gcc/testsuite/gfortran.dg/char_length_2.f90

   1 ! { dg-do link }
   2 ! { dg-options "-Wsurprising" }
   3 ! Tests the fix for PR 31250
   4 ! CHARACTER lengths weren't reduced early enough for all checks of
   5 ! them to be meaningful.  Furthermore negative string lengths weren't
   6 ! dealt with correctly.
   7 CHARACTER(len=0) :: c1   ! This is OK.
   8 CHARACTER(len=-1) :: c2  ! { dg-warning "has negative length" }
   9 PARAMETER(I=-100)
  10 CHARACTER(len=I) :: c3   ! { dg-warning "has negative length" }
  11 CHARACTER(len=min(I,500)) :: c4  ! { dg-warning "has negative length" }
  12 CHARACTER(len=max(I,500)) :: d1  ! no warning
  13 CHARACTER(len=5) :: d2   ! no warning
  14
  15 if (len(c1) .ne. 0) call link_error ()
  16 if (len(c2) .ne. len(c1)) call link_error ()
  17 if (len(c3) .ne. len(c2)) call link_error ()
  18 if (len(c4) .ne. len(c3)) call link_error ()
  19
  20 if (len(d1) .ne. 500) call link_error ()
  21 if (len(d2) .ne. 5) call link_error ()
  22 END