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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 43.
//!+
// Cf converts its numeric argument to Celsius and Fahrenheit.
package main
import (
"fmt"
"os"
"strconv"
"gopl.io/ch2/tempconv"
)
func main() {
for _, arg := range os.Args[1:] {
t, err := strconv.ParseFloat(arg, 64)
if err != nil {
fmt.Fprintf(os.Stderr, "cf: %v\n", err)
os.Exit(1)
}
f := tempconv.Fahrenheit(t)
c := tempconv.Celsius(t)
fmt.Printf("%s = %s, %s = %s\n",
f, tempconv.FToC(f), c, tempconv.CToF(c))
}
}
//!-
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