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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/forall_4.f90
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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/))) call abort ()
+
+! 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/))) call abort ()
+
+! 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/))) call abort ()
+
+! 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/))) call abort ()
+
+! 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/))) call abort ()
+
+! 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/))) call abort ()
+
+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
+! { dg-final { cleanup-modules "foo" } }