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python3.2  3.2.2
Typedefs | Functions
cls_double.c File Reference
#include "ffitest.h"

Go to the source code of this file.


typedef double(* cls_ret_double )(double)


static void cls_ret_double_fn (ffi_cif *cif __UNUSED__, void *resp, void **args, void *userdata __UNUSED__)
int main (void)

Typedef Documentation

typedef double(* cls_ret_double)(double)

Definition at line 18 of file cls_double.c.

Function Documentation

static void cls_ret_double_fn ( ffi_cif *cif  __UNUSED__,
void resp,
void **  args,
void *userdata  __UNUSED__ 
) [static]

Definition at line 10 of file cls_double.c.

   *(double *)resp = *(double *)args[0];

   printf("%f: %f\n",*(double *)args[0],
         *(double *)resp);

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int main ( void  )

Definition at line 20 of file cls_double.c.

  ffi_cif cif;
  void *code;
  ffi_closure *pcl = ffi_closure_alloc(sizeof(ffi_closure), &code);
  ffi_type * cl_arg_types[2];
  double res;

  cl_arg_types[0] = &ffi_type_double;
  cl_arg_types[1] = NULL;

  /* Initialize the cif */
  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
                   &ffi_type_double, cl_arg_types) == FFI_OK);

  CHECK(ffi_prep_closure_loc(pcl, &cif, cls_ret_double_fn, NULL, code)  == FFI_OK);

  res = (*((cls_ret_double)code))(21474.789);
  /* { dg-output "21474.789000: 21474.789000" } */
  printf("res: %.6f\n", res);
  /* { dg-output "\nres: 21474.789000" } */


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