package flag
Float64Var defines a float64 flag with specified name(2nd parameter), default value(3rd parameter), and usage string(4th parameter). The argument p(1st parameter) points to a float64 variable in which to store the value of the flag.
Golang flag.FlagSet.Float64Var() function usage example
package main
import (
"flag"
"fmt"
)
func main() {
flagSet := flag.NewFlagSet("check", flag.ExitOnError)
var p float64
flagSet.Float64Var(&p, "diskchecktimeout", 1.0, "Time before disk check process time out. Default is 1.0")
flag.Parse()
fmt.Println(p)
}
Output :
1
Reference :
http://golang.org/pkg/flag/#FlagSet.Float64Var
