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// Copyright © 2016 Alan A. A. Donovan & Brian W. Kernighan.
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/

// See page 181.

// Tempflag prints the value of its -temp (temperature) flag.
package main

import (
    "flag"
    "fmt"

    "gopl.io/ch7/tempconv"
)

//!+
var temp = tempconv.CelsiusFlag("temp", 20.0, "the temperature")

func main() {
    flag.Parse()
    fmt.Println(*temp)
}

//!-