github.com/jingcheng-WU/gonum@v0.9.1-0.20210323123734-f1a2a11a8f7b/unit/constant/avogadro.go (about)

     1  // Code generated by "go generate github.com/jingcheng-WU/gonum/unit/constant”; DO NOT EDIT.
     2  
     3  // Copyright ©2019 The Gonum Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package constant
     8  
     9  import (
    10  	"fmt"
    11  
    12  	"github.com/jingcheng-WU/gonum/unit"
    13  )
    14  
    15  // Avogadro is the Avogadro constant (A), the number of constituent particles contained in one mole of a substance.
    16  // The dimension of Avogadro is mol^-1. The constant is exact.
    17  const Avogadro = avogadroUnits(6.02214076e+23)
    18  
    19  type avogadroUnits float64
    20  
    21  // Unit converts the avogadroUnits to a *unit.Unit
    22  func (cnst avogadroUnits) Unit() *unit.Unit {
    23  	return unit.New(float64(cnst), unit.Dimensions{
    24  		unit.MoleDim: -1,
    25  	})
    26  }
    27  
    28  func (cnst avogadroUnits) Format(fs fmt.State, c rune) {
    29  	switch c {
    30  	case 'v':
    31  		if fs.Flag('#') {
    32  			fmt.Fprintf(fs, "%T(%v)", cnst, float64(cnst))
    33  			return
    34  		}
    35  		fallthrough
    36  	case 'e', 'E', 'f', 'F', 'g', 'G':
    37  		p, pOk := fs.Precision()
    38  		w, wOk := fs.Width()
    39  		switch {
    40  		case pOk && wOk:
    41  			fmt.Fprintf(fs, "%*.*"+string(c), w, p, cnst.Unit())
    42  		case pOk:
    43  			fmt.Fprintf(fs, "%.*"+string(c), p, cnst.Unit())
    44  		case wOk:
    45  			fmt.Fprintf(fs, "%*"+string(c), w, cnst.Unit())
    46  		default:
    47  			fmt.Fprintf(fs, "%"+string(c), cnst.Unit())
    48  		}
    49  	default:
    50  		fmt.Fprintf(fs, "%%!"+string(c)+"(constant.avogadroUnits=%v mol^-1)", float64(cnst))
    51  	}
    52  }