gcc/testsuite/gfortran.dg/intrinsic_optional_char_arg_1.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-fdump-tree-original" }
   3
   4 ! PR fortran/36403
   5 ! Check that string lengths of optional arguments are added to the library-call
   6 ! even if those arguments are missing.
   7
   8 PROGRAM main
   9   IMPLICIT NONE
  10
  11   CHARACTER(len=1) :: vect(4)
  12   CHARACTER(len=1) :: matrix(2, 2)
  13
  14   matrix(1, 1) = ""
  15   matrix(2, 1) = "a"
  16   matrix(1, 2) = "b"
  17   matrix(2, 2) = ""
  18   vect = (/ "w", "x", "y", "z" /)
  19
  20   ! Call the affected intrinsics
  21   vect = EOSHIFT (vect, 2)
  22   vect = PACK (matrix, matrix /= "")
  23   matrix = RESHAPE (vect, (/ 2, 2 /))
  24
  25 END PROGRAM main
  26
  27 ! All library function should be called with *two* trailing arguments "1" for
  28 ! the string lengths of both the main array and the optional argument:
  29 ! { dg-final { scan-tree-dump "_eoshift\[0-9_\]+char \\(\[&a-zA-Z0-9._, \]+, 1, 0\\)" "original" } }
  30 ! { dg-final { scan-tree-dump "_reshape\[0-9_\]+char \\(\[&a-zA-Z0-9._, \]+, 1, 0\\)" "original" } }
  31 ! { dg-final { scan-tree-dump "_pack\[0-9_\]+char \\(\[&a-zA-Z0-9._, \]+, 1, 0\\)" "original" } }
  32 ! { dg-final { cleanup-tree-dump "original" } }