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doc/go_spec: more examples for unspecified cases of the evaluation order

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R=golang-dev, bradfitz, gri, iant, rsc
CC=golang-dev
https://golang.org/cl/7235044
This commit is contained in:
Shenghou Ma 2013-06-11 02:52:07 +08:00
parent b637135003
commit bdac989ef7
1 changed files with 5 additions and 3 deletions
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8
doc/go_spec.html
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@ -1,6 +1,6 @@
<!--{
"Title": "The Go Programming Language Specification",
"Subtitle": "Version of May 31, 2013",
"Subtitle": "Version of June 11, 2013",
"Path": "/ref/spec"
}-->
@ -3929,8 +3929,10 @@ of <code>y</code> is not specified.
<pre>
a := 1
f := func() int { a = 2; return 3 }
x := []int{a, f()} // x may be [1, 3] or [2, 3]: evaluation order between a and f() is not specified
f := func() int { a++; return a }
x := []int{a, f()} // x may be [1, 2] or [2, 2]: evaluation order between a and f() is not specified
m := map[int]int{a: 1, a: 2} // m may be {2: 1} or {2: 2}: evaluation order between the two map assignments is not specified
m2 := map[int]int{a: f()} // m2 may be {2: 3} or {3: 3}: evaluation order between the key and the value is not specified
</pre>
<p>