Exemple #1
0
double _Complex
__divdc3(double __a, double __b, double __c, double __d)
{
    int __ilogbw = 0;
    double __logbw = crt_logb(crt_fmax(crt_fabs(__c), crt_fabs(__d)));
    if (crt_isfinite(__logbw))
    {
        __ilogbw = (int)__logbw;
        __c = crt_scalbn(__c, -__ilogbw);
        __d = crt_scalbn(__d, -__ilogbw);
    }
    double __denom = __c * __c + __d * __d;
    double _Complex z;
    __real__ z = crt_scalbn((__a * __c + __b * __d) / __denom, -__ilogbw);
    __imag__ z = crt_scalbn((__b * __c - __a * __d) / __denom, -__ilogbw);
    if (crt_isnan(__real__ z) && crt_isnan(__imag__ z))
    {
        if ((__denom == 0.0) && (!crt_isnan(__a) || !crt_isnan(__b)))
        {
            __real__ z = crt_copysign(CRT_INFINITY, __c) * __a;
            __imag__ z = crt_copysign(CRT_INFINITY, __c) * __b;
        }
        else if ((crt_isinf(__a) || crt_isinf(__b)) &&
                 crt_isfinite(__c) && crt_isfinite(__d))
        {
            __a = crt_copysign(crt_isinf(__a) ? 1.0 : 0.0, __a);
            __b = crt_copysign(crt_isinf(__b) ? 1.0 : 0.0, __b);
            __real__ z = CRT_INFINITY * (__a * __c + __b * __d);
            __imag__ z = CRT_INFINITY * (__b * __c - __a * __d);
        }
        else if (crt_isinf(__logbw) && __logbw > 0.0 &&
                 crt_isfinite(__a) && crt_isfinite(__b))
        {
            __c = crt_copysign(crt_isinf(__c) ? 1.0 : 0.0, __c);
            __d = crt_copysign(crt_isinf(__d) ? 1.0 : 0.0, __d);
            __real__ z = 0.0 * (__a * __c + __b * __d);
            __imag__ z = 0.0 * (__b * __c - __a * __d);
        }
    }
    return z;
}
Exemple #2
0
COMPILER_RT_ABI Dcomplex
__divdc3(double __a, double __b, double __c, double __d)
{
    int __ilogbw = 0;
    double __logbw = crt_logb(crt_fmax(crt_fabs(__c), crt_fabs(__d)));
    if (crt_isfinite(__logbw))
    {
        __ilogbw = (int)__logbw;
        __c = crt_scalbn(__c, -__ilogbw);
        __d = crt_scalbn(__d, -__ilogbw);
    }
    double __denom = __c * __c + __d * __d;
    Dcomplex z;
    COMPLEX_REAL(z) = crt_scalbn((__a * __c + __b * __d) / __denom, -__ilogbw);
    COMPLEX_IMAGINARY(z) = crt_scalbn((__b * __c - __a * __d) / __denom, -__ilogbw);
    if (crt_isnan(COMPLEX_REAL(z)) && crt_isnan(COMPLEX_IMAGINARY(z)))
    {
        if ((__denom == 0.0) && (!crt_isnan(__a) || !crt_isnan(__b)))
        {
            COMPLEX_REAL(z) = crt_copysign(CRT_INFINITY, __c) * __a;
            COMPLEX_IMAGINARY(z) = crt_copysign(CRT_INFINITY, __c) * __b;
        }
        else if ((crt_isinf(__a) || crt_isinf(__b)) &&
                 crt_isfinite(__c) && crt_isfinite(__d))
        {
            __a = crt_copysign(crt_isinf(__a) ? 1.0 : 0.0, __a);
            __b = crt_copysign(crt_isinf(__b) ? 1.0 : 0.0, __b);
            COMPLEX_REAL(z) = CRT_INFINITY * (__a * __c + __b * __d);
            COMPLEX_IMAGINARY(z) = CRT_INFINITY * (__b * __c - __a * __d);
        }
        else if (crt_isinf(__logbw) && __logbw > 0.0 &&
                 crt_isfinite(__a) && crt_isfinite(__b))
        {
            __c = crt_copysign(crt_isinf(__c) ? 1.0 : 0.0, __c);
            __d = crt_copysign(crt_isinf(__d) ? 1.0 : 0.0, __d);
            COMPLEX_REAL(z) = 0.0 * (__a * __c + __b * __d);
            COMPLEX_IMAGINARY(z) = 0.0 * (__b * __c - __a * __d);
        }
    }
    return z;
}
Exemple #3
0
COMPILER_RT_ABI Dcomplex __muldc3(double __a, double __b, double __c,
                                  double __d) {
  double __ac = __a * __c;
  double __bd = __b * __d;
  double __ad = __a * __d;
  double __bc = __b * __c;
  Dcomplex z;
  COMPLEX_REAL(z) = __ac - __bd;
  COMPLEX_IMAGINARY(z) = __ad + __bc;
  if (crt_isnan(COMPLEX_REAL(z)) && crt_isnan(COMPLEX_IMAGINARY(z))) {
    int __recalc = 0;
    if (crt_isinf(__a) || crt_isinf(__b)) {
      __a = crt_copysign(crt_isinf(__a) ? 1 : 0, __a);
      __b = crt_copysign(crt_isinf(__b) ? 1 : 0, __b);
      if (crt_isnan(__c))
        __c = crt_copysign(0, __c);
      if (crt_isnan(__d))
        __d = crt_copysign(0, __d);
      __recalc = 1;
    }
    if (crt_isinf(__c) || crt_isinf(__d)) {
      __c = crt_copysign(crt_isinf(__c) ? 1 : 0, __c);
      __d = crt_copysign(crt_isinf(__d) ? 1 : 0, __d);
      if (crt_isnan(__a))
        __a = crt_copysign(0, __a);
      if (crt_isnan(__b))
        __b = crt_copysign(0, __b);
      __recalc = 1;
    }
    if (!__recalc && (crt_isinf(__ac) || crt_isinf(__bd) || crt_isinf(__ad) ||
                      crt_isinf(__bc))) {
      if (crt_isnan(__a))
        __a = crt_copysign(0, __a);
      if (crt_isnan(__b))
        __b = crt_copysign(0, __b);
      if (crt_isnan(__c))
        __c = crt_copysign(0, __c);
      if (crt_isnan(__d))
        __d = crt_copysign(0, __d);
      __recalc = 1;
    }
    if (__recalc) {
      COMPLEX_REAL(z) = CRT_INFINITY * (__a * __c - __b * __d);
      COMPLEX_IMAGINARY(z) = CRT_INFINITY * (__a * __d + __b * __c);
    }
  }
  return z;
}
Exemple #4
0
double _Complex
__muldc3(double __a, double __b, double __c, double __d)
{
    double __ac = __a * __c;
    double __bd = __b * __d;
    double __ad = __a * __d;
    double __bc = __b * __c;
    double _Complex z;
    __real__ z = __ac - __bd;
    __imag__ z = __ad + __bc;
    if (crt_isnan(__real__ z) && crt_isnan(__imag__ z))
    {
        int __recalc = 0;
        if (crt_isinf(__a) || crt_isinf(__b))
        {
            __a = crt_copysign(crt_isinf(__a) ? 1 : 0, __a);
            __b = crt_copysign(crt_isinf(__b) ? 1 : 0, __b);
            if (crt_isnan(__c))
                __c = crt_copysign(0, __c);
            if (crt_isnan(__d))
                __d = crt_copysign(0, __d);
            __recalc = 1;
        }
        if (crt_isinf(__c) || crt_isinf(__d))
        {
            __c = crt_copysign(crt_isinf(__c) ? 1 : 0, __c);
            __d = crt_copysign(crt_isinf(__d) ? 1 : 0, __d);
            if (crt_isnan(__a))
                __a = crt_copysign(0, __a);
            if (crt_isnan(__b))
                __b = crt_copysign(0, __b);
            __recalc = 1;
        }
        if (!__recalc && (crt_isinf(__ac) || crt_isinf(__bd) ||
                          crt_isinf(__ad) || crt_isinf(__bc)))
        {
            if (crt_isnan(__a))
                __a = crt_copysign(0, __a);
            if (crt_isnan(__b))
                __b = crt_copysign(0, __b);
            if (crt_isnan(__c))
                __c = crt_copysign(0, __c);
            if (crt_isnan(__d))
                __d = crt_copysign(0, __d);
            __recalc = 1;
        }
        if (__recalc)
        {
            __real__ z = CRT_INFINITY * (__a * __c - __b * __d);
            __imag__ z = CRT_INFINITY * (__a * __d + __b * __c);
        }
    }
    return z;
}