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! { dg-do run }
! Tests the fix for PR25072, in which mask expressions
! that start with an internal or intrinsic function
! reference would give a syntax error.
!
! The fix for PR28119 is tested as well; here, the forall
! statement could not be followed by another statement on
! the same line.
!
! Contributed by Paul Thomas <pault@gcc.gnu.org>
!
module foo
integer, parameter :: n = 4
contains
pure logical function foot (i)
integer, intent(in) :: i
foot = (i == 2) .or. (i == 3)
end function foot
end module foo
use foo
integer :: i, a(n)
logical :: s(n)
s = (/(foot (i), i=1, n)/)
! Check that non-mask case is still OK and the fix for PR28119
a = 0
forall (i=1:n) a(i) = i ; if (any (a .ne. (/1,2,3,4/))) STOP 1
! Now a mask using a function with an explicit interface
! via use association.
a = 0
forall (i=1:n, foot (i)) a(i) = i
if (any (a .ne. (/0,2,3,0/))) STOP 2
! Now an array variable mask
a = 0
forall (i=1:n, .not. s(i)) a(i) = i
if (any (a .ne. (/1,0,0,4/))) STOP 3
! This was the PR - an internal function mask
a = 0
forall (i=1:n, t (i)) a(i) = i
if (any (a .ne. (/0,2,0,4/))) STOP 4
! Check that an expression is OK - this also gave a syntax
! error
a = 0
forall (i=1:n, mod (i, 2) == 0) a(i) = i
if (any (a .ne. (/0,2,0,4/))) STOP 5
! And that an expression that used to work is OK
a = 0
forall (i=1:n, s (i) .or. t(i)) a(i) = w (i)
if (any (a .ne. (/0,3,2,1/))) STOP 6
contains
pure logical function t(i)
integer, intent(in) :: i
t = (mod (i, 2) == 0)
end function t
pure integer function w(i)
integer, intent(in) :: i
w = 5 - i
end function w
end
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