No value is equal to NaN

Docs > Datadog Security > Code Security > Static Code Analysis (SAST) > SAST ルール > No value is equal to NaN

このページは日本語には対応しておりません。随時翻訳に取り組んでいます。
翻訳に関してご質問やご意見ございましたら、お気軽にご連絡ください。

Metadata

ID: go-best-practices/do-not-compare-nan

Language: Go

Severity: Notice

Category: Best Practices

Description

You do not need to convert the string into a slice of bytes to use Write, you can just use the string directly.

Non-Compliant Code Examples

package main

import (
	"fmt"
	"math"
)

func main() {
	n := 5.0
	aNaN := math.NaN()
	// This case cannot be caught with current capabilities
	if n == aNaN {
		fmt.Println("hello")
	} else if n > math.NaN() {
		fmt.Println("hi")
	}

	fmt.Println("goodbye")
}

Compliant Code Examples

package main

import (
	"fmt"
	"math"
)

func main() {
	n := 5.0
	// Safe: using math.IsNaN to check for NaN
	if math.IsNaN(n) {
		fmt.Println("hello")
	}
	fmt.Println("goodbye")
}