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 #ifndef USING_MMAP 24 static ffi_closure cl; 25 #endif 26 ffi_closure *pcl; 27 ffi_type * cl_arg_types[2]; 28 double res; 29 30 #ifdef USING_MMAP 31 pcl = allocate_mmap (sizeof(ffi_closure)); 32 #else 33 pcl = &cl; 34 #endif 35 36 cl_arg_types[0] = &ffi_type_double; 37 cl_arg_types[1] = NULL; 38 39 /* Initialize the cif */ 40 CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1, 41 &ffi_type_double, cl_arg_types) == FFI_OK); 42 43 CHECK(ffi_prep_closure(pcl, &cif, cls_ret_double_fn, NULL) == FFI_OK); 44 45 res = (*((cls_ret_double)pcl))(21474.789); 46 /* { dg-output "21474.789000: 21474.789000" } */ 47 printf("res: %.6f\n", res); 48 /* { dg-output "\nres: 21474.789000" } */ 49 50 exit(0); 51 } 52
