The maximum value for float64 and complex128 type in Go

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i need to know the maximum value of float64 and complex128 variable types in golang. go doesn't seem to have an equivalent of float.h and i don't know how to calculate it.

go floating-point variables
2 Answers

You can also consider using the Inf method from the math package which returns a value for infinity (positive or negative if you want), but is considered to be float64.

Not too sure if there is an argument for one or the other between math.MaxFloat64 and math.Inf(). Comparing the two I've found that Go interprets the infinity values to be larger than the max float ones.

package main

import (
    "fmt"
    "math"
)

func main() {
    infPos := math.Inf(1) // gives positive infinity
    fmt.Printf("%[1]T %[1]v\n", infPos)
    
    infNeg := math.Inf(-1) // gives negative infinity
    fmt.Printf("%[1]T %[1]v\n", infNeg)
}
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