示例#1
0
COMPILER_RT_ABI Fcomplex __divsc3(float __a, float __b, float __c, float __d) {
  int __ilogbw = 0;
  float __logbw =
      __compiler_rt_logbf(crt_fmaxf(crt_fabsf(__c), crt_fabsf(__d)));
  if (crt_isfinite(__logbw)) {
    __ilogbw = (int)__logbw;
    __c = crt_scalbnf(__c, -__ilogbw);
    __d = crt_scalbnf(__d, -__ilogbw);
  }
  float __denom = __c * __c + __d * __d;
  Fcomplex z;
  COMPLEX_REAL(z) = crt_scalbnf((__a * __c + __b * __d) / __denom, -__ilogbw);
  COMPLEX_IMAGINARY(z) =
      crt_scalbnf((__b * __c - __a * __d) / __denom, -__ilogbw);
  if (crt_isnan(COMPLEX_REAL(z)) && crt_isnan(COMPLEX_IMAGINARY(z))) {
    if ((__denom == 0) && (!crt_isnan(__a) || !crt_isnan(__b))) {
      COMPLEX_REAL(z) = crt_copysignf(CRT_INFINITY, __c) * __a;
      COMPLEX_IMAGINARY(z) = crt_copysignf(CRT_INFINITY, __c) * __b;
    } else if ((crt_isinf(__a) || crt_isinf(__b)) && crt_isfinite(__c) &&
               crt_isfinite(__d)) {
      __a = crt_copysignf(crt_isinf(__a) ? 1 : 0, __a);
      __b = crt_copysignf(crt_isinf(__b) ? 1 : 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 && crt_isfinite(__a) &&
               crt_isfinite(__b)) {
      __c = crt_copysignf(crt_isinf(__c) ? 1 : 0, __c);
      __d = crt_copysignf(crt_isinf(__d) ? 1 : 0, __d);
      COMPLEX_REAL(z) = 0 * (__a * __c + __b * __d);
      COMPLEX_IMAGINARY(z) = 0 * (__b * __c - __a * __d);
    }
  }
  return z;
}
示例#2
0
文件: divxc3.c 项目: 0mp/freebsd
COMPILER_RT_ABI Lcomplex
__divxc3(long double __a, long double __b, long double __c, long double __d)
{
    int __ilogbw = 0;
    long double __logbw = crt_logbl(crt_fmaxl(crt_fabsl(__c), crt_fabsl(__d)));
    if (crt_isfinite(__logbw))
    {
        __ilogbw = (int)__logbw;
        __c = crt_scalbnl(__c, -__ilogbw);
        __d = crt_scalbnl(__d, -__ilogbw);
    }
    long double __denom = __c * __c + __d * __d;
    Lcomplex z;
    COMPLEX_REAL(z) = crt_scalbnl((__a * __c + __b * __d) / __denom, -__ilogbw);
    COMPLEX_IMAGINARY(z) = crt_scalbnl((__b * __c - __a * __d) / __denom, -__ilogbw);
    if (crt_isnan(COMPLEX_REAL(z)) && crt_isnan(COMPLEX_IMAGINARY(z)))
    {
        if ((__denom == 0) && (!crt_isnan(__a) || !crt_isnan(__b)))
        {
            COMPLEX_REAL(z) = crt_copysignl(CRT_INFINITY, __c) * __a;
            COMPLEX_IMAGINARY(z) = crt_copysignl(CRT_INFINITY, __c) * __b;
        }
        else if ((crt_isinf(__a) || crt_isinf(__b)) &&
                 crt_isfinite(__c) && crt_isfinite(__d))
        {
            __a = crt_copysignl(crt_isinf(__a) ? 1 : 0, __a);
            __b = crt_copysignl(crt_isinf(__b) ? 1 : 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 &&
                 crt_isfinite(__a) && crt_isfinite(__b))
        {
            __c = crt_copysignl(crt_isinf(__c) ? 1 : 0, __c);
            __d = crt_copysignl(crt_isinf(__d) ? 1 : 0, __d);
            COMPLEX_REAL(z) = 0 * (__a * __c + __b * __d);
            COMPLEX_IMAGINARY(z) = 0 * (__b * __c - __a * __d);
        }
    }
    return z;
}
示例#3
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;
}
示例#4
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;
}