a geicko-2 based round robin ranking system designed to test c++ battleship submissions
battleship.dunkirk.sh
dunkirk.sh
1// Copyright 2022 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// Package buffer provides a pool-allocated byte buffer.
6package buffer
7
8import (
9 "sync"
10)
11
12// Buffer adapted from go/src/fmt/print.go
13type Buffer []byte
14
15// Having an initial size gives a dramatic speedup.
16var bufPool = sync.Pool{
17 New: func() any {
18 b := make([]byte, 0, 1024)
19 return (*Buffer)(&b)
20 },
21}
22
23func New() *Buffer {
24 return bufPool.Get().(*Buffer)
25}
26
27func (b *Buffer) Free() {
28 // To reduce peak allocation, return only smaller buffers to the pool.
29 const maxBufferSize = 16 << 10
30 if cap(*b) <= maxBufferSize {
31 *b = (*b)[:0]
32 bufPool.Put(b)
33 }
34}
35
36func (b *Buffer) Reset() {
37 *b = (*b)[:0]
38}
39
40func (b *Buffer) Write(p []byte) (int, error) {
41 *b = append(*b, p...)
42 return len(p), nil
43}
44
45func (b *Buffer) WriteString(s string) {
46 *b = append(*b, s...)
47}
48
49func (b *Buffer) WriteByte(c byte) {
50 *b = append(*b, c)
51}
52
53func (b *Buffer) WritePosInt(i int) {
54 b.WritePosIntWidth(i, 0)
55}
56
57// WritePosIntWidth writes non-negative integer i to the buffer, padded on the left
58// by zeroes to the given width. Use a width of 0 to omit padding.
59func (b *Buffer) WritePosIntWidth(i, width int) {
60 // Cheap integer to fixed-width decimal ASCII.
61 // Copied from log/log.go.
62
63 if i < 0 {
64 panic("negative int")
65 }
66
67 // Assemble decimal in reverse order.
68 var bb [20]byte
69 bp := len(bb) - 1
70 for i >= 10 || width > 1 {
71 width--
72 q := i / 10
73 bb[bp] = byte('0' + i - q*10)
74 bp--
75 i = q
76 }
77 // i < 10
78 bb[bp] = byte('0' + i)
79 b.Write(bb[bp:])
80}
81
82func (b *Buffer) String() string {
83 return string(*b)
84}