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