progs/go1.go" `/func.*Benchmark/` `/^}/`}}
-->func BenchmarkSprintf(b *testing.B) {
    <span class="comment">// Verify correctness before running benchmark.</span>
    b.StopTimer()
    got := fmt.Sprintf(&#34;%x&#34;, 23)
    const expect = &#34;17&#34;
    if expect != got {
        b.Fatalf(&#34;expected %q; got %q&#34;, expect, got)
    }
    b.StartTimer()
    for i := 0; i &lt; b.N; i++ {
        fmt.Sprintf(&#34;%x&#34;, 23)
    }
}</pre>

<p>
<em>Updating</em>:
Existing code is unaffected, although