gcc/testsuite/gfortran.fortran-torture/execute/where18.f90

   1 ! Check to ensure mask is calculated first in WHERE
   2 ! statements.
   3 program where_18
   4    integer :: a(4)
   5    integer :: b(3)
   6    integer :: c(3)
   7    equivalence (a(1), b(1)), (a(2), c(1))
   8
   9    a = (/1, 1, 1, 1/)
  10    where (b .eq. 1)
  11      c = 2
  12    elsewhere (b .eq. 2)
  13      c = 3
  14    endwhere
  15    if (any (a .ne. (/1, 2, 2, 2/))) &
  16      STOP 1
  17
  18    a = (/1, 1, 1, 1/)
  19    where (c .eq. 1)
  20      b = 2
  21    elsewhere (b .eq. 2)
  22      b = 3
  23    endwhere
  24    if (any (a .ne. (/2, 2, 2, 1/))) &
  25      STOP 2
  26 end program