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

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

Unstable (`heap_api` #27700)

: the precise API and guarantees it provides may be tweaked slightly, especially to possibly take into account the types being stored to make room for a future tracing garbage collector

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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