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mondash/vendor/github.com/spf13/pflag/int.go

74 lines
2.4 KiB
Go

package pflag
import (
"fmt"
"strconv"
)
// -- int Value
type intValue int
func newIntValue(val int, p *int) *intValue {
*p = val
return (*intValue)(p)
}
func (i *intValue) Set(s string) error {
v, err := strconv.ParseInt(s, 0, 64)
*i = intValue(v)
return err
}
func (i *intValue) Type() string {
return "int"
}
func (i *intValue) String() string { return fmt.Sprintf("%v", *i) }
// IntVar defines an int flag with specified name, default value, and usage string.
// The argument p points to an int variable in which to store the value of the flag.
func (f *FlagSet) IntVar(p *int, name string, value int, usage string) {
f.VarP(newIntValue(value, p), name, "", usage)
}
// Like IntVar, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IntVarP(p *int, name, shorthand string, value int, usage string) {
f.VarP(newIntValue(value, p), name, shorthand, usage)
}
// IntVar defines an int flag with specified name, default value, and usage string.
// The argument p points to an int variable in which to store the value of the flag.
func IntVar(p *int, name string, value int, usage string) {
CommandLine.VarP(newIntValue(value, p), name, "", usage)
}
// Like IntVar, but accepts a shorthand letter that can be used after a single dash.
func IntVarP(p *int, name, shorthand string, value int, usage string) {
CommandLine.VarP(newIntValue(value, p), name, shorthand, usage)
}
// Int defines an int flag with specified name, default value, and usage string.
// The return value is the address of an int variable that stores the value of the flag.
func (f *FlagSet) Int(name string, value int, usage string) *int {
p := new(int)
f.IntVarP(p, name, "", value, usage)
return p
}
// Like Int, but accepts a shorthand letter that can be used after a single dash.
func (f *FlagSet) IntP(name, shorthand string, value int, usage string) *int {
p := new(int)
f.IntVarP(p, name, shorthand, value, usage)
return p
}
// Int defines an int flag with specified name, default value, and usage string.
// The return value is the address of an int variable that stores the value of the flag.
func Int(name string, value int, usage string) *int {
return CommandLine.IntP(name, "", value, usage)
}
// Like Int, but accepts a shorthand letter that can be used after a single dash.
func IntP(name, shorthand string, value int, usage string) *int {
return CommandLine.IntP(name, shorthand, value, usage)
}