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update errata

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chai2010 2016-01-13 10:39:16 +08:00
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appendix/appendix-a-errata.md
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@ -6,15 +6,17 @@
`rand.Seed(time.Now().UTC().UnixNano())` `rand.Seed(time.Now().UTC().UnixNano())`
**p.15, ¶2:** For "inner loop", read "outer loop". (Thanks to Ralph Corderoy, 2015-11-28.) **p.15, ¶2:** For "inner loop", read "outer loop". (Thanks to Ralph Corderoy, 2015-11-28. Corrected in the third printing.)
**p.19, ¶2:** For "Go's libraries makes", read "Go's library makes". (Thanks to Victor Farazdagi, 2015-11-30.) **p.19, ¶2:** For "Go's libraries makes", read "Go's library makes". (Thanks to Victor Farazdagi, 2015-11-30. Corrected in the third printing.)
**p.40, ¶4:** For "value of the underlying type", read "value of an unnamed type with the same underlying type". (Thanks to Carlos Romero Brox, 2015-12-19.) **p.40, ¶4:** For "value of the underlying type", read "value of an unnamed type with the same underlying type". (Thanks to Carlos Romero Brox, 2015-12-19.)
**p.40, ¶1:** The paragraph should end with a period, not a comma. (Thanks to Victor Farazdagi, 2015-11-30.) **p.40, ¶1:** The paragraph should end with a period, not a comma. (Thanks to Victor Farazdagi, 2015-11-30. Corrected in the third printing.)
**p.43, ¶3:** Import declarations are explained in §10.4, not §10.3. (Thanks to Peter Jurgensen, 2015-11-21.) **p.43, ¶3:** Import declarations are explained in §10.4, not §10.3. (Thanks to Peter Jurgensen, 2015-11-21. Corrected in the third printing.)
**p.48:** `f.ReadByte()` serves as an example of a reference to f, but `*os.File` has no such method. For "ReadByte", read "Stat", four times. (Thanks to Peter Olsen, 2016-01-06. Corrected in the third printing.)
**p.52, ¶2:** for "an synonym", read "a synonym", twice. (Corrected in the second printing.) **p.52, ¶2:** for "an synonym", read "a synonym", twice. (Corrected in the second printing.)
@ -38,19 +40,19 @@
**p.76:** the comment `// "time.Duration 5ms0s` should have a closing double-quotation mark. (Corrected in the second printing.) **p.76:** the comment `// "time.Duration 5ms0s` should have a closing double-quotation mark. (Corrected in the second printing.)
**p.79, ¶4:** "When an untyped constant is assigned to a variable, as in the first statement below, or **p.79, ¶4:** "When an untyped constant is assigned to a variable, as in the first statement below, or
appears on the right-hand side of a variable declaration with an explicit type, as in the other three statements, ..." has it backwards: the <i>first</i> statement is a declaration; the other three are assignments. (Thanks to Yoshiki Shibata, 2015-11-09.) appears on the right-hand side of a variable declaration with an explicit type, as in the other three statements, ..." has it backwards: the <i>first</i> statement is a declaration; the other three are assignments. (Thanks to Yoshiki Shibata, 2015-11-09. Corrected in the third printing.)
**p.132, code display following ¶3:** the final comment should read: `// compile error: can't assign func(int, int) int to func(int) int` (Thanks to Toni Suter, 2015-11-21.) **p.132, code display following ¶3:** the final comment should read: `// compile error: can't assign func(int, int) int to func(int) int` (Thanks to Toni Suter, 2015-11-21. Corrected in the third printing.)
**p.166, ¶2:** for "way", read "a way". **p.166, ¶2:** for "way", read "a way". (Corrected in the third printing.)
**p.200, TestEval function:** the format string in the final call to t.Errorf should format test.env with %v, not %s. (Thanks to Mitsuteru Sawa, 2015-12-07. Corrected in the third printing.)
**p.222. Exercise 8.1:** The port numbers for `London` and `Tokyo` should be swapped in the final command to match the earlier commands. (Thanks to Kiyoshi Kamishima, 2016-01-08.) **p.222. Exercise 8.1:** The port numbers for `London` and `Tokyo` should be swapped in the final command to match the earlier commands. (Thanks to Kiyoshi Kamishima, 2016-01-08.)
**p.288, code display following ¶4:** In the import declaration, for `"database/mysql"`, read `"database/sql"`. (Thanks to Jose Colon Rodriguez, 2016-01-09.) **p.288, code display following ¶4:** In the import declaration, for `"database/mysql"`, read `"database/sql"`. (Thanks to Jose Colon Rodriguez, 2016-01-09.)
**p.200, TestEval function:** the format string in the final call to t.Errorf should format test.env with %v, not %s. (Thanks to Mitsuteru Sawa, 2015-12-07.)
**p.347, Exercise 12.8:** for "like json.Marshal", read "like json.Unmarshal". (Thanks to @chai2010, 2016-01-01.) **p.347, Exercise 12.8:** for "like json.Marshal", read "like json.Unmarshal". (Thanks to @chai2010, 2016-01-01.)
**p.362:** the `gopl.io/ch13/bzip` program does not comply with the [proposed rules for passing pointers between Go and C code](https://github.com/golang/proposal/blob/master/design/12416-cgo-pointers.md) because the C function `bz2compress` temporarily stores a Go pointer (in) into the Go heap (the `bz_stream` variable). The `bz_stream` variable should be allocated, and explicitly freed after the call to `BZ2_bzCompressEnd`, by C functions. (Thanks to Joe Tsai, 2015-11-18.) **p.362:** the `gopl.io/ch13/bzip` program does not comply with the [proposed rules for passing pointers between Go and C code](https://github.com/golang/proposal/blob/master/design/12416-cgo-pointers.md) because the C function `bz2compress` temporarily stores a Go pointer (in) into the Go heap (the `bz_stream` variable). The `bz_stream` variable should be allocated, and explicitly freed after the call to `BZ2_bzCompressEnd`, by C functions. (Thanks to Joe Tsai, 2015-11-18. Corrected in the third printing.)