// Sample benchmarks to test which function is better for converting // an integer into a string. First using the fmt.Sprintf function, // then the strconv.FormatInt function and then strconv.Itoa. package listing05_test import ( "fmt" "strconv" "testing" ) // BenchmarkSprintf provides performance numbers for the // fmt.Sprintf function. func BenchmarkSprintf(b *testing.B) { number := 10 b.ResetTimer() for i := 0; i < b.N; i++ { fmt.Sprintf("%d", number) } } // BenchmarkFormat provides performance numbers for the // strconv.FormatInt function. func BenchmarkFormat(b *testing.B) { number := int64(10) b.ResetTimer() for i := 0; i < b.N; i++ { strconv.FormatInt(number, 10) } } // BenchmarkItoa provides performance numbers for the // strconv.Itoa function. func BenchmarkItoa(b *testing.B) { number := 10 b.ResetTimer() for i := 0; i < b.N; i++ { strconv.Itoa(number) } } $w

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