Ruby  2.4.2p198(2017-09-14revision59899)
negint.c
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1 /* Area: ffi_call
2  Purpose: Check that negative integers are passed correctly.
3  Limitations: none.
4  PR: none.
5  Originator: From the original ffitest.c */
6 
7 /* { dg-do run } */
8 
9 #include "ffitest.h"
10 
11 static int checking(int a, short b, signed char c)
12 {
13 
14  return (a < 0 && b < 0 && c < 0);
15 }
16 
17 int main (void)
18 {
19  ffi_cif cif;
20  ffi_type *args[MAX_ARGS];
21  void *values[MAX_ARGS];
22  ffi_arg rint;
23 
24  signed int si;
25  signed short ss;
26  signed char sc;
27 
28  args[0] = &ffi_type_sint;
29  values[0] = &si;
30  args[1] = &ffi_type_sshort;
31  values[1] = &ss;
32  args[2] = &ffi_type_schar;
33  values[2] = &sc;
34 
35  /* Initialize the cif */
37  &ffi_type_sint, args) == FFI_OK);
38 
39  si = -6;
40  ss = -12;
41  sc = -1;
42 
43  checking (si, ss, sc);
44 
45  ffi_call(&cif, FFI_FN(checking), &rint, values);
46 
47  printf ("%d vs %d\n", (int)rint, checking (si, ss, sc));
48 
49  CHECK(rint != 0);
50 
51  exit (0);
52 }
#define ffi_type_schar
Definition: fiddle.h:56
unsigned long ffi_arg
Definition: ffitarget.h:30
int main(void)
Definition: negint.c:17
void ffi_call(ffi_cif *cif, void(*fn)(void), void *rvalue, void **avalue)
Definition: ffi.c:813
#define MAX_ARGS
Definition: function.c:15
static int checking(int a, short b, signed char c)
Definition: negint.c:11
#define CHECK(sub)
Definition: compile.c:408
ffi_status ffi_prep_cif(ffi_cif *cif, ffi_abi abi, unsigned int nargs, ffi_type *rtype, ffi_type **atypes)
Definition: prep_cif.c:226