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Add a io::Writer wrapper that supports pushback #4031
Description
C's stdio has a function ungetc that lets you push back a single char on a stream. While we could expose support for the c functions, this wouldn't help with our str/bytes writers. Instead, how about we make a trait/impl io::Writer wrapper that supports lookahead and pushback for any io::Writers?
Activity
[libs] Remove unread_byte method from core::io::Reader
bstrie commentedon May 28, 2013
Nominating for Maturity 5, Production Ready
graydon commentedon Jul 18, 2013
sub-bug of #4248, and a feature
graydon commentedon Jul 18, 2013
accepted for feature-complete milestone
pnkfelix commentedon Jan 22, 2014
assigning P-low.
sfackler commentedon Jan 22, 2014
Shouldn't this be an
io::Readerwrapper?pongad commentedon Mar 3, 2014
Is something like this what everyone has in mind? https://gist.github.com/pongad/9316641
I can open a PR if everyone likes it ok.
steveklabnik commentedon Feb 15, 2015
I'm pulling a massive triage effort to get us ready for 1.0. As part of this, I'm moving stuff that's wishlist-like to the RFCs repo, as that's where major new things should get discussed/prioritized.
This issue has been moved to the RFCs repo: rust-lang/rfcs#856
Merge pull request rust-lang#4031 from devnexen/solarish_stat