testall0
testall0(NAN, NAN, ALL_STD_EXCEPT, 0);
testall0(INFINITY, INFINITY, ALL_STD_EXCEPT, 0);
testall0(-INFINITY, 0.0, ALL_STD_EXCEPT, 0);
testall0(50000.0, INFINITY, ALL_STD_EXCEPT & ~FE_INEXACT, FE_OVERFLOW);
testall0(-50000.0, 0.0, ALL_STD_EXCEPT, FE_UNDERFLOW | FE_INEXACT);
testall0(0.0, 1.0, ALL_STD_EXCEPT, 0);
testall0(-0.0, 1.0, ALL_STD_EXCEPT, 0);
testall0(1.0, 0.0, ALL_STD_EXCEPT, 0);
testall0(NAN, NAN, ALL_STD_EXCEPT, 0);
testall0(INFINITY, INFINITY, ALL_STD_EXCEPT, 0);
testall0(-INFINITY, NAN, ALL_STD_EXCEPT, FE_INVALID);
testall0(-1.0, NAN, ALL_STD_EXCEPT, FE_INVALID);
testall0(0.0, -INFINITY, ALL_STD_EXCEPT & ~FE_INEXACT, FE_DIVBYZERO);
testall0(-0.0, -INFINITY, ALL_STD_EXCEPT & ~FE_INEXACT, FE_DIVBYZERO);
testall0(1.0, 0.0, ALL_STD_EXCEPT, 0);
testall0(1.0, 0.0, ALL_STD_EXCEPT, 0);
testall0(1.0, 0.0, ALL_STD_EXCEPT, 0);