Tracking Issue for bufreader_peek · Issue #128405 · rust-lang/rust (original) (raw)

Feature gate: #![feature(bufreader_peek)]

This is a tracking issue for the BufReader::peek method.

Public API

// std::io

impl BufReader { fn peek(&mut self, n: usize) -> io::Result<&[u8]> }

Steps / History

• ACP Accepted: ACP: BufReader::peek libs-team#417
• Implementation: implement BufReader::peek #128406
• Final comment period (FCP)1
• Stabilization PR

Unresolved Questions

• what should happen if n > capacity? options are: short slice, error, or panic.
• should the buffer be completely filled, or should it only read the number of bytes requested?

1. https://std-dev-guide.rust-lang.org/feature-lifecycle/stabilization.html ↩