gcc/testsuite/gfortran.dg/char_length_5.f90

   1 ! { dg-do run }
   2 ! Tests the fix for PR31867, in which the interface evaluation
   3 ! of the character length of 'join' (ie. the length available in
   4 ! the caller) was wrong.
   5 !
   6 ! Contributed by <beliavsky@aol.com>
   7 !
   8 module util_mod
   9   implicit none
  10 contains
  11   function join (words, sep) result(str)
  12     character (len=*), intent(in)        :: words(:),sep
  13     character (len = (size (words) - 1) * len_trim (sep) + &
  14                sum (len_trim (words)))   :: str
  15     integer                              :: i,nw
  16     nw  = size (words)
  17     str = ""
  18     if (nw < 1) then
  19       return
  20     else
  21       str = words(1)
  22     end if
  23     do i=2,nw
  24       str = trim (str) // trim (sep) // words(i)
  25     end do
  26   end function join
  27 end module util_mod
  28 !
  29 program xjoin
  30   use util_mod, only: join
  31   implicit none
  32   integer yy
  33   character (len=5) :: words(5:8) = (/"two  ","three","four ","five "/), sep = "^#^"
  34   character (len=5) :: words2(4) = (/"bat  ","ball ","goal ","stump"/), sep2 = "&"
  35
  36   if (join (words, sep) .ne. "two^#^three^#^four^#^five") call abort ()
  37   if (len (join (words, sep)) .ne. 25) call abort ()
  38
  39   if (join (words(5:6), sep) .ne. "two^#^three") call abort ()
  40   if (len (join (words(5:6), sep)) .ne. 11) call abort ()
  41
  42   if (join (words(7:8), sep) .ne. "four^#^five") call abort ()
  43   if (len (join (words(7:8), sep)) .ne. 11) call abort ()
  44
  45   if (join (words(5:7:2), sep) .ne. "two^#^four") call abort ()
  46   if (len (join (words(5:7:2), sep)) .ne. 10) call abort ()
  47
  48   if (join (words(6:8:2), sep) .ne. "three^#^five") call abort ()
  49   if (len (join (words(6:8:2), sep)) .ne. 12) call abort ()
  50
  51   if (join (words2, sep2) .ne. "bat&ball&goal&stump") call abort ()
  52   if (len (join (words2, sep2)) .ne. 19) call abort ()
  53
  54   if (join (words2(1:2), sep2) .ne. "bat&ball") call abort ()
  55   if (len (join (words2(1:2), sep2)) .ne. 8) call abort ()
  56
  57   if (join (words2(2:4:2), sep2) .ne. "ball&stump") call abort ()
  58   if (len (join (words2(2:4:2), sep2)) .ne. 10) call abort ()
  59
  60 end program xjoin