! Test for the ISNAN intrinsic | |
! | |
! { dg-do run } | |
! { dg-add-options ieee } | |
! | |
implicit none | |
real :: x | |
x = -1.0 | |
x = sqrt(x) | |
if (.not. isnan(x)) STOP 1 | |
x = 0.0 | |
x = x / x | |
if (.not. isnan(x)) STOP 2 | |
x = 5.0 | |
if (isnan(x)) STOP 3 | |
x = huge(x) | |
x = 2*x | |
if (isnan(x)) STOP 4 | |
end |