Function alloc::alloc::alloc_zeroed 1.28.0[−][src]
pub unsafe fn alloc_zeroed(layout: Layout) -> *mut u8
Allocate zero-initialized memory with the global allocator.
This function forwards calls to the GlobalAlloc::alloc_zeroed method
of the allocator registered with the #[global_allocator] attribute
if there is one, or the std crate’s default.
This function is expected to be deprecated in favor of the alloc_zeroed method
of the Global type when it and the Allocator trait become stable.
Safety
See GlobalAlloc::alloc_zeroed.
Examples
use std::alloc::{alloc_zeroed, dealloc, Layout}; unsafe { let layout = Layout::new::<u16>(); let ptr = alloc_zeroed(layout); assert_eq!(*(ptr as *mut u16), 0); dealloc(ptr, layout); }Run