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int32.go (3013B)

      1 package pflag
      2 
      3 import "strconv"
      4 
      5 // -- int32 Value
      6 type int32Value int32
      7 
      8 func newInt32Value(val int32, p *int32) *int32Value {
      9 	*p = val
     10 	return (*int32Value)(p)
     11 }
     12 
     13 func (i *int32Value) Set(s string) error {
     14 	v, err := strconv.ParseInt(s, 0, 32)
     15 	*i = int32Value(v)
     16 	return err
     17 }
     18 
     19 func (i *int32Value) Type() string {
     20 	return "int32"
     21 }
     22 
     23 func (i *int32Value) String() string { return strconv.FormatInt(int64(*i), 10) }
     24 
     25 func int32Conv(sval string) (interface{}, error) {
     26 	v, err := strconv.ParseInt(sval, 0, 32)
     27 	if err != nil {
     28 		return 0, err
     29 	}
     30 	return int32(v), nil
     31 }
     32 
     33 // GetInt32 return the int32 value of a flag with the given name
     34 func (f *FlagSet) GetInt32(name string) (int32, error) {
     35 	val, err := f.getFlagType(name, "int32", int32Conv)
     36 	if err != nil {
     37 		return 0, err
     38 	}
     39 	return val.(int32), nil
     40 }
     41 
     42 // Int32Var defines an int32 flag with specified name, default value, and usage string.
     43 // The argument p points to an int32 variable in which to store the value of the flag.
     44 func (f *FlagSet) Int32Var(p *int32, name string, value int32, usage string) {
     45 	f.VarP(newInt32Value(value, p), name, "", usage)
     46 }
     47 
     48 // Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
     49 func (f *FlagSet) Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
     50 	f.VarP(newInt32Value(value, p), name, shorthand, usage)
     51 }
     52 
     53 // Int32Var defines an int32 flag with specified name, default value, and usage string.
     54 // The argument p points to an int32 variable in which to store the value of the flag.
     55 func Int32Var(p *int32, name string, value int32, usage string) {
     56 	CommandLine.VarP(newInt32Value(value, p), name, "", usage)
     57 }
     58 
     59 // Int32VarP is like Int32Var, but accepts a shorthand letter that can be used after a single dash.
     60 func Int32VarP(p *int32, name, shorthand string, value int32, usage string) {
     61 	CommandLine.VarP(newInt32Value(value, p), name, shorthand, usage)
     62 }
     63 
     64 // Int32 defines an int32 flag with specified name, default value, and usage string.
     65 // The return value is the address of an int32 variable that stores the value of the flag.
     66 func (f *FlagSet) Int32(name string, value int32, usage string) *int32 {
     67 	p := new(int32)
     68 	f.Int32VarP(p, name, "", value, usage)
     69 	return p
     70 }
     71 
     72 // Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
     73 func (f *FlagSet) Int32P(name, shorthand string, value int32, usage string) *int32 {
     74 	p := new(int32)
     75 	f.Int32VarP(p, name, shorthand, value, usage)
     76 	return p
     77 }
     78 
     79 // Int32 defines an int32 flag with specified name, default value, and usage string.
     80 // The return value is the address of an int32 variable that stores the value of the flag.
     81 func Int32(name string, value int32, usage string) *int32 {
     82 	return CommandLine.Int32P(name, "", value, usage)
     83 }
     84 
     85 // Int32P is like Int32, but accepts a shorthand letter that can be used after a single dash.
     86 func Int32P(name, shorthand string, value int32, usage string) *int32 {
     87 	return CommandLine.Int32P(name, shorthand, value, usage)
     88 }