#[lang = "panic"]
#[track_caller]
-pub fn panic(_msg: &str) -> ! {
+pub fn panic(_msg: &'static str) -> ! {
unsafe {
libc::puts("Panicking\n\0" as *const str as *const i8);
intrinsics::abort();
fn deref(&self) -> &Self::Target;
}
+#[repr(transparent)]
+#[rustc_layout_scalar_valid_range_start(1)]
+#[rustc_nonnull_optimization_guaranteed]
+pub struct NonNull<T: ?Sized>(pub *const T);
+
+impl<T: ?Sized, U: ?Sized> CoerceUnsized<NonNull<U>> for NonNull<T> where T: Unsize<U> {}
+impl<T: ?Sized, U: ?Sized> DispatchFromDyn<NonNull<U>> for NonNull<T> where T: Unsize<U> {}
+
pub struct Unique<T: ?Sized> {
- pub pointer: *const T,
+ pub pointer: NonNull<T>,
pub _marker: PhantomData<T>,
}
impl<T: ?Sized, U: ?Sized> CoerceUnsized<Unique<U>> for Unique<T> where T: Unsize<U> {}
-
impl<T: ?Sized, U: ?Sized> DispatchFromDyn<Unique<U>> for Unique<T> where T: Unsize<U> {}
#[lang = "owned_box"]
}
}
-impl<T> Deref for Box<T> {
+impl<T: ?Sized> Deref for Box<T> {
type Target = T;
fn deref(&self) -> &Self::Target {
}
#[lang = "box_free"]
-unsafe fn box_free<T: ?Sized>(ptr: Unique<T>, alloc: ()) {
- libc::free(ptr.pointer as *mut u8);
+unsafe fn box_free<T: ?Sized>(ptr: Unique<T>, _alloc: ()) {
+ libc::free(ptr.pointer.0 as *mut u8);
}
#[lang = "drop"]
pub fn copy<T>(src: *const T, dst: *mut T, count: usize);
pub fn transmute<T, U>(e: T) -> U;
pub fn ctlz_nonzero<T>(x: T) -> T;
- pub fn needs_drop<T>() -> bool;
+ pub fn needs_drop<T: ?::Sized>() -> bool;
pub fn bitreverse<T>(x: T) -> T;
pub fn bswap<T>(x: T) -> T;
pub fn write_bytes<T>(dst: *mut T, val: u8, count: usize);
}
pub mod libc {
+ // With the new Universal CRT, msvc has switched to all the printf functions being inline wrapper
+ // functions. legacy_stdio_definitions.lib which provides the printf wrapper functions as normal
+ // symbols to link against.
+ #[cfg_attr(unix, link(name = "c"))]
+ #[cfg_attr(target_env="msvc", link(name="legacy_stdio_definitions"))]
+ extern "C" {
+ pub fn printf(format: *const i8, ...) -> i32;
+ }
+
#[cfg_attr(unix, link(name = "c"))]
#[cfg_attr(target_env = "msvc", link(name = "msvcrt"))]
extern "C" {
pub fn puts(s: *const i8) -> i32;
- pub fn printf(format: *const i8, ...) -> i32;
pub fn malloc(size: usize) -> *mut u8;
pub fn free(ptr: *mut u8);
pub fn memcpy(dst: *mut u8, src: *const u8, size: usize);