Tracking Issue for `BufRead::has_data_left` · Issue #86423 · rust-lang/rust (original) (raw)

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Feature gate: #![feature(buf_read_has_data_left)]

This is a tracking issue for adding has_data_left to BufRead. Its purpose is to determine whether a reader has any data left over to read.

let file = File::open("foo.txt")?; let reader = BufReader::new(file); let is_not_empty = reader.has_data_left()?;

Still need to finalize the name of has_data_left and whether the API should check the positive case or the negative case.
Internals discussion (note that the post uses is_at_eof as the name of the new method).