1package pflag
2
3import "strconv"
4
5// -- float32 Value
6type float32Value float32
7
8func newFloat32Value(val float32, p *float32) *float32Value {
9	*p = val
10	return (*float32Value)(p)
11}
12
13func (f *float32Value) Set(s string) error {
14	v, err := strconv.ParseFloat(s, 32)
15	*f = float32Value(v)
16	return err
17}
18
19func (f *float32Value) Type() string {
20	return "float32"
21}
22
23func (f *float32Value) String() string { return strconv.FormatFloat(float64(*f), 'g', -1, 32) }
24
25func float32Conv(sval string) (interface{}, error) {
26	v, err := strconv.ParseFloat(sval, 32)
27	if err != nil {
28		return 0, err
29	}
30	return float32(v), nil
31}
32
33// GetFloat32 return the float32 value of a flag with the given name
34func (f *FlagSet) GetFloat32(name string) (float32, error) {
35	val, err := f.getFlagType(name, "float32", float32Conv)
36	if err != nil {
37		return 0, err
38	}
39	return val.(float32), nil
40}
41
42// Float32Var defines a float32 flag with specified name, default value, and usage string.
43// The argument p points to a float32 variable in which to store the value of the flag.
44func (f *FlagSet) Float32Var(p *float32, name string, value float32, usage string) {
45	f.VarP(newFloat32Value(value, p), name, "", usage)
46}
47
48// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
49func (f *FlagSet) Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
50	f.VarP(newFloat32Value(value, p), name, shorthand, usage)
51}
52
53// Float32Var defines a float32 flag with specified name, default value, and usage string.
54// The argument p points to a float32 variable in which to store the value of the flag.
55func Float32Var(p *float32, name string, value float32, usage string) {
56	CommandLine.VarP(newFloat32Value(value, p), name, "", usage)
57}
58
59// Float32VarP is like Float32Var, but accepts a shorthand letter that can be used after a single dash.
60func Float32VarP(p *float32, name, shorthand string, value float32, usage string) {
61	CommandLine.VarP(newFloat32Value(value, p), name, shorthand, usage)
62}
63
64// Float32 defines a float32 flag with specified name, default value, and usage string.
65// The return value is the address of a float32 variable that stores the value of the flag.
66func (f *FlagSet) Float32(name string, value float32, usage string) *float32 {
67	p := new(float32)
68	f.Float32VarP(p, name, "", value, usage)
69	return p
70}
71
72// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
73func (f *FlagSet) Float32P(name, shorthand string, value float32, usage string) *float32 {
74	p := new(float32)
75	f.Float32VarP(p, name, shorthand, value, usage)
76	return p
77}
78
79// Float32 defines a float32 flag with specified name, default value, and usage string.
80// The return value is the address of a float32 variable that stores the value of the flag.
81func Float32(name string, value float32, usage string) *float32 {
82	return CommandLine.Float32P(name, "", value, usage)
83}
84
85// Float32P is like Float32, but accepts a shorthand letter that can be used after a single dash.
86func Float32P(name, shorthand string, value float32, usage string) *float32 {
87	return CommandLine.Float32P(name, shorthand, value, usage)
88}
89