go ftoaryu_test 源码
golang ftoaryu_test 代码
文件路径：/src/strconv/ftoaryu_test.go
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package strconv_test
import (
"math"
. "strconv"
"testing"
)
func TestMulByLog2Log10(t *testing.T) {
for x := -1600; x <= +1600; x++ {
iMath := MulByLog2Log10(x)
fMath := int(math.Floor(float64(x) * math.Ln2 / math.Ln10))
if iMath != fMath {
t.Errorf("mulByLog2Log10(%d) failed: %d vs %d\n", x, iMath, fMath)
}
}
}
func TestMulByLog10Log2(t *testing.T) {
for x := -500; x <= +500; x++ {
iMath := MulByLog10Log2(x)
fMath := int(math.Floor(float64(x) * math.Ln10 / math.Ln2))
if iMath != fMath {
t.Errorf("mulByLog10Log2(%d) failed: %d vs %d\n", x, iMath, fMath)
}
}
}
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