def _mpq_to_str(a, base):
l = (gmp.mpz_sizeinbase(gmp.mpq_numref(a), base) +
gmp.mpz_sizeinbase(gmp.mpq_denref(a), base) + 3)
p = ffi.new('char[]', l)
gmp.mpq_get_str(p, base, a)
if PY3:
return ffi.string(p).decode('UTF-8')
else:
return ffi.string(p)
def _mpq_to_str(a, base):
l = (gmp.mpz_sizeinbase(gmp.mpq_numref(a), base) +
gmp.mpz_sizeinbase(gmp.mpq_denref(a), base) + 3)
p = ffi.new('char[]', l)
gmp.mpq_get_str(p, base, a)
if PY3:
return ffi.string(p).decode('UTF-8')
else:
return ffi.string(p)
def _mpz_to_str(a, base):
"""
Return string representation of a in base base.
:type a: mpz_t
:param base: 2..62
:type base: int
:rtype: str
"""
l = gmp.mpz_sizeinbase(a, base) + 2
p = ffi.new('char[]', l)
gmp.mpz_get_str(p, base, a)
if PY3:
return ffi.string(p).decode('UTF-8')
else:
return ffi.string(p)
def _mpz_to_str(a, base):
"""
Return string representation of a in base base.
:type a: mpz_t
:param base: 2..62
:type base: int
:rtype: str
"""
l = gmp.mpz_sizeinbase(a, base) + 2
p = ffi.new('char[]', l)
gmp.mpz_get_str(p, base, a)
if PY3:
return ffi.string(p).decode('UTF-8')
else:
return ffi.string(p)
def _mpz_to_pylong(a):
"""
Convert a to a python long.
:type a: mpz_t
:rtype: long
"""
size = ffi.sizeof('uint64_t')
numb = 8 * size
count = (gmp.mpz_sizeinbase(a, 2) + numb - 1) // numb
p = ffi.new('uint64_t[]', count)
gmp.mpz_export(p, ffi.NULL, 1, size, 0, 0, a)
res = 0
for n in p:
res = (res << numb) + n
return res * gmp.mpz_sgn(a)
def _mpz_to_pylong(a):
"""
Convert a to a python long.
:type a: mpz_t
:rtype: long
"""
size = ffi.sizeof('uint64_t')
numb = 8 * size
count = (gmp.mpz_sizeinbase(a, 2) + numb - 1) // numb
p = ffi.new('uint64_t[]', count)
gmp.mpz_export(p, ffi.NULL, 1, size, 0, 0, a)
res = 0
for n in p:
res = (res << numb) + n
return res * gmp.mpz_sgn(a)
