1 /* Area: closure_call 2 Purpose: Check return value double. 3 Limitations: none. 4 PR: none. 5 Originator: <andreast (at) gcc.gnu.org> 20030828 */ 6 7 /* { dg-do run } */ 8 #include "ffitest.h" 9 10 static void cls_ret_double_fn(ffi_cif* cif __UNUSED__, void* resp, void** args, 11 void* userdata __UNUSED__) 12 { 13 *(double *)resp = *(double *)args[0]; 14 15 printf("%f: %f\n",*(double *)args[0], 16 *(double *)resp); 17 } 18 typedef double (*cls_ret_double)(double); 19 20 int main (void) 21 { 22 ffi_cif cif; 23 void *code; 24 ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code); 25 ffi_type * cl_arg_types[2]; 26 double res; 27 28 cl_arg_types[0] = &ffi_type_double; 29 cl_arg_types[1] = NULL; 30 31 /* Initialize the cif */ 32 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, 33 &ffi_type_double, cl_arg_types) == FFI_OK); 34 35 CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_double_fn, NULL, code) == FFI_OK); 36 37 res = (*((cls_ret_double)code))(21474.789); 38 /* { dg-output "21474.789000: 21474.789000" } */ 39 printf("res: %.6f\n", res); 40 /* { dg-output "\nres: 21474.789000" } */ 41 42 exit(0); 43 } 44
