| ! { dg-do run } |
| ! { dg-options "-fno-range-check -pedantic" } |
| ! { dg-add-options ieee } |
| ! |
| ! PR fortran/34333 |
| ! |
| ! Check that (NaN /= NaN) == .TRUE. |
| ! and some other NaN options. |
| ! |
| ! Contrary to nan_1.f90, PARAMETERs are used and thus |
| ! the front end resolves the min, max and binary operators at |
| ! compile time. |
| ! |
| |
| module aux2 |
| interface isinf |
| module procedure isinf_r |
| module procedure isinf_d |
| end interface isinf |
| contains |
| pure function isinf_r(x) result (isinf) |
| logical :: isinf |
| real, intent(in) :: x |
| |
| isinf = (x > huge(x)) .or. (x < -huge(x)) |
| end function isinf_r |
| |
| pure function isinf_d(x) result (isinf) |
| logical :: isinf |
| double precision, intent(in) :: x |
| |
| isinf = (x > huge(x)) .or. (x < -huge(x)) |
| end function isinf_d |
| end module aux2 |
| |
| program test |
| use aux2 |
| implicit none |
| real, parameter :: nan = 0.0/0.0, large = huge(large), inf = 1.0/0.0 |
| |
| if (nan == nan .or. nan > nan .or. nan < nan .or. nan >= nan & |
| .or. nan <= nan) STOP 1 |
| if (isnan (2.d0) .or. (.not. isnan(nan)) .or. & |
| (.not. isnan(real(nan,kind=kind(2.d0))))) STOP 2 |
| |
| ! Create an INF and check it |
| if (isinf(nan) .or. isinf(large) .or. .not. isinf(inf)) STOP 3 |
| if (isinf(-nan) .or. isinf(-large) .or. .not. isinf(-inf)) STOP 4 |
| |
| ! Check that MIN and MAX behave correctly |
| if (max(2.0, nan) /= 2.0) STOP 5 |
| if (min(2.0, nan) /= 2.0) STOP 6 |
| if (max(nan, 2.0) /= 2.0) STOP 7 |
| if (min(nan, 2.0) /= 2.0) STOP 8 |
| |
| if (max(2.d0, nan) /= 2.d0) STOP 9! { dg-warning "Extension: Different type kinds" } |
| if (min(2.d0, nan) /= 2.d0) STOP 10! { dg-warning "Extension: Different type kinds" } |
| if (max(nan, 2.d0) /= 2.d0) STOP 11! { dg-warning "Extension: Different type kinds" } |
| if (min(nan, 2.d0) /= 2.d0) STOP 12! { dg-warning "Extension: Different type kinds" } |
| |
| if (.not. isnan(min(nan,nan))) STOP 13 |
| if (.not. isnan(max(nan,nan))) STOP 14 |
| |
| ! Same thing, with more arguments |
| |
| if (max(3.0, 2.0, nan) /= 3.0) STOP 15 |
| if (min(3.0, 2.0, nan) /= 2.0) STOP 16 |
| if (max(3.0, nan, 2.0) /= 3.0) STOP 17 |
| if (min(3.0, nan, 2.0) /= 2.0) STOP 18 |
| if (max(nan, 3.0, 2.0) /= 3.0) STOP 19 |
| if (min(nan, 3.0, 2.0) /= 2.0) STOP 20 |
| |
| if (max(3.d0, 2.d0, nan) /= 3.d0) STOP 21! { dg-warning "Extension: Different type kinds" } |
| if (min(3.d0, 2.d0, nan) /= 2.d0) STOP 22! { dg-warning "Extension: Different type kinds" } |
| if (max(3.d0, nan, 2.d0) /= 3.d0) STOP 23! { dg-warning "Extension: Different type kinds" } |
| if (min(3.d0, nan, 2.d0) /= 2.d0) STOP 24! { dg-warning "Extension: Different type kinds" } |
| if (max(nan, 3.d0, 2.d0) /= 3.d0) STOP 25! { dg-warning "Extension: Different type kinds" } |
| if (min(nan, 3.d0, 2.d0) /= 2.d0) STOP 26! { dg-warning "Extension: Different type kinds" } |
| |
| if (.not. isnan(min(nan,nan,nan))) STOP 27 |
| if (.not. isnan(max(nan,nan,nan))) STOP 28 |
| if (.not. isnan(min(nan,nan,nan,nan))) STOP 29 |
| if (.not. isnan(max(nan,nan,nan,nan))) STOP 30 |
| if (.not. isnan(min(nan,nan,nan,nan,nan))) STOP 31 |
| if (.not. isnan(max(nan,nan,nan,nan,nan))) STOP 32 |
| |
| ! Large values, INF and NaNs |
| if (.not. isinf(max(large, inf))) STOP 33 |
| if (isinf(min(large, inf))) STOP 34 |
| if (.not. isinf(max(nan, large, inf))) STOP 35 |
| if (isinf(min(nan, large, inf))) STOP 36 |
| if (.not. isinf(max(large, nan, inf))) STOP 37 |
| if (isinf(min(large, nan, inf))) STOP 38 |
| if (.not. isinf(max(large, inf, nan))) STOP 39 |
| if (isinf(min(large, inf, nan))) STOP 40 |
| |
| if (.not. isinf(min(-large, -inf))) STOP 41 |
| if (isinf(max(-large, -inf))) STOP 42 |
| if (.not. isinf(min(nan, -large, -inf))) STOP 43 |
| if (isinf(max(nan, -large, -inf))) STOP 44 |
| if (.not. isinf(min(-large, nan, -inf))) STOP 45 |
| if (isinf(max(-large, nan, -inf))) STOP 46 |
| if (.not. isinf(min(-large, -inf, nan))) STOP 47 |
| if (isinf(max(-large, -inf, nan))) STOP 48 |
| |
| end program test |