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! Test for the ISNAN intrinsic on constants
!
! { dg-do run }
! { dg-options "-fno-range-check" }
! { dg-add-options ieee }
!
implicit none
character(len=1) :: s
write(s,'(L1)') isnan(0.)
if (s /= 'F') STOP 1
write(s,'(L1)') isnan(exp(huge(0.)))
if (s /= 'F') STOP 2
write(s,'(L1)') isnan(0./0.)
if (s /= 'T') STOP 3
end
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