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! Test for the ISNAN intrinsic
!
! { dg-do run }
! { dg-options "-pedantic-errors -mieee" { target alpha*-*-* sh*-*-* } }
! { dg-skip-if "NaN not supported" { spu-*-* } { "*" } { "" } }
!
implicit none
real :: x
x = -1.0
x = sqrt(x)
if (.not. isnan(x)) call abort
x = 0.0
x = x / x
if (.not. isnan(x)) call abort
x = 5.0
if (isnan(x)) call abort
x = huge(x)
x = 2*x
if (isnan(x)) call abort
end
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