1package pflag 2 3import "strconv" 4 5// -- uint Value 6type uintValue uint 7 8func newUintValue(val uint, p *uint) *uintValue { 9 *p = val 10 return (*uintValue)(p) 11} 12 13func (i *uintValue) Set(s string) error { 14 v, err := strconv.ParseUint(s, 0, 64) 15 *i = uintValue(v) 16 return err 17} 18 19func (i *uintValue) Type() string { 20 return "uint" 21} 22 23func (i *uintValue) String() string { return strconv.FormatUint(uint64(*i), 10) } 24 25func uintConv(sval string) (interface{}, error) { 26 v, err := strconv.ParseUint(sval, 0, 0) 27 if err != nil { 28 return 0, err 29 } 30 return uint(v), nil 31} 32 33// GetUint return the uint value of a flag with the given name 34func (f *FlagSet) GetUint(name string) (uint, error) { 35 val, err := f.getFlagType(name, "uint", uintConv) 36 if err != nil { 37 return 0, err 38 } 39 return val.(uint), nil 40} 41 42// UintVar defines a uint flag with specified name, default value, and usage string. 43// The argument p points to a uint variable in which to store the value of the flag. 44func (f *FlagSet) UintVar(p *uint, name string, value uint, usage string) { 45 f.VarP(newUintValue(value, p), name, "", usage) 46} 47 48// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash. 49func (f *FlagSet) UintVarP(p *uint, name, shorthand string, value uint, usage string) { 50 f.VarP(newUintValue(value, p), name, shorthand, usage) 51} 52 53// UintVar defines a uint flag with specified name, default value, and usage string. 54// The argument p points to a uint variable in which to store the value of the flag. 55func UintVar(p *uint, name string, value uint, usage string) { 56 CommandLine.VarP(newUintValue(value, p), name, "", usage) 57} 58 59// UintVarP is like UintVar, but accepts a shorthand letter that can be used after a single dash. 60func UintVarP(p *uint, name, shorthand string, value uint, usage string) { 61 CommandLine.VarP(newUintValue(value, p), name, shorthand, usage) 62} 63 64// Uint defines a uint flag with specified name, default value, and usage string. 65// The return value is the address of a uint variable that stores the value of the flag. 66func (f *FlagSet) Uint(name string, value uint, usage string) *uint { 67 p := new(uint) 68 f.UintVarP(p, name, "", value, usage) 69 return p 70} 71 72// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash. 73func (f *FlagSet) UintP(name, shorthand string, value uint, usage string) *uint { 74 p := new(uint) 75 f.UintVarP(p, name, shorthand, value, usage) 76 return p 77} 78 79// Uint defines a uint flag with specified name, default value, and usage string. 80// The return value is the address of a uint variable that stores the value of the flag. 81func Uint(name string, value uint, usage string) *uint { 82 return CommandLine.UintP(name, "", value, usage) 83} 84 85// UintP is like Uint, but accepts a shorthand letter that can be used after a single dash. 86func UintP(name, shorthand string, value uint, usage string) *uint { 87 return CommandLine.UintP(name, shorthand, value, usage) 88} 89