blob: 04b5492a7d365cbfb9e979055151ec13698b3cb1 [file] [log] [blame]
Matthias Andreas Benkard832a54e2019-01-29 09:27:38 +01001package pflag
2
3import "strconv"
4
5// -- float64 Value
6type float64Value float64
7
8func newFloat64Value(val float64, p *float64) *float64Value {
9 *p = val
10 return (*float64Value)(p)
11}
12
13func (f *float64Value) Set(s string) error {
14 v, err := strconv.ParseFloat(s, 64)
15 *f = float64Value(v)
16 return err
17}
18
19func (f *float64Value) Type() string {
20 return "float64"
21}
22
23func (f *float64Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 64) }
24
25func float64Conv(sval string) (interface{}, error) {
26 return strconv.ParseFloat(sval, 64)
27}
28
29// GetFloat64 return the float64 value of a flag with the given name
30func (f *FlagSet) GetFloat64(name string) (float64, error) {
31 val, err := f.getFlagType(name, "float64", float64Conv)
32 if err != nil {
33 return 0, err
34 }
35 return val.(float64), nil
36}
37
38// Float64Var defines a float64 flag with specified name, default value, and usage string.
39// The argument p points to a float64 variable in which to store the value of the flag.
40func (f *FlagSet) Float64Var(p *float64, name string, value float64, usage string) {
41 f.VarP(newFloat64Value(value, p), name, "", usage)
42}
43
44// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
45func (f *FlagSet) Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
46 f.VarP(newFloat64Value(value, p), name, shorthand, usage)
47}
48
49// Float64Var defines a float64 flag with specified name, default value, and usage string.
50// The argument p points to a float64 variable in which to store the value of the flag.
51func Float64Var(p *float64, name string, value float64, usage string) {
52 CommandLine.VarP(newFloat64Value(value, p), name, "", usage)
53}
54
55// Float64VarP is like Float64Var, but accepts a shorthand letter that can be used after a single dash.
56func Float64VarP(p *float64, name, shorthand string, value float64, usage string) {
57 CommandLine.VarP(newFloat64Value(value, p), name, shorthand, usage)
58}
59
60// Float64 defines a float64 flag with specified name, default value, and usage string.
61// The return value is the address of a float64 variable that stores the value of the flag.
62func (f *FlagSet) Float64(name string, value float64, usage string) *float64 {
63 p := new(float64)
64 f.Float64VarP(p, name, "", value, usage)
65 return p
66}
67
68// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
69func (f *FlagSet) Float64P(name, shorthand string, value float64, usage string) *float64 {
70 p := new(float64)
71 f.Float64VarP(p, name, shorthand, value, usage)
72 return p
73}
74
75// Float64 defines a float64 flag with specified name, default value, and usage string.
76// The return value is the address of a float64 variable that stores the value of the flag.
77func Float64(name string, value float64, usage string) *float64 {
78 return CommandLine.Float64P(name, "", value, usage)
79}
80
81// Float64P is like Float64, but accepts a shorthand letter that can be used after a single dash.
82func Float64P(name, shorthand string, value float64, usage string) *float64 {
83 return CommandLine.Float64P(name, shorthand, value, usage)
84}