gcc/testsuite/gfortran.dg/string_ctor_1.f90

   1 ! { dg-do run }
   2 ! { dg-options "-std=legacy" }
   3 !
   4 ! Program to test character array constructors.
   5 ! PR17144
   6 subroutine test1 (n, t, u)
   7   integer n
   8   character(len=n) :: s(2)
   9   character(len=*) :: t
  10   character(len=*) :: u
  11
  12   ! A variable array constructor.
  13   s = (/t, u/)
  14   ! An array constructor as part of an expression.
  15   if (any (s .ne. (/"Hell", "Worl"/))) STOP 1
  16 end subroutine
  17
  18 subroutine test2
  19   character*5 :: s(2)
  20
  21   ! A constant array constructor
  22   s = (/"Hello", "World"/)
  23   if ((s(1) .ne. "Hello") .or. (s(2) .ne. "World")) STOP 2
  24 end subroutine
  25
  26 subroutine test3
  27   character*1 s(26)
  28   character*26 t
  29   integer i
  30
  31   ! A large array constructor
  32   s = (/'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', &
  33         'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'/)
  34   do i=1, 26
  35     t(i:i) = s(i)
  36   end do
  37
  38   ! Assignment with dependency
  39   s = (/(s(27-i), i=1, 26)/)
  40   do i=1, 26
  41     t(i:i) = s(i)
  42   end do
  43   if (t .ne. "zyxwvutsrqponmlkjihgfedcba") STOP 3
  44 end subroutine
  45
  46 program string_ctor_1
  47   call test1 (4, "Hello", "World")
  48   call test2
  49   call test3
  50 end program
  51