logl
extern long double logl(long double x);
__real__ result = logl (hypotl (__real__ x,
w = CMPLXF(w, 0.25L * logl(a));
return logl(2*x - 1/(x+sqrtl(x*x-1)));
return logl(x) + 0.693147180559945309417232121458176568L;
x = logl(x) + 0.693147180559945309417232121458176568L;
x = logl(2*x + 1/(sqrtl(x*x+1)+x));
return -logl(x);
nadj = logl(pi / (t * x));
r = -logl(x);
r += logl(z);
t = logl(x);
r = x * (logl(x) - 1.0);