Module aligned_buf 

Stack-resident, fixed-capacity scratch buffer.

AlignedBuf is the zero-heap complement to super::aligned_vec::AlignedVec: it stores up to N elements inline in the struct itself, making it a zero-cost abstraction for small hot-path buffers whose maximum size is known at compile time.

Design

The backing store is [MaybeUninit<T>; N]. Only the first len slots are initialized; unwritten slots hold unspecified bytes. ScratchElement’s Copy super-bound means there are no destructors to run, so clear is a single field write and pop / drop never leak resources.

Zero heap

No allocator call is ever made by AlignedBuf’s own methods. When monomorphized the optimizer can keep small instances entirely in registers or a stack frame.

Copy

AlignedBuf<T, N> is Copy (every ScratchElement is). The copy includes the len field, so the semantics are identical to copying [T; len].

Structs

AlignedBuf

A stack-resident, fixed-capacity buffer holding up to N elements of T.