alloc::heap::EMPTY - Rust
Description: API documentation for the Rust `EMPTY` constant in crate `alloc`.
Keywords: rust, rustlang, rust-lang, EMPTY

# Constant alloc::heap::EMPTY [−] [src]

    pub const EMPTY: *mut () = 1 as *mut ()

Deprecated since 1.19

: Use Unique/Shared::empty() instead

🔬 This is a nightly-only experimental API. (`heap_api` #27700)

An arbitrary non-null address to represent zero-size allocations.

This preserves the non-null invariant for types like `Box<T>`. The address may overlap with non-zero-size memory allocations.

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