libffi/testsuite/libffi.call/cls_uint_va.c

   1 /* Area:        closure_call
   2    Purpose:     Test anonymous unsigned int argument.
   3    Limitations: none.
   4    PR:          none.
   5    Originator:  ARM Ltd. */
   6
   7 /* { dg-do run } */
   8
   9 #include "ffitest.h"
  10
  11 typedef unsigned int T;
  12
  13 static void cls_ret_T_fn(ffi_cif* cif __UNUSED__, void* resp, void** args,
  14                          void* userdata __UNUSED__)
  15  {
  16    *(ffi_arg *)resp = *(T *)args[0];
  17
  18    printf("%d: %d %d\n", (int)*(ffi_arg *)resp, *(T *)args[0], *(T *)args[1]);
  19  }
  20
  21 typedef T (*cls_ret_T)(T, ...);
  22
  23 int main (void)
  24 {
  25   ffi_cif cif;
  26   void *code;
  27   ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
  28   ffi_type * cl_arg_types[3];
  29   T res;
  30
  31   cl_arg_types[0] = &ffi_type_uint;
  32   cl_arg_types[1] = &ffi_type_uint;
  33   cl_arg_types[2] = NULL;
  34
  35   /* Initialize the cif */
  36   CHECK(ffi_prep_cif_var(&cif, FFI_DEFAULT_ABI, 1, 2,
  37                          &ffi_type_uint, cl_arg_types) == FFI_OK);
  38
  39   CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_T_fn, NULL, code)  == FFI_OK);
  40   res = ((((cls_ret_T)code)(67, 4)));
  41   /* { dg-output "67: 67 4" } */
  42   printf("res: %d\n", res);
  43   /* { dg-output "\nres: 67" } */
  44   exit(0);
  45 }