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// Code generated by "go generate gonum.org/v1/gonum/unit”; DO NOT EDIT.
// Copyright ©2014 The Gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package unit
import (
"errors"
"fmt"
"math"
"unicode/utf8"
)
// Mass represents a mass in kilograms.
type Mass float64
const (
Gram Mass = 1e-3
Kilogram = Kilo * Gram
)
// Unit converts the Mass to a *Unit.
func (m Mass) Unit() *Unit {
return New(float64(m), Dimensions{
MassDim: 1,
})
}
// Mass allows Mass to implement a Masser interface.
func (m Mass) Mass() Mass {
return m
}
// From converts the unit into the receiver. From returns an
// error if there is a mismatch in dimension.
func (m *Mass) From(u Uniter) error {
if !DimensionsMatch(u, Gram) {
*m = Mass(math.NaN())
return errors.New("unit: dimension mismatch")
}
*m = Mass(u.Unit().Value())
return nil
}
func (m Mass) Format(fs fmt.State, c rune) {
switch c {
case 'v':
if fs.Flag('#') {
fmt.Fprintf(fs, "%T(%v)", m, float64(m))
return
}
fallthrough
case 'e', 'E', 'f', 'F', 'g', 'G':
p, pOk := fs.Precision()
w, wOk := fs.Width()
const unit = " kg"
switch {
case pOk && wOk:
fmt.Fprintf(fs, "%*.*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), p, float64(m))
case pOk:
fmt.Fprintf(fs, "%.*"+string(c), p, float64(m))
case wOk:
fmt.Fprintf(fs, "%*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), float64(m))
default:
fmt.Fprintf(fs, "%"+string(c), float64(m))
}
fmt.Fprint(fs, unit)
default:
fmt.Fprintf(fs, "%%!%c(%T=%g kg)", c, m, float64(m))
}
}
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