gcc/testsuite/gfortran.dg/maxval_char_1.f90

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