gcc/testsuite/gfortran.dg/c_sizeof_1.f90

   1 ! { dg-do run }
   2 ! Support F2008's c_sizeof()
   3 !
   4 use iso_c_binding, only: c_int, c_char, c_ptr, c_intptr_t, c_null_ptr
   5
   6 integer(kind=c_int) :: i, j(10)
   7 character(kind=c_char,len=4),parameter :: str(1) = "abcd"
   8 type(c_ptr) :: cptr
   9 integer(c_intptr_t) :: iptr
  10
  11 ! Using F2008's C_SIZEOF
  12 i = c_sizeof(i)
  13 if (i /= 4) call abort()
  14
  15 i = c_sizeof(j)
  16 if (i /= 40) call abort()
  17
  18 i = c_sizeof(str)
  19 if (i /= 4) call abort()
  20
  21 i = c_sizeof(str(1))
  22 if (i /= 4) call abort()
  23
  24 i = c_sizeof(str(1)(1:3))
  25 if (i /= 3) call abort()
  26
  27 write(*,*) c_sizeof(cptr), c_sizeof(iptr), c_sizeof(C_NULL_PTR)
  28
  29 ! Using GNU's SIZEOF
  30 i = sizeof(i)
  31 if (i /= 4) call abort()
  32
  33 i = sizeof(j)
  34 if (i /= 40) call abort()
  35
  36 i = sizeof(str)
  37 if (i /= 4) call abort()
  38
  39 i = sizeof(str(1))
  40 if (i /= 4) call abort()
  41
  42 i = sizeof(str(1)(1:3))
  43 if (i /= 3) call abort()
  44
  45 end
  46