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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/bind_c_usage_16.f03
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diff --git a/gcc/testsuite/gfortran.dg/bind_c_usage_16.f03 b/gcc/testsuite/gfortran.dg/bind_c_usage_16.f03
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+! { dg-do run }
+! { dg-additional-sources bind_c_usage_16_c.c }
+!
+! PR fortran/34079
+!
+! Ensure character-returning, bind(C) function work.
+!
+module mod
+ use iso_c_binding
+ implicit none
+contains
+ function bar(x) bind(c, name="returnA")
+ character(len=1,kind=c_char) :: bar, x
+ bar = x
+ bar = 'A'
+ end function bar
+ function foo() bind(c, name="returnB")
+ character(len=1,kind=c_char) :: foo
+ foo = 'B'
+ end function foo
+end module mod
+
+subroutine test() bind(c)
+ use mod
+ implicit none
+ character(len=1,kind=c_char) :: a
+ character(len=3,kind=c_char) :: b
+ character(len=1,kind=c_char) :: c(3)
+ character(len=3,kind=c_char) :: d(3)
+ integer :: i
+
+ a = 'z'
+ b = 'fffff'
+ c = 'h'
+ d = 'uuuuu'
+
+ a = bar('x')
+ if (a /= 'A') call abort()
+ b = bar('y')
+ if (b /= 'A' .or. iachar(b(2:2))/=32 .or. iachar(b(3:3))/=32) call abort()
+ c = bar('x')
+ if (any(c /= 'A')) call abort()
+ d = bar('y')
+ if (any(d /= 'A')) call abort()
+
+ a = foo()
+ if (a /= 'B') call abort()
+ b = foo()
+ if (b /= 'B') call abort()
+ c = foo()
+ if (any(c /= 'B')) call abort()
+ d = foo()
+ if (any(d /= 'B')) call abort()
+ do i = 1,3
+ if(iachar(d(i)(2:2)) /=32 .or. iachar(d(i)(3:3)) /= 32) call abort()
+ end do
+end subroutine