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jeremybenn |
! { dg-do run }
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! { dg-options "-fno-range-check -pedantic" }
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! { dg-add-options ieee }
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! { dg-skip-if "NaN not supported" { spu-*-* } { "*" } { "" } }
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!
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! PR fortran/34333
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!
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! Check that (NaN /= NaN) == .TRUE.
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! and some other NaN options.
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!
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! Contrary to nan_1.f90, PARAMETERs are used and thus
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! the front end resolves the min, max and binary operators at
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! compile time.
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!
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module aux2
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interface isinf
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module procedure isinf_r
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module procedure isinf_d
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end interface isinf
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contains
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pure function isinf_r(x) result (isinf)
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logical :: isinf
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real, intent(in) :: x
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isinf = (x > huge(x)) .or. (x < -huge(x))
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end function isinf_r
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pure function isinf_d(x) result (isinf)
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logical :: isinf
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double precision, intent(in) :: x
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isinf = (x > huge(x)) .or. (x < -huge(x))
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end function isinf_d
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end module aux2
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program test
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use aux2
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implicit none
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real, parameter :: nan = 0.0/0.0, large = huge(large), inf = 1.0/0.0
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if (nan == nan .or. nan > nan .or. nan < nan .or. nan >= nan &
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.or. nan <= nan) call abort
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if (isnan (2.d0) .or. (.not. isnan(nan)) .or. &
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(.not. isnan(real(nan,kind=kind(2.d0))))) call abort
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! Create an INF and check it
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if (isinf(nan) .or. isinf(large) .or. .not. isinf(inf)) call abort
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if (isinf(-nan) .or. isinf(-large) .or. .not. isinf(-inf)) call abort
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! Check that MIN and MAX behave correctly
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if (max(2.0, nan) /= 2.0) call abort
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if (min(2.0, nan) /= 2.0) call abort
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if (max(nan, 2.0) /= 2.0) call abort
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if (min(nan, 2.0) /= 2.0) call abort
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if (max(2.d0, nan) /= 2.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (min(2.d0, nan) /= 2.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (max(nan, 2.d0) /= 2.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (min(nan, 2.d0) /= 2.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (.not. isnan(min(nan,nan))) call abort
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if (.not. isnan(max(nan,nan))) call abort
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! Same thing, with more arguments
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if (max(3.0, 2.0, nan) /= 3.0) call abort
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if (min(3.0, 2.0, nan) /= 2.0) call abort
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if (max(3.0, nan, 2.0) /= 3.0) call abort
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if (min(3.0, nan, 2.0) /= 2.0) call abort
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if (max(nan, 3.0, 2.0) /= 3.0) call abort
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if (min(nan, 3.0, 2.0) /= 2.0) call abort
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if (max(3.d0, 2.d0, nan) /= 3.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (min(3.d0, 2.d0, nan) /= 2.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (max(3.d0, nan, 2.d0) /= 3.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (min(3.d0, nan, 2.d0) /= 2.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (max(nan, 3.d0, 2.d0) /= 3.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (min(nan, 3.d0, 2.d0) /= 2.d0) call abort ! { dg-warning "Extension: Different type kinds" }
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if (.not. isnan(min(nan,nan,nan))) call abort
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if (.not. isnan(max(nan,nan,nan))) call abort
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if (.not. isnan(min(nan,nan,nan,nan))) call abort
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if (.not. isnan(max(nan,nan,nan,nan))) call abort
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if (.not. isnan(min(nan,nan,nan,nan,nan))) call abort
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if (.not. isnan(max(nan,nan,nan,nan,nan))) call abort
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! Large values, INF and NaNs
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if (.not. isinf(max(large, inf))) call abort
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if (isinf(min(large, inf))) call abort
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if (.not. isinf(max(nan, large, inf))) call abort
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if (isinf(min(nan, large, inf))) call abort
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if (.not. isinf(max(large, nan, inf))) call abort
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if (isinf(min(large, nan, inf))) call abort
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if (.not. isinf(max(large, inf, nan))) call abort
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if (isinf(min(large, inf, nan))) call abort
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if (.not. isinf(min(-large, -inf))) call abort
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if (isinf(max(-large, -inf))) call abort
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if (.not. isinf(min(nan, -large, -inf))) call abort
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if (isinf(max(nan, -large, -inf))) call abort
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if (.not. isinf(min(-large, nan, -inf))) call abort
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if (isinf(max(-large, nan, -inf))) call abort
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if (.not. isinf(min(-large, -inf, nan))) call abort
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if (isinf(max(-large, -inf, nan))) call abort
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end program test
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! { dg-final { cleanup-modules "aux2" } }
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