gnu / gcc / 93ac832f1846e4867aa6537f76f510fab8e3e87d / . / gcc / testsuite / gfortran.dg / c-interop / size.f90

! Reported as pr94070. | |

! { dg-do run } | |

! | |

! TS 29113 | |

! 6.4.2 SIZE | |

! | |

! The description of the intrinsic function SIZE in ISO/IEC 1539-1:2010 | |

! is changed in the following cases: | |

! | |

! (1) for an assumed-rank object that is associated with an assumed-size | |

! array, the result has the value −1 if DIM is present and equal to the | |

! rank of ARRAY, and a negative value that is equal to | |

! PRODUCT ( [ (SIZE (ARRAY, I, KIND), I=1, RANK (ARRAY)) ] ) | |

! if DIM is not present; | |

! | |

! (2) for an assumed-rank object that is associated with a scalar, the | |

! result has the value 1. | |

! | |

! The idea here is that the main program passes some arrays to a test | |

! subroutine with an assumed-size dummy, which in turn passes that to a | |

! subroutine with an assumed-rank dummy. | |

program test | |

! Define some arrays for testing. | |

integer, target :: x1(5) | |

integer :: y1(0:9) | |

integer, pointer :: p1(:) | |

integer, allocatable :: a1(:) | |

integer, target :: x3(2,3,4) | |

integer :: y3(0:1,-3:-1,4) | |

integer, pointer :: p3(:,:,:) | |

integer, allocatable :: a3(:,:,:) | |

integer :: x | |

! Test the 1-dimensional arrays. | |

call test1 (x1) | |

call test1 (y1) | |

p1 => x1 | |

call test1 (p1) | |

allocate (a1(5)) | |

call test1 (a1) | |

! Test the multi-dimensional arrays. | |

call test3 (x3, 1, 2, 1, 3) | |

call test3 (y3, 0, 1, -3, -1) | |

p3 => x3 | |

call test3 (p3, 1, 2, 1, 3) | |

allocate (a3(2,3,4)) | |

call test3 (a3, 1, 2, 1, 3) | |

! Test scalars. | |

call test0 (x) | |

call test0 (-1) | |

call test0 (x1(1)) | |

contains | |

subroutine testit (a, r, sizes) | |

integer :: a(..) | |

integer :: r | |

integer :: sizes(r) | |

integer :: totalsize, thissize | |

totalsize = 1 | |

if (r .ne. rank(a)) stop 101 | |

do i = 1, r | |

thissize = size (a, i) | |

print *, 'got size ', thissize, ' expected ', sizes(i) | |

if (thissize .ne. sizes(i)) stop 102 | |

totalsize = totalsize * thissize | |

end do | |

if (size(a) .ne. totalsize) stop 103 | |

end subroutine | |

subroutine test0 (a) | |

integer :: a(..) | |

if (size (a) .ne. 1) stop 103 | |

end subroutine | |

subroutine test1 (a) | |

integer :: a(*) | |

integer :: sizes(1) | |

sizes(1) = -1 | |

call testit (a, 1, sizes) | |

end subroutine | |

subroutine test3 (a, l1, u1, l2, u2) | |

implicit none | |

integer :: l1, u1, l2, u2 | |

integer :: a(l1:u1, l2:u2, *) | |

integer :: sizes(3) | |

sizes(1) = u1 - l1 + 1 | |

sizes(2) = u2 - l2 + 1 | |

sizes(3) = -1 | |

call testit (a, 3, sizes) | |

end subroutine | |

end program |