Zig 0.17.0-dev (Split by item)

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stream

Reader.stream

pub fn stream(r: *Reader, w: *Writer, limit: Limit) StreamError!usize

File

lib/std/Io/Reader.zig:168

Code

pub fn stream(r: *Reader, w: *Writer, limit: Limit) StreamError!usize {
    const buffer = limit.slice(r.buffer[r.seek..r.end]);
    if (buffer.len > 0) {
        @branchHint(.likely);
        const n = try w.write(buffer);
        r.seek += n;
        return n;
    }
    const n = try r.vtable.stream(r, w, limit);
    assert(n <= @backingInt(limit));
    return n;
}