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doc/go1.11: add note about vet checks for printf wrappers

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Fixes golang/go#26372

Change-Id: I30716ba56f829c6e36ccd50471e118084bad7360
Reviewed-on: https://go-review.googlesource.com/128902
Reviewed-by: Russ Cox <rsc@golang.org>
This commit is contained in:
Andrew Bonventre 2018-08-09 19:43:54 -04:00
parent a0127c1921
commit 89e13c80ef
1 changed files with 16 additions and 0 deletions
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doc/go1.11.html
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@ -299,6 +299,22 @@ func f(v interface{}) {
a warning to be printed, and <code>vet</code> to exit with status 1.
</p>
<p><!-- CL 108559 -->
Additionally, <a href="/cmd/vet"><code>go</code>&nbsp;<code>vet</code></a>
has become more robust when format-checking <code>printf</code> wrappers.
Vet now detects the mistake in this example:
</p>
<pre>
func wrapper(s string, args ...interface{}) {
fmt.Printf(s, args...)
}
func main() {
wrapper("%s", 42)
}
</pre>
<h3 id="trace">Trace</h3>
<p><!-- CL 63274 -->