76 /// use std::alloc::{alloc, dealloc, handle_alloc_error, Layout};
79 ///     let layout = Layout::new::<u16>();
80 ///     let ptr = alloc(layout);
82 ///         handle_alloc_error(layout);
88 ///     dealloc(ptr, layout);
94 pub unsafe fn alloc(layout: Layout) -> *mut u8 {  in alloc()
100         __rust_alloc(layout.size(), layout.align())  in alloc()
118 pub unsafe fn dealloc(ptr: *mut u8, layout: Layout) {  in dealloc()  argument
119     unsafe { __rust_dealloc(ptr, layout.size(), layout.align()) }  in dealloc()
137 pub unsafe fn realloc(ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 {  in realloc()  argument
138     unsafe { __rust_realloc(ptr, layout.size(), layout.align(), new_size) }  in realloc()
157 /// use std::alloc::{alloc_zeroed, dealloc, Layout};
160 ///     let layout = Layout::new::<u16>();
161 ///     let ptr = alloc_zeroed(layout);
165 ///     dealloc(ptr, layout);
171 pub unsafe fn alloc_zeroed(layout: Layout) -> *mut u8 {  in alloc_zeroed()
172     unsafe { __rust_alloc_zeroed(layout.size(), layout.align()) }  in alloc_zeroed()
178     fn alloc_impl(&self, layout: Layout, zeroed: bool) -> Result<NonNull<[u8]>, AllocError> {  in alloc_impl()  argument
179         match layout.size() {  in alloc_impl()
180             0 => Ok(NonNull::slice_from_raw_parts(layout.dangling(), 0)),  in alloc_impl()
181             // SAFETY: `layout` is non-zero in size,  in alloc_impl()
183                 let raw_ptr = if zeroed { alloc_zeroed(layout) } else { alloc(layout) };  in alloc_impl()
195         old_layout: Layout,  in grow_impl()  argument
196         new_layout: Layout,  in grow_impl()  argument
242     fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError> {  in allocate()
243         self.alloc_impl(layout, false)  in allocate()
247     fn allocate_zeroed(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError> {  in allocate_zeroed()
248         self.alloc_impl(layout, true)  in allocate_zeroed()
252     unsafe fn deallocate(&self, ptr: NonNull<u8>, layout: Layout) {  in deallocate()  argument
253         if layout.size() != 0 {  in deallocate()
254             // SAFETY: `layout` is non-zero in size,  in deallocate()
256             unsafe { dealloc(ptr.as_ptr(), layout) }  in deallocate()
264         old_layout: Layout,  in grow()  argument
265         new_layout: Layout,  in grow()  argument
275         old_layout: Layout,  in grow_zeroed()  argument
276         new_layout: Layout,  in grow_zeroed()  argument
286         old_layout: Layout,  in shrink()  argument
287         new_layout: Layout,  in shrink()  argument
331     let layout = unsafe { Layout::from_size_align_unchecked(size, align) };  in exchange_malloc()  localVariable
332     match Global.allocate(layout) {  in exchange_malloc()
334         Err(_) => handle_alloc_error(layout),  in exchange_malloc()
364 pub const fn handle_alloc_error(layout: Layout) -> ! {  in handle_alloc_error()  argument
365     const fn ct_error(_: Layout) -> ! {  in handle_alloc_error()  argument
369     fn rt_error(layout: Layout) -> ! {  in handle_alloc_error()  argument
371             __rust_alloc_error_handler(layout.size(), layout.align());  in handle_alloc_error()
375     unsafe { core::intrinsics::const_eval_select((layout,), ct_error, rt_error) }  in handle_alloc_error()