diff options
Diffstat (limited to 'gcc/testsuite/gfortran.dg/actual_array_substr_2.f90')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/actual_array_substr_2.f90 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/actual_array_substr_2.f90 b/gcc/testsuite/gfortran.dg/actual_array_substr_2.f90 new file mode 100644 index 000000000..6613751d0 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/actual_array_substr_2.f90 @@ -0,0 +1,44 @@ +! { dg-do run } +! Tests the fix for pr28174, in which the fix for pr28118 was +! corrupting the character lengths of arrays that shared a +! character length structure. In addition, in developing the +! fix, it was noted that intent(out/inout) arguments were not +! getting written back to the calling scope. +! +! Based on the testscase by Harald Anlauf <anlauf@gmx.de> +! +program pr28174 + implicit none + character(len=12) :: teststring(2) = (/ "abc def ghij", & + "klm nop qrst" /) + character(len=12) :: a(2), b(2), c(2), d(2) + integer :: m = 7, n + a = teststring + b = a + c = a + d = a + n = m - 4 + +! Make sure that variable substring references work. + call foo (a(:)(m:m+5), c(:)(n:m+2), d(:)(5:9)) + if (any (a .ne. teststring)) call abort () + if (any (b .ne. teststring)) call abort () + if (any (c .ne. (/"ab456789#hij", & + "kl7654321rst"/))) call abort () + if (any (d .ne. (/"abc 23456hij", & + "klm 98765rst"/))) call abort () +contains + subroutine foo (w, x, y) + character(len=*), intent(in) :: w(:) + character(len=*), intent(inOUT) :: x(:) + character(len=*), intent(OUT) :: y(:) + character(len=12) :: foostring(2) = (/"0123456789#$" , & + "$#9876543210"/) +! This next is not required by the standard but tests the +! functioning of the gfortran implementation. +! if (all (x(:)(3:7) .eq. y)) call abort () + x = foostring (:)(5 : 4 + len (x)) + y = foostring (:)(3 : 2 + len (y)) + end subroutine foo +end program pr28174 + |