C++ (Cpp) _GMP_pn_primorial Beispiele

Beispiel #1

Datei: ecpp.c Projekt: neilb/Math-Prime-Util-GMP

void init_ecpp_gcds(void) {
  if (_gcdinit == 0) {
    mpz_init(_gcd_small);
    mpz_init(_gcd_large);
    _GMP_pn_primorial(_gcd_small,  3000);
    _GMP_pn_primorial(_gcd_large, 20000);
    mpz_divexact(_gcd_large, _gcd_large, _gcd_small);
    mpz_divexact_ui(_gcd_small, _gcd_small, 2*3*5);
    mpz_init(_lcm_small);
    _GMP_lcm_of_consecutive_integers(300, _lcm_small);
    _gcdinit = 1;
  }
}

Beispiel #2

Datei: ecpp.c Projekt: danaj/Math-Prime-Util-GMP

void init_ecpp_gcds(UV nsize) {
  if (_gcdinit == 0) {
    mpz_init(_gcd_small);
    mpz_init(_gcd_large);
    _GMP_pn_primorial(_gcd_small,  3000);
    /* This is never re-adjusted -- first number proved sets the size */
    nsize *= 20;
    if      (nsize < 20000) nsize = 20000;
    else if (nsize > 500000) nsize = 500000;
    _GMP_pn_primorial(_gcd_large, nsize);
    mpz_divexact(_gcd_large, _gcd_large, _gcd_small);
    mpz_divexact_ui(_gcd_small, _gcd_small, 2*3*5);
    _gcdinit = 1;
  }
}