Exemple #1
0
def _del_mpz(mpz):
    global in_mpz_cache

    if in_mpz_cache < cache_size:
        if ffi.sizeof(mpz[0]) <= cache_obsize:
            mpz_cache[in_mpz_cache] = mpz
        else:
            mpz_cache[in_mpz_cache] = ffi.new('mpz_t')
        in_mpz_cache += 1
    else:
        gmp.mpz_clear(mpz)
Exemple #2
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def _pyint_to_mpfr(n, a):
    if -sys.maxsize - 1 <= n <= sys.maxsize:
        gmp.mpfr_set_si(a, n, gmp.MPFR_RNDN)
    elif sys.maxsize < n <= MAX_UI:
        gmp.mpfr_set_ui(a, n, gmp.MPFR_RNDN)
    else:
        assert isinstance(n, long)
        tmp_mpz = ffi.new('mpz_t')
        gmp.mpz_init(tmp_mpz)
        _pylong_to_mpz(n, tmp_mpz)
        gmp.mpfr_set_z(a, tmp_mpz, gmp.MPFR_RNDN)
        gmp.mpz_clear(tmp_mpz)
Exemple #3
0
def _pyint_to_mpfr(n, a):
    if -sys.maxsize - 1 <= n <= sys.maxsize:
        gmp.mpfr_set_si(a, n, gmp.MPFR_RNDN)
    elif sys.maxsize < n <= MAX_UI:
        gmp.mpfr_set_ui(a, n, gmp.MPFR_RNDN)
    else:
        assert isinstance(n, long)
        tmp_mpz = ffi.new('mpz_t')
        gmp.mpz_init(tmp_mpz)
        _pylong_to_mpz(n, tmp_mpz)
        gmp.mpfr_set_z(a, tmp_mpz, gmp.MPFR_RNDN)
        gmp.mpz_clear(tmp_mpz)