コード例 #1
0
ファイル: tgmpop.c プロジェクト: Canar/mpfr
static void
special (void)
{
  mpfr_t x, y;
  mpq_t q;
  mpz_t z;
  int res = 0;

  mpfr_init (x);
  mpfr_init (y);
  mpq_init (q);
  mpz_init (z);

  /* cancellation in mpfr_add_q */
  mpfr_set_prec (x, 60);
  mpfr_set_prec (y, 20);
  mpz_set_str (mpq_numref (q), "-187207494", 10);
  mpz_set_str (mpq_denref (q), "5721", 10);
  mpfr_set_str_binary (x, "11111111101001011011100101100011011110010011100010000100001E-44");
  mpfr_add_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("cancelation in add_q", mpfr_cmp_ui_2exp (y, 256783, -64) == 0);

  mpfr_set_prec (x, 19);
  mpfr_set_str_binary (x, "0.1011110101110011100E0");
  mpz_set_str (mpq_numref (q), "187207494", 10);
  mpz_set_str (mpq_denref (q), "5721", 10);
  mpfr_set_prec (y, 29);
  mpfr_add_q (y, x, q, MPFR_RNDD);
  mpfr_set_prec (x, 29);
  mpfr_set_str_binary (x, "11111111101001110011010001001E-14");
  CHECK_FOR ("cancelation in add_q", mpfr_cmp (x,y) == 0);

  /* Inf */
  mpfr_set_inf (x, 1);
  mpz_set_str (mpq_numref (q), "395877315", 10);
  mpz_set_str (mpq_denref (q), "3508975966", 10);
  mpfr_set_prec (y, 118);
  mpfr_add_q (y, x, q, MPFR_RNDU);
  CHECK_FOR ("inf", mpfr_inf_p (y) && mpfr_sgn (y) > 0);
  mpfr_sub_q (y, x, q, MPFR_RNDU);
  CHECK_FOR ("inf", mpfr_inf_p (y) && mpfr_sgn (y) > 0);

  /* Nan */
  MPFR_SET_NAN (x);
  mpfr_add_q (y, x, q, MPFR_RNDU);
  CHECK_FOR ("nan", mpfr_nan_p (y));
  mpfr_sub_q (y, x, q, MPFR_RNDU);
  CHECK_FOR ("nan", mpfr_nan_p (y));

  /* Exact value */
  mpfr_set_prec (x, 60);
  mpfr_set_prec (y, 60);
  mpfr_set_str1 (x, "0.5");
  mpz_set_str (mpq_numref (q), "3", 10);
  mpz_set_str (mpq_denref (q), "2", 10);
  res = mpfr_add_q (y, x, q, MPFR_RNDU);
  CHECK_FOR ("0.5+3/2", mpfr_cmp_ui(y, 2)==0 && res==0);
  res = mpfr_sub_q (y, x, q, MPFR_RNDU);
  CHECK_FOR ("0.5-3/2", mpfr_cmp_si(y, -1)==0 && res==0);

  /* Inf Rationnal */
  mpq_set_ui (q, 1, 0);
  mpfr_set_str1 (x, "0.5");
  res = mpfr_add_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("0.5+1/0", mpfr_inf_p (y) && MPFR_IS_POS (y) && res == 0);
  res = mpfr_sub_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("0.5-1/0", mpfr_inf_p (y) && MPFR_IS_NEG (y) && res == 0);
  mpq_set_si (q, -1, 0);
  res = mpfr_add_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("0.5+ -1/0", mpfr_inf_p (y) && MPFR_IS_NEG (y) && res == 0);
  res = mpfr_sub_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("0.5- -1/0", mpfr_inf_p (y) && MPFR_IS_POS (y) && res == 0);
  res = mpfr_div_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("0.5 / (-1/0)", mpfr_zero_p (y) && MPFR_IS_NEG (y) && res == 0);
  mpq_set_ui (q, 1, 0);
  mpfr_set_inf (x, 1);
  res = mpfr_add_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("+Inf + +Inf", mpfr_inf_p (y) && MPFR_IS_POS (y) && res == 0);
  res = mpfr_sub_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("+Inf - +Inf", MPFR_IS_NAN (y) && res == 0);
  mpfr_set_inf (x, -1);
  res = mpfr_add_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("-Inf + +Inf", MPFR_IS_NAN (y) && res == 0);
  res = mpfr_sub_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("-Inf - +Inf", mpfr_inf_p (y) && MPFR_IS_NEG (y) && res == 0);
  mpq_set_si (q, -1, 0);
  mpfr_set_inf (x, 1);
  res = mpfr_add_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("+Inf + -Inf", MPFR_IS_NAN (y) && res == 0);
  res = mpfr_sub_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("+Inf - -Inf", mpfr_inf_p (y) && MPFR_IS_POS (y) && res == 0);
  mpfr_set_inf (x, -1);
  res = mpfr_add_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("-Inf + -Inf", mpfr_inf_p (y) && MPFR_IS_NEG (y) && res == 0);
  res = mpfr_sub_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("-Inf - -Inf", MPFR_IS_NAN (y) && res == 0);

  /* 0 */
  mpq_set_ui (q, 0, 1);
  mpfr_set_ui (x, 42, MPFR_RNDN);
  res = mpfr_add_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("42+0/1", mpfr_cmp_ui (y, 42) == 0 && res == 0);
  res = mpfr_sub_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("42-0/1", mpfr_cmp_ui (y, 42) == 0 && res == 0);
  res = mpfr_mul_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("42*0/1", mpfr_zero_p (y) && MPFR_IS_POS (y) && res == 0);
  mpfr_clear_flags ();
  res = mpfr_div_q (y, x, q, MPFR_RNDN);
  CHECK_FOR ("42/(0/1)", mpfr_inf_p (y) && MPFR_IS_POS (y) && res == 0
             && mpfr_divby0_p ());
  mpz_set_ui (z, 0);
  mpfr_clear_flags ();
  res = mpfr_div_z (y, x, z, MPFR_RNDN);
  CHECK_FORZ ("42/0", mpfr_inf_p (y) && MPFR_IS_POS (y) && res == 0
              && mpfr_divby0_p ());

  mpz_clear (z);
  mpq_clear (q);
  mpfr_clear (x);
  mpfr_clear (y);
}
コード例 #2
0
ファイル: AudioHardware.cpp プロジェクト: Jamin13/M9300_CM7
AudioHardware::AudioHardware() :
    mInit(false), mMicMute(true), mBluetoothNrec(true), mBluetoothId(0),
    mOutput(0), mSndEndpoints(NULL), mCurSndDevice(-1),
    SND_DEVICE_CURRENT(-1),
    SND_DEVICE_HANDSET(-1),
    SND_DEVICE_SPEAKER(-1),
    SND_DEVICE_HEADSET(-1),
    SND_DEVICE_BT(-1),
    SND_DEVICE_CARKIT(-1),
    SND_DEVICE_TTY_FULL(-1),
    SND_DEVICE_TTY_VCO(-1),
    SND_DEVICE_TTY_HCO(-1),
    SND_DEVICE_NO_MIC_HEADSET(-1),
    SND_DEVICE_FM_HEADSET(-1),
    SND_DEVICE_HEADSET_AND_SPEAKER(-1),
    SND_DEVICE_FM_SPEAKER(-1),
    SND_DEVICE_BT_EC_OFF(-1)
{

    struct msm_snd_endpoint *ept;


    mNumSndEndpoints = snd_get_num();
    LOGD("mNumSndEndpoints = %d", mNumSndEndpoints);
    mSndEndpoints = new msm_snd_endpoint[mNumSndEndpoints];
    mInit = true;
    LOGV("constructed %d SND endpoints)", mNumSndEndpoints);
    ept = mSndEndpoints; //LOOK AT mSndEndpoints type...

    for (int cnt = 0; cnt < mNumSndEndpoints; cnt++, ept++) {
        ept->id = cnt;
        snd_get_endpoint(cnt, ept);
#define CHECK_FOR(desc) \
        if (!strcmp(ept->name, #desc)) { \
            SND_DEVICE_##desc = ept->id; \
            LOGD("BT MATCH " #desc); \
        } else
        CHECK_FOR(CURRENT)
        CHECK_FOR(HANDSET)
        CHECK_FOR(SPEAKER)
        CHECK_FOR(BT)
        CHECK_FOR(BT_EC_OFF)
        CHECK_FOR(HEADSET)
        CHECK_FOR(CARKIT)
        CHECK_FOR(TTY_FULL)
        CHECK_FOR(TTY_VCO)
        CHECK_FOR(TTY_HCO)
        CHECK_FOR(NO_MIC_HEADSET)
        CHECK_FOR(FM_HEADSET)
        CHECK_FOR(FM_SPEAKER)
        CHECK_FOR(HEADSET_AND_SPEAKER) {}
#undef CHECK_FOR
    }
    // No BT noise cancellation endpoint, so set it to be the same
    // as regular BT, or else we'll get bad routes with devices issue
    // NREC=0
    SND_DEVICE_BT_EC_OFF = SND_DEVICE_BT;
}