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/js/src/ctypes/libffi/testsuite/libffi.call/return_uc.c

http://github.com/zpao/v8monkey
C | 38 lines | 24 code | 7 blank | 7 comment | 3 complexity | 3aeca5109ebb9e697863cd60fc609723 MD5 | raw file
 1/* Area:	ffi_call
 2   Purpose:	Check return value unsigned char.
 3   Limitations:	none.
 4   PR:		none.
 5   Originator:	From the original ffitest.c  */
 6
 7/* { dg-do run } */
 8#include "ffitest.h"
 9
10static unsigned char return_uc(unsigned char uc)
11{
12  return uc;
13}
14
15int main (void)
16{
17  ffi_cif cif;
18  ffi_type *args[MAX_ARGS];
19  void *values[MAX_ARGS];
20  ffi_arg rint;
21
22  unsigned char uc;
23
24  args[0] = &ffi_type_uchar;
25  values[0] = &uc;
26
27  /* Initialize the cif */
28  CHECK(ffi_prep_cif(&cif, FFI_DEFAULT_ABI, 1,
29		     &ffi_type_uchar, args) == FFI_OK);
30
31  for (uc = (unsigned char) '\x00';
32       uc < (unsigned char) '\xff'; uc++)
33    {
34      ffi_call(&cif, FFI_FN(return_uc), &rint, values);
35      CHECK(rint == (signed int) uc);
36    }
37  exit(0);
38}