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Go – How to check if number is an IEEE 754 not-a-number value in go

Here, We will learn how to check if number is an IEEE 754 not-a-number value in go. We can get it by using IsNaN() function in math package in go golang.

Function prototype:

func IsNaN(num float64) (is bool)

Return value:

IsNaN() function in math package checks
whether num is an IEEE 754 “not-a-number”
value.

Example with code:

package main

import (
  "fmt"
  "math"
)

func main() {

  no := math.IsNaN(1)
  fmt.Println(no)

  no = math.IsNaN(2.7)
  fmt.Println(no)

  no = math.IsNaN(0.2)
  fmt.Println(no)

  no = math.IsNaN(-2)
  fmt.Println(no)

  no = math.IsNaN(-2.7)
  fmt.Println(no)

}

Output:

false
false
false
false
false

To learn more about golang, Please refer given below link:

https://www.techieindoor.com/go-lang-tutorial/

References:

https://golang.org/doc/
https://golang.org/pkg/
Posted in golang, math

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