uint32.go (3088B)
1 package pflag 2 3 import "strconv" 4 5 // -- uint32 value 6 type uint32Value uint32 7 8 func newUint32Value(val uint32, p *uint32) *uint32Value { 9 *p = val 10 return (*uint32Value)(p) 11 } 12 13 func (i *uint32Value) Set(s string) error { 14 v, err := strconv.ParseUint(s, 0, 32) 15 *i = uint32Value(v) 16 return err 17 } 18 19 func (i *uint32Value) Type() string { 20 return "uint32" 21 } 22 23 func (i *uint32Value) String() string { return strconv.FormatUint(uint64(*i), 10) } 24 25 func uint32Conv(sval string) (interface{}, error) { 26 v, err := strconv.ParseUint(sval, 0, 32) 27 if err != nil { 28 return 0, err 29 } 30 return uint32(v), nil 31 } 32 33 // GetUint32 return the uint32 value of a flag with the given name 34 func (f *FlagSet) GetUint32(name string) (uint32, error) { 35 val, err := f.getFlagType(name, "uint32", uint32Conv) 36 if err != nil { 37 return 0, err 38 } 39 return val.(uint32), nil 40 } 41 42 // Uint32Var defines a uint32 flag with specified name, default value, and usage string. 43 // The argument p points to a uint32 variable in which to store the value of the flag. 44 func (f *FlagSet) Uint32Var(p *uint32, name string, value uint32, usage string) { 45 f.VarP(newUint32Value(value, p), name, "", usage) 46 } 47 48 // Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash. 49 func (f *FlagSet) Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) { 50 f.VarP(newUint32Value(value, p), name, shorthand, usage) 51 } 52 53 // Uint32Var defines a uint32 flag with specified name, default value, and usage string. 54 // The argument p points to a uint32 variable in which to store the value of the flag. 55 func Uint32Var(p *uint32, name string, value uint32, usage string) { 56 CommandLine.VarP(newUint32Value(value, p), name, "", usage) 57 } 58 59 // Uint32VarP is like Uint32Var, but accepts a shorthand letter that can be used after a single dash. 60 func Uint32VarP(p *uint32, name, shorthand string, value uint32, usage string) { 61 CommandLine.VarP(newUint32Value(value, p), name, shorthand, usage) 62 } 63 64 // Uint32 defines a uint32 flag with specified name, default value, and usage string. 65 // The return value is the address of a uint32 variable that stores the value of the flag. 66 func (f *FlagSet) Uint32(name string, value uint32, usage string) *uint32 { 67 p := new(uint32) 68 f.Uint32VarP(p, name, "", value, usage) 69 return p 70 } 71 72 // Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash. 73 func (f *FlagSet) Uint32P(name, shorthand string, value uint32, usage string) *uint32 { 74 p := new(uint32) 75 f.Uint32VarP(p, name, shorthand, value, usage) 76 return p 77 } 78 79 // Uint32 defines a uint32 flag with specified name, default value, and usage string. 80 // The return value is the address of a uint32 variable that stores the value of the flag. 81 func Uint32(name string, value uint32, usage string) *uint32 { 82 return CommandLine.Uint32P(name, "", value, usage) 83 } 84 85 // Uint32P is like Uint32, but accepts a shorthand letter that can be used after a single dash. 86 func Uint32P(name, shorthand string, value uint32, usage string) *uint32 { 87 return CommandLine.Uint32P(name, shorthand, value, usage) 88 }