math/big: use more direct formatting in ExampleRoundingMode, cosmetic changes
Change-Id: I3d37391af2089881a5bd4d8f3e5d434b279c272e
Reviewed-on: https://go-review.googlesource.com/14490
Reviewed-by: Chris Manghane <cmang@golang.org>
diff --git a/src/math/big/floatexample_test.go b/src/math/big/floatexample_test.go
index d135243..fb799d5 100644
--- a/src/math/big/floatexample_test.go
+++ b/src/math/big/floatexample_test.go
@@ -113,9 +113,9 @@
func ExampleRoundingMode() {
operands := []float64{2.6, 2.5, 2.1, -2.1, -2.5, -2.6}
- fmt.Printf("x ")
+ fmt.Print(" x")
for mode := big.ToNearestEven; mode <= big.ToPositiveInf; mode++ {
- fmt.Printf(" %s", mode)
+ fmt.Printf(" %s", mode)
}
fmt.Println()
@@ -125,18 +125,17 @@
// sample operands above require 2 bits to represent mantissa
// set binary precision to 2 to round them to integer values
f := new(big.Float).SetPrec(2).SetMode(mode).SetFloat64(f64)
- format := fmt.Sprintf(" %%%dg", len(mode.String()))
- fmt.Printf(format, f)
+ fmt.Printf(" %*g", len(mode.String()), f)
}
fmt.Println()
}
// Output:
- // x ToNearestEven ToNearestAway ToZero AwayFromZero ToNegativeInf ToPositiveInf
- // 2.6 3 3 2 3 2 3
- // 2.5 2 3 2 3 2 3
- // 2.1 2 2 2 3 2 3
- // -2.1 -2 -2 -2 -3 -3 -2
- // -2.5 -2 -3 -2 -3 -3 -2
- // -2.6 -3 -3 -2 -3 -3 -2
+ // x ToNearestEven ToNearestAway ToZero AwayFromZero ToNegativeInf ToPositiveInf
+ // 2.6 3 3 2 3 2 3
+ // 2.5 2 3 2 3 2 3
+ // 2.1 2 2 2 3 2 3
+ // -2.1 -2 -2 -2 -3 -3 -2
+ // -2.5 -2 -3 -2 -3 -3 -2
+ // -2.6 -3 -3 -2 -3 -3 -2
}
