21pages
15 lines
456 B
Rust
15 lines
456 B
Rust
/// SAFETY: the returned Vec must not be resized or reserverd
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pub unsafe fn aligned_u8_vec(cap: usize, align: usize) -> Vec<u8> {
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use std::alloc::*;
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let layout =
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Layout::from_size_align(cap, align).expect("invalid aligned value, must be power of 2");
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unsafe {
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let ptr = alloc(layout);
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if ptr.is_null() {
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panic!("failed to allocate {} bytes", cap);
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}
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Vec::from_raw_parts(ptr, 0, cap)
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}
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}
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