gcc/testsuite/gfortran.dg/maxval_char_2.f90

   1 ! { dg-do run }
   2 program main
   3   implicit none
   4   integer, parameter :: n=5, m=3
   5   character(kind=4,len=5), dimension(n) :: a
   6   character(kind=4,len=5), dimension(n,m) :: b
   7   character(kind=4,len=5) :: res
   8   integer, dimension(n,m) :: v
   9   real, dimension(n,m) :: r
  10   integer :: i,j
  11   logical, dimension(n,m) :: mask
  12   character(kind=4,len=5), dimension(:,:), allocatable :: empty
  13   character(kind=4,len=5) , parameter :: all_zero = achar(0) // achar(0) // achar(0) // achar(0) // achar(0)
  14   logical :: smask
  15
  16   write (unit=a,fmt='(I5.5)') (21-i*i+6*i,i=1,n)
  17   res = maxval(a)
  18   if (res /= 4_'00030') STOP 1
  19   do
  20      call random_number(r)
  21      v = int(r * 100)
  22      if (count(v > 20) > 1) exit
  23   end do
  24   write (unit=b,fmt='(I5.5)') v
  25   write (unit=res,fmt='(I5.5)') maxval(v)
  26   if (res /= maxval(b)) STOP 2
  27   smask = .true.
  28   if (res /= maxval(b, smask)) STOP 3
  29   smask = .false.
  30   if (all_zero /= maxval(b, smask)) STOP 4
  31
  32   mask = v > 20
  33   write (unit=res,fmt='(I5.5)') maxval(v,mask)
  34   if (res /= maxval(b, mask)) STOP 5
  35   mask = .false.
  36   if (maxval(b, mask) /= all_zero) STOP 6
  37   allocate (empty(0:3,0))
  38   res = maxval(empty)
  39   if (res /= all_zero) STOP 7
  40 end program main