Function nom::lib::std::alloc::alloc

pub unsafe fn alloc(layout: Layout) -> *mut u8

Allocate memory with the global allocator.

This function forwards calls to the [GlobalAlloc::alloc] 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 method of the [Global] type when it and the [AllocRef] trait become stable.

Safety

See [GlobalAlloc::alloc].

Examples

use std::alloc::{alloc, dealloc, Layout};

unsafe {
    let layout = Layout::new::<u16>();
    let ptr = alloc(layout);

    *(ptr as *mut u16) = 42;
    assert_eq!(*(ptr as *mut u16), 42);

    dealloc(ptr, layout);
}