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spec: clarify that result parameters are always zeroed before the function executes.

R=golang-dev
CC=golang-dev
https://golang.org/cl/1641043
This commit is contained in:
Rob Pike 2010-06-11 21:30:03 -07:00
parent 089da369a3
commit db8c2b1803

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@ -4190,8 +4190,7 @@ func complex_f2() (re float, im float) {
</li>
<li>The expression list may be empty if the functions's result
type specifies names for its result parameters (§<a href="#Function_Types">Function Types</a>).
The result parameters act as ordinary local variables that are
initialized to the zero values for their type (§<a href="#The_zero_value">The zero value</a>)
The result parameters act as ordinary local variables
and the function may assign values to them as necessary.
The "return" statement returns the values of these variables.
<pre>
@ -4204,6 +4203,10 @@ func complex_f3() (re float, im float) {
</li>
</ol>
<p>
Regardless of how they are declared, all the result values are initialized to the zero values for their type (§<a href="#The_zero_value">The zero value</a>) upon entry to the function.
</p>
<!---
<p>
<span class="alert">