C++ (Cpp) VEC_PARAMS1の例

コード例 #1

ファイル: vec_CZ_c.c プロジェクト: kkirstein/lacaml

CAMLprim value LFUN(linspace_stub)(value vY, value va, value vb, value vN)
{
  CAMLparam1(vY);
  integer i, GET_INT(N);
  REAL ar = Double_field(va, 0),
       ai = Double_field(va, 1),
       N1 = N - 1.,
       hr = (Double_field(vb, 0) - ar) / N1,
       hi = (Double_field(vb, 1) - ai) / N1,
       xr = ar,
       xi = ai;
  VEC_PARAMS1(Y);

  caml_enter_blocking_section();  /* Allow other threads */

  for (i = 1; i <= N; i++) {
    Y_data->r = xr;
    Y_data->i = xi;
    Y_data++;
    xr = ar + i * hr;
    xi = ai + i * hi;
  }

  caml_leave_blocking_section();  /* Disallow other threads */

  CAMLreturn(Val_unit);
}

コード例 #2

ファイル: vec_CZ_c.c プロジェクト: kkirstein/lacaml

CAMLprim value LFUN(logspace_stub)(value vY, value va, value vb,
                                   value vbase, value vN)
{
  CAMLparam1(vY);
  integer i, GET_INT(N);
  REAL ar = Double_field(va, 0),
       ai = Double_field(va, 1),
       N1 = N - 1.,
       hr = (Double_field(vb, 0) - ar) / N1,
       hi = (Double_field(vb, 1) - ai) / N1,
       base = Double_val(vbase),
       xr = ar,
       xi = ai;
  VEC_PARAMS1(Y);

  caml_enter_blocking_section();  /* Allow other threads */

  if (base == 2.0)
    for (i = 1; i <= N; i++) {
      Y_data->r = exp2(xr);
      Y_data->i = exp2(xi);
      Y_data++;
      xr = ar + i * hr;
      xi = ai + i * hi;
    }
  else if (base == 10.0)
    for (i = 1; i <= N; i++) {
      Y_data->r = exp10(xr);
      Y_data->i = exp10(xi);
      Y_data++;
      xr = ar + i * hr;
      xi = ai + i * hi;
    }
  else if (base == 2.7182818284590452353602874713526625L)
    for (i = 1; i <= N; i++) {
      Y_data->r = exp(xr);
      Y_data->i = exp(xi);
      Y_data++;
      xr = ar + i * hr;
      xi = ai + i * hi;
    }
  else {
    double log_base = log(base);
    for (i = 1; i <= N; i++) {
      Y_data->r = exp(xr * log_base);
      Y_data->i = exp(xi * log_base);
      Y_data++;
      xr = ar + i * hr;
      xi = ai + i * hi;
    }
  }

  caml_leave_blocking_section();  /* Disallow other threads */

  CAMLreturn(Val_unit);
}

コード例 #3

ファイル: vec_SD_c.c プロジェクト: ryanrhymes/lacaml

CAMLprim value LFUN(logspace_stub)(value vY, value va, value vb,
                                   value vbase, value vN)
{
  CAMLparam1(vY);
  integer i, GET_INT(N);
  double a = Double_val(va),
         h = (Double_val(vb) - a)/(N - 1),
         base = Double_val(vbase),
         x = a;
  VEC_PARAMS1(Y);

  caml_enter_blocking_section();  /* Allow other threads */

  if (base == 2.0)
    for (i = 1; i <= N; i++) {
      *Y_data = exp2(x);
      Y_data++;
      x = a + i * h;
    }
  else if (base == 10.0)
    for (i = 1; i <= N; i++) {
      *Y_data = exp10(x);
      Y_data++;
      x = a + i * h;
    }
  else if (base == 2.7182818284590452353602874713526625L)
    for (i = 1; i <= N; i++) {
      *Y_data = exp(x);
      Y_data++;
      x = a + i * h;
    }
  else {
    double log_base = log(base);
    for (i = 1; i <= N; i++) {
      *Y_data = exp(x * log_base);
      Y_data++;
      x = a + i * h;
    }
  }

  caml_leave_blocking_section();  /* Disallow other threads */

  CAMLreturn(Val_unit);
}

コード例 #4

ファイル: vec_SD_c.c プロジェクト: ryanrhymes/lacaml

CAMLprim value LFUN(linspace_stub)(value vY, value va, value vb, value vN)
{
  CAMLparam1(vY);
  integer i, GET_INT(N);
  double a = Double_val(va),
         h = (Double_val(vb) - a)/(N - 1),
         x = a;
  VEC_PARAMS1(Y);

  caml_enter_blocking_section();  /* Allow other threads */

  for (i = 1; i <= N; i++) {
    *Y_data = x;
    Y_data++;
    x = a + i * h;
  }

  caml_leave_blocking_section();  /* Disallow other threads */

  CAMLreturn(Val_unit);
}