129 lines
4.0 KiB
HTML
129 lines
4.0 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>The Go Programming Language - Errata</title>
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<link rel="stylesheet" type="text/css" href="style.css" />
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<style>
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body {
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width: 38em;
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margin: auto;
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}
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pre {
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padding-left: 1em;
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}
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</style>
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</head>
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<body>
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<h1>Errata</h1>
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<p>
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<b>p.9, ¶2</b>: for "can compared", read "can be compared".
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(Thanks to Antonio Macías Ojeda, 2015-10-22.
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Corrected in the second printing.)
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</p>
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<p>
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<b>p.13</b>: As printed, the <code>gopl.io/ch1/lissajous</code> program
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is deterministic, not random. We've added the statement below to
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the downloadable program so that it prints a pseudo-random image
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each time it is run. (Thanks to Randall McPherson, 2015-10-19.)
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</p>
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<pre>rand.Seed(time.Now().UTC().UnixNano())</pre>
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<p>
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<b>p.15, ¶2</b>: For "inner loop", read "outer loop".
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(Thanks to Ralph Corderoy, 2015-11-28.)
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</p>
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<p>
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<b>p.19, ¶2</b>: For "Go's libraries makes", read "Go's library makes".
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(Thanks to Victor Farazdagi, 2015-11-30.)
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</p>
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<p>
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<b>p.40, ¶1</b>: The paragraph should end with a period, not a comma.
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(Thanks to Victor Farazdagi, 2015-11-30.)
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</p>
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<p>
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<b>p.43, ¶3</b>: Import declarations are explained in §10.4, not §10.3.
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(Thanks to Peter Jurgensen, 2015-11-21.)
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</p>
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<p>
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<b>p.52, ¶2</b>: for "an synonym", read "a synonym", twice.
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(Corrected in the second printing.)
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</p>
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<p>
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<b>p.68</b>: the table of UTF-8 encodings is missing a bit from each first byte.
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The corrected table is shown below.
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(Thanks to Akshay Kumar, 2015-11-02.
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Corrected in the Second printing.)
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</p>
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<pre>
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0xxxxxxx runes 0−127 (ASCII)
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110xxxxx 10xxxxxx 128−2047 (values <128 unused)
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1110xxxx 10xxxxxx 10xxxxxx 2048−65535 (values <2048 unused)
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11110xxx 10xxxxxx 10xxxxxx 10xxxxxx 65536−0x10ffff (other values unused)</pre>
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<p>
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<b>p.74</b>: the comment in <code>gopl.io/ch3/printints</code> should say
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<code>fmt.Sprint</code>, not <code>fmt.Sprintf</code>.
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(Corrected in the second printing.)
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</p>
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<p>
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<b>p.76</b>: the comment <code>// "time.Duration 5ms0s</code> should have
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a closing double-quotation mark.
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(Corrected in the second printing.)
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</p>
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<p>
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<b>p.79, ¶4</b>: "When an untyped constant is
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assigned to a variable, as in the first statement below, or
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appears on the right-hand side of a variable declaration with an
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explicit type, as in the other three statements, ..." has it backwards:
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the <i>first</i>
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statement is a declaration; the other three are assignments.
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(Thanks to Yoshiki Shibata, 2015-11-09.)
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</p>
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<p>
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<b>p.132, code display following ¶3</b>: the final comment
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should read:<br/>
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<code>// compile error: can't assign func(int, int) int to func(int) int</code><br/>
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(Thanks to Toni Suter, 2015-11-21.)
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</p>
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<p>
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<b>p.166, ¶2</b>: for "way", read "a way".
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</p>
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<p>
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<b>p.200, <code>TestEval</code> function</b>: the format string in the final call to
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<code>t.Errorf</code> should format <code>test.env</code> with <code>%v</code>,
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not <code>%s</code>.
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(Thanks to Mitsuteru Sawa, 2015-12-07.)
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</p>
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<p>
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<b>p.362</b>: the <code>gopl.io/ch13/bzip</code> program
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does not comply with the
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<a href='https://github.com/golang/proposal/blob/master/design/12416-cgo-pointers.md'>proposed rules for passing pointers between Go and C code</a>
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because the C function <code>bz2compress</code> temporarily stores a Go
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pointer (<code>in</code>) into the Go heap
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(the <code>bz_stream</code> variable).
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The <code>bz_stream</code> variable should be allocated, and
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explicitly freed after the call to
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<code>BZ2_bzCompressEnd</code>, by C functions.
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(Thanks to Joe Tsai, 2015-11-18.)
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</p>
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</body>
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</html>
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