Function drain [src]

Prototype

pub fn drain(w: *Writer, data: []const []const u8, splat: usize) Error!usize

Parameters

w: *Writerdata: []const []const u8splat: usize

Possible Errors

WriteFailed

See the Writer implementation for detailed diagnostics.

Source

  pub fn drain(w: *Writer, data: []const []const u8, splat: usize) Error!usize {
    const d: *Discarding = @alignCast(@fieldParentPtr("writer", w));
    const slice = data[0 .. data.len - 1];
    const pattern = data[slice.len];
    var written: usize = pattern.len * splat;
    for (slice) |bytes| written += bytes.len;
    d.count += w.end + written;
    w.end = 0;
    return written;
}  