The PR replaces Zig’s generic std.io readers and writers with new non-generic std.io.Reader and std.io.Writer interfaces that keep the buffer in the interface rather than in implementations.
New Reader and Writer still perform efficiently by operating directly on the buffer and only invoking vtable calls when the buffer is full.
An upgrade guide maps deprecated APIs (like std.fs.File.reader) to new names and provides an adaptToNewApi helper for migrating old streams.
New formatted printing features include shorthand tags ({t}), base64 output ({b64}), and stricter format string rules to prevent errors.
Streams now support efficient discard (skipping data) and splatting (zero-copy repeated writes), plus direct file sending when supported by the OS.
std.fs.File.Reader and std.fs.File.Writer memoize file metadata, seek position, and error states for more efficient file I/O operations.
Get notified when new stories are published for "🇺🇸 Hacker News English"