1  /* Area:	ffi_call
       2     Purpose:	Check return value double.
       3     Limitations:	none.
       4     PR:		none.
       5     Originator:	<andreast@gcc.gnu.org> 20050212  */
       6  
       7  /* { dg-do run } */
       8  #include "ffitest.h"
       9  
      10  static double return_dbl(double dbl1, double dbl2, unsigned int in3, double dbl4)
      11  {
      12    return dbl1 + dbl2 + in3 + dbl4;
      13  }
      14  int main (void)
      15  {
      16    ffi_cif cif;
      17    ffi_type *args[MAX_ARGS];
      18    void *values[MAX_ARGS];
      19    double dbl1, dbl2, dbl4, rdbl;
      20    unsigned int in3;
      21    args[0] = &ffi_type_double;
      22    args[1] = &ffi_type_double;
      23    args[2] = &ffi_type_uint;
      24    args[3] = &ffi_type_double;
      25    values[0] = &dbl1;
      26    values[1] = &dbl2;
      27    values[2] = &in3;
      28    values[3] = &dbl4;
      29  
      30    /* Initialize the cif */
      31    CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 4,
      32  		     &ffi_type_double, args) == FFI_OK);
      33    dbl1 = 127.0;
      34    dbl2 = 128.0;
      35    in3 = 255;
      36    dbl4 = 512.7;
      37  
      38    ffi_call(&cif, FFI_FN(return_dbl), &rdbl, values);
      39    printf ("%f vs %f\n", rdbl, return_dbl(dbl1, dbl2, in3, dbl4));
      40    CHECK(rdbl ==  dbl1 + dbl2 + in3 + dbl4);
      41    exit(0);
      42  }