blob: 5f01374be3669e24bf6b5e4d7be6e66099cfd00a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
// RUN: %clang_cc1 -fsyntax-only -verify -pedantic -Wsign-compare %s
void foo() {
*(0 ? (double *)0 : (void *)0) = 0;
// FIXME: GCC doesn't consider the the following two statements to be errors.
*(0 ? (double *)0 : (void *)(int *)0) = 0; // expected-error {{incomplete type 'void' is not assignable}}
*(0 ? (double *)0 : (void *)(double *)0) = 0; // expected-error {{incomplete type 'void' is not assignable}}
*(0 ? (double *)0 : (int *)(void *)0) = 0; // expected-error {{incomplete type 'void' is not assignable}} expected-warning {{pointer type mismatch ('double *' and 'int *')}}
*(0 ? (double *)0 : (double *)(void *)0) = 0;
*((void *) 0) = 0; // expected-error {{incomplete type 'void' is not assignable}}
double *dp;
int *ip;
void *vp;
dp = vp;
vp = dp;
ip = dp; // expected-warning {{incompatible pointer types assigning 'double *', expected 'int *'}}
dp = ip; // expected-warning {{incompatible pointer types assigning 'int *', expected 'double *'}}
dp = 0 ? (double *)0 : (void *)0;
vp = 0 ? (double *)0 : (void *)0;
ip = 0 ? (double *)0 : (void *)0; // expected-warning {{incompatible pointer types assigning 'double *', expected 'int *'}}
const int *cip;
vp = (0 ? vp : cip); // expected-warning {{discards qualifiers}}
vp = (0 ? cip : vp); // expected-warning {{discards qualifiers}}
int i = 2;
int (*pf)[2];
int (*pv)[i];
pf = (i ? pf : pv);
enum {xxx,yyy,zzz} e, *ee;
short x;
ee = ee ? &x : ee ? &i : &e; // expected-warning {{pointer type mismatch}}
typedef void *asdf;
*(0 ? (asdf) 0 : &x) = 10;
unsigned long test0 = 5;
test0 = test0 ? (long) test0 : test0; // expected-warning {{operands of ? are integers of different signs}}
test0 = test0 ? (int) test0 : test0; // expected-warning {{operands of ? are integers of different signs}}
test0 = test0 ? (short) test0 : test0; // expected-warning {{operands of ? are integers of different signs}}
test0 = test0 ? test0 : (long) test0; // expected-warning {{operands of ? are integers of different signs}}
test0 = test0 ? test0 : (int) test0; // expected-warning {{operands of ? are integers of different signs}}
test0 = test0 ? test0 : (short) test0; // expected-warning {{operands of ? are integers of different signs}}
test0 = test0 ? test0 : (long) 10;
test0 = test0 ? test0 : (int) 10;
test0 = test0 ? test0 : (short) 10;
test0 = test0 ? (long) 10 : test0;
test0 = test0 ? (int) 10 : test0;
test0 = test0 ? (short) 10 : test0;
enum Enum { EVal };
test0 = test0 ? EVal : test0;
test0 = test0 ? EVal : (int) test0; // okay: EVal is an int
test0 = test0 ? (unsigned) EVal : (int) test0; // expected-warning {{operands of ? are integers of different signs}}
}
int Postgresql() {
char x;
return ((((&x) != ((void *) 0)) ? (*(&x) = ((char) 1)) : (void) ((void *) 0)), (unsigned long) ((void *) 0)); // expected-warning {{C99 forbids conditional expressions with only one void side}}
}
#define nil ((void*) 0)
extern int f1(void);
int f0(int a) {
// GCC considers this a warning.
return a ? f1() : nil; // expected-warning {{pointer/integer type mismatch in conditional expression ('int' and 'void *')}} expected-warning {{incompatible pointer to integer conversion returning 'void *', expected 'int'}}
}
|