Function fill [src]

Fills the buffer such that it contains at least n bytes, without advancing the seek position. Returns error.EndOfStream if and only if there are fewer than n bytes remaining. If the end of stream is not encountered, asserts buffer capacity is at least n.

Prototype

pub fn fill(r: *Reader, n: usize) Error!void

Parameters

r: *Readern: usize

Possible Errors

EndOfStream

ReadFailed

See the Reader implementation for detailed diagnostics.

Example

 test fill {
    var r: Reader = .fixed("abc");
    try r.fill(1);
    try r.fill(3);
}

Source

  pub fn fill(r: *Reader, n: usize) Error!void {
    if (r.seek + n <= r.end) {
        @branchHint(.likely);
        return;
    }
    return fillUnbuffered(r, n);
}  