)`` as ``m * invmod(n, P) % P``, where ``invmod(n,
P)`` gives the inverse of ``n`` modulo ``P``.
- If ``x = m / n`` is a nonnegative rational number and ``n`` is not divisible
by ``P``, define ``hash(x)`` as ``m * invmod(n, P) % P``, where ``invmod(n,
P)`` gives the inverse of ``n`` modulo ``P``.
- If ``x = m / n`` is a nonnegative rational number and ``n`` is
divisible by ``P`` (but ``m`` is not) then ``n`` has no inverse
modulo ``P`` and the rule above doesn't apply; in this case define
``hash(x)`` to be the constant value ``sys.hash_info.inf``.
- If ``x = m / n`` is a nonnegative rational number and ``n`` is
divisible by ``P`` (but ``m`` is not) then ``n`` has no inverse
modulo ``P`` and the rule above doesn't apply; in this case define
``hash(x)`` to be the constant value ``sys.hash_info.inf``.
- If ``x = m / n`` is a negative rational number define ``hash(x)``
as ``-hash(-x)``. If the resulting hash is ``-1``, replace it with
``-2``.
- If ``x = m / n`` is a negative rational number define ``hash(x)``
as ``-hash(-x)``. If the resulting hash is ``-1``, replace it with
``-2``.
- The particular values ``sys.hash_info.inf``, ``-sys.hash_info.inf``
and ``sys.hash_info.nan`` are used as hash values for positive
infinity, negative infinity, or nans (respectively). (All hashable
nans have the same hash value.)
- The particular values ``sys.hash_info.inf``, ``-sys.hash_info.inf``
and ``sys.hash_info.nan`` are used as hash values for positive
infinity, negative infinity, or nans (respectively). (All hashable
nans have the same hash value.)
- For a :class:`complex` number ``z``, the hash values of the real
and imaginary parts are combined by computing ``hash(z.real) +
sys.hash_info.imag * hash(z.imag)``, reduced modulo
``2**sys.hash_info.width`` so that it lies in
``range(-2**(sys.hash_info.width - 1), 2**(sys.hash_info.width -
1))``. Again, if the result is ``-1``, it's replaced with ``-2``.
- For a :class:`complex` number ``z``, the hash values of the real
and imaginary parts are combined by computing ``hash(z.real) +
sys.hash_info.imag * hash(z.imag)``, reduced modulo
``2**sys.hash_info.width`` so that it lies in
``range(-2**(sys.hash_info.width - 1), 2**(sys.hash_info.width -
1))``. Again, if the result is ``-1``, it's replaced with ``-2``.
To clarify the above rules, here's some example Python code,