Exemplo n.º 1
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)
Exemplo n.º 2
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)
Exemplo n.º 3
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)
Exemplo n.º 4
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)
Exemplo n.º 5
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
Exemplo n.º 6
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