63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
|
// RUN: %clang -w -fsanitize=nullability-arg,nullability-assign,nullability-return %s -O3 -o %t
|
||
|
|
// RUN: %run %t foo 2>&1 | count 0
|
||
|
|
// RUN: %run %t 2>&1 | FileCheck %s
|
||
|
|
|
||
|
|
// CHECK: nullability.c:[[@LINE+2]]:41: runtime error: null pointer returned from function declared to never return null
|
||
|
|
// CHECK-NEXT: nullability.c:[[@LINE+1]]:6: note: _Nonnull return type annotation specified here
|
||
|
|
int *_Nonnull nonnull_retval1(int *p) { return p; }
|
||
|
|
|
||
|
|
// CHECK: nullability.c:1001:22: runtime error: null pointer passed as argument 2, which is declared to never be null
|
||
|
|
// CHECK-NEXT: nullability.c:[[@LINE+1]]:56: note: _Nonnull type annotation specified here
|
||
|
|
int *_Nonnull nonnull_retval2(int *_Nonnull arg1, int *_Nonnull arg2,
|
||
|
|
int *_Nullable arg3, int *arg4, int arg5, ...) {
|
||
|
|
return arg1;
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK: nullability.c:1002:15: runtime error: null pointer passed as argument 1, which is declared to never be null
|
||
|
|
// CHECK-NEXT: nullability.c:[[@LINE+1]]:23: note: _Nonnull type annotation specified here
|
||
|
|
void nonnull_arg(int *_Nonnull p) {}
|
||
|
|
|
||
|
|
void nonnull_assign1(int *p) {
|
||
|
|
int *_Nonnull local;
|
||
|
|
// CHECK: nullability.c:[[@LINE+1]]:9: runtime error: _Nonnull binding to null pointer of type 'int * _Nonnull'
|
||
|
|
local = p;
|
||
|
|
}
|
||
|
|
|
||
|
|
void nonnull_assign2(int *p) {
|
||
|
|
int *_Nonnull arr[1];
|
||
|
|
// CHECK: nullability.c:[[@LINE+1]]:10: runtime error: _Nonnull binding to null pointer of type 'int * _Nonnull'
|
||
|
|
arr[0] = p;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct S1 {
|
||
|
|
int *_Nonnull mptr;
|
||
|
|
};
|
||
|
|
|
||
|
|
void nonnull_assign3(int *p) {
|
||
|
|
struct S1 s;
|
||
|
|
// CHECK: nullability.c:[[@LINE+1]]:10: runtime error: _Nonnull binding to null pointer of type 'int * _Nonnull'
|
||
|
|
s.mptr = p;
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK: nullability.c:[[@LINE+1]]:52: runtime error: _Nonnull binding to null pointer of type 'int * _Nonnull'
|
||
|
|
void nonnull_init1(int *p) { int *_Nonnull local = p; }
|
||
|
|
|
||
|
|
// CHECK: nullability.c:[[@LINE+2]]:53: runtime error: _Nonnull binding to null pointer of type 'int * _Nonnull'
|
||
|
|
// CHECK: nullability.c:[[@LINE+1]]:56: runtime error: _Nonnull binding to null pointer of type 'int * _Nonnull'
|
||
|
|
void nonnull_init2(int *p) { int *_Nonnull arr[] = {p, p}; }
|
||
|
|
|
||
|
|
int main(int argc, char **argv) {
|
||
|
|
int *p = (argc > 1) ? &argc : ((int *)0);
|
||
|
|
|
||
|
|
#line 1000
|
||
|
|
nonnull_retval1(p);
|
||
|
|
nonnull_retval2(p, p, p, p, 0, 0, 0, 0);
|
||
|
|
nonnull_arg(p);
|
||
|
|
nonnull_assign1(p);
|
||
|
|
nonnull_assign2(p);
|
||
|
|
nonnull_assign3(p);
|
||
|
|
nonnull_init1(p);
|
||
|
|
nonnull_init2(p);
|
||
|
|
return 0;
|
||
|
|
}
|