// 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
