f.Var(newFloat64Value(value, p), name, usage)
}

// Float64Var defines a float64 flag with specified name, default value, and usage string.
// The argument p points to a float64 variable in which to store the value of the flag.
func Float64Var(p *float64, name string, value float64, usage string) {
	CommandLine.Var(newFloat64Value(value, p), name, usage)
}