1 //------------------------------------------------------------------------------
3 //------------------------------------------------------------------------------
5 const unsafe fn ret_i32_no_unsafe() -> i32 { 42 }
6 const unsafe fn ret_null_ptr_no_unsafe<T>() -> *const T { std::ptr::null() }
7 const unsafe fn ret_null_mut_ptr_no_unsafe<T>() -> *mut T { std::ptr::null_mut() }
8 const fn no_unsafe() { unsafe {} }
10 const fn call_unsafe_const_fn() -> i32 {
11 unsafe { ret_i32_no_unsafe() }
13 const fn call_unsafe_generic_const_fn() -> *const String {
14 unsafe { ret_null_ptr_no_unsafe::<String>() }
16 const fn call_unsafe_generic_cell_const_fn()
17 -> *const Vec<std::cell::Cell<u32>>
19 unsafe { ret_null_mut_ptr_no_unsafe::<Vec<std::cell::Cell<u32>>>() }
22 const unsafe fn call_unsafe_const_unsafe_fn() -> i32 {
23 unsafe { ret_i32_no_unsafe() }
25 const unsafe fn call_unsafe_generic_const_unsafe_fn() -> *const String {
26 unsafe { ret_null_ptr_no_unsafe::<String>() }
28 const unsafe fn call_unsafe_generic_cell_const_unsafe_fn()
29 -> *const Vec<std::cell::Cell<u32>>
31 unsafe { ret_null_mut_ptr_no_unsafe::<Vec<std::cell::Cell<u32>>>() }
34 const unsafe fn call_unsafe_const_unsafe_fn_immediate() -> i32 {
37 const unsafe fn call_unsafe_generic_const_unsafe_fn_immediate() -> *const String {
38 ret_null_ptr_no_unsafe::<String>()
40 const unsafe fn call_unsafe_generic_cell_const_unsafe_fn_immediate()
41 -> *const Vec<std::cell::Cell<u32>>
43 ret_null_mut_ptr_no_unsafe::<Vec<std::cell::Cell<u32>>>()
46 //------------------------------------------------------------------------------
48 //------------------------------------------------------------------------------
50 const fn bad_const_fn_deref_raw(x: *mut usize) -> &'static usize { unsafe { &*x } } //~ is unsafe
51 //~^ dereferencing raw pointers in constant functions
53 const unsafe fn bad_const_unsafe_deref_raw(x: *mut usize) -> usize { *x }
54 //~^ dereferencing raw pointers in constant functions
56 const unsafe fn bad_const_unsafe_deref_raw_ref(x: *mut usize) -> &'static usize { &*x }
57 //~^ dereferencing raw pointers in constant functions
61 const unsafe fn no_union() {
62 union Foo { x: (), y: () }
64 //~^ unions in const fn