def _pylong_to_mpz(n, a):
"""
Set `a` from `n`.
:type n: long
:type a: mpz_t
"""
gmp.mpz_set_str(a, hex(n).rstrip('L').encode('UTF-8'), 0)
def _pylong_to_mpz(n, a):
"""
Set `a` from `n`.
:type n: long
:type a: mpz_t
"""
gmp.mpz_set_str(a, hex(n).rstrip('L').encode('UTF-8'), 0)
def _pyint_to_mpz(n, a):
"""
Set `a` from `n`.
:type n: int,long
:type a: mpz_t
"""
if -sys.maxsize - 1 <= n <= sys.maxsize:
gmp.mpz_set_si(a, n)
elif sys.maxsize < n <= MAX_UI:
gmp.mpz_set_ui(a, n)
else:
gmp.mpz_set_str(a, hex(n).rstrip('L').encode('UTF-8'), 0)
def _pyint_to_mpz(n, a):
"""
Set `a` from `n`.
:type n: int,long
:type a: mpz_t
"""
if -sys.maxsize - 1 <= n <= sys.maxsize:
gmp.mpz_set_si(a, n)
elif sys.maxsize < n <= MAX_UI:
gmp.mpz_set_ui(a, n)
else:
gmp.mpz_set_str(a, hex(n).rstrip('L').encode('UTF-8'), 0)
def __init__(self, n=0, base=None):
"""
mpz() -> mpz(0)
If no argument is given, return mpz(0).
mpz(n) -> mpz
Return an 'mpz' object with a numeric value 'n' (truncating n
to its integer part if it's a Fraction, 'mpq', Decimal, float
or 'mpfr').
mpz(s[, base=0]):
Return an 'mpz' object from a string 's' made of digits in the
given base. If base=0, binary, octal, or hex Python strings
are recognized by leading 0b, 0o, or 0x characters, otherwise
the string is assumed to be decimal. Values for base can range
between 2 and 62.
"""
if isinstance(n, self.__class__):
self._mpz = n._mpz
return
a = self._mpz = ffi.gc(_new_mpz(), _del_mpz)
if isinstance(n, str):
if base is None:
base = 10
if base == 0 or 2 <= base <= 62:
if gmp.mpz_set_str(a, n.encode('UTF-8'), base) != 0:
raise ValueError("Can't create mpz from %s with base %s" %
(n, base))
else:
raise ValueError('base must be 0 or 2..62, not %s' % base)
elif base is not None:
raise ValueError('Base only allowed for str, not for %s.' %
type(n))
elif isinstance(n, float):
gmp.mpz_set_d(a, n)
elif isinstance(n, (int, long)):
_pyint_to_mpz(n, a)
else:
raise TypeError
def __init__(self, n=0, base=None):
"""
mpz() -> mpz(0)
If no argument is given, return mpz(0).
mpz(n) -> mpz
Return an 'mpz' object with a numeric value 'n' (truncating n
to its integer part if it's a Fraction, 'mpq', Decimal, float
or 'mpfr').
mpz(s[, base=0]):
Return an 'mpz' object from a string 's' made of digits in the
given base. If base=0, binary, octal, or hex Python strings
are recognized by leading 0b, 0o, or 0x characters, otherwise
the string is assumed to be decimal. Values for base can range
between 2 and 62.
"""
if isinstance(n, self.__class__):
self._mpz = n._mpz
return
a = self._mpz = ffi.gc(_new_mpz(), _del_mpz)
if isinstance(n, str):
if base is None:
base = 10
if base == 0 or 2 <= base <= 62:
if gmp.mpz_set_str(a, n.encode("UTF-8"), base) != 0:
raise ValueError("Can't create mpz from %s with base %s" % (n, base))
else:
raise ValueError("base must be 0 or 2..62, not %s" % base)
elif base is not None:
raise ValueError("Base only allowed for str, not for %s." % type(n))
elif isinstance(n, float):
gmp.mpz_set_d(a, n)
elif isinstance(n, (int, long)):
_pyint_to_mpz(n, a)
else:
raise TypeError
