getopt: init module

getopt/uint.go

@@ -0,0 +1,73 @@
+package getopt
+
+import "fmt"
+
+type uintVal uint
+
+func (i *uintVal) String() string {
+	return fmt.Sprint(uint(*i))
+}
+
+func (i *uintVal) Set(val string) error {
+	_, err := fmt.Sscanf(val, "%d", i)
+	return err
+}
+
+// UintVar defines a uint flag with specified name, default value, and
+// usage string. The argument p points to a uint variable in which to
+// store the value of the flag.
+func (set *FlagSet) UintVar(p *uint, name string, value uint, usage string) {
+	*p = value
+	set.Var((*uintVal)(p), name, usage)
+}
+
+// UintVar defines a uint flag with specified name, default value, and
+// usage string. The argument p points to a uint variable in which to
+// store the value of the flag.
+func UintVar(p *uint, name string, value uint, usage string) {
+	CommandLine.UintVar(p, name, value, usage)
+}
+
+// Uint defines a uint flag with specified name, default value, and
+// usage string. The return value is the address of a uint variable that
+// stores the value of the flag.
+func (set *FlagSet) Uint(name string, value uint, usage string) *uint {
+	var b uint
+	set.UintVar(&b, name, value, usage)
+	return &b
+}
+
+// Uint defines a uint flag with specified name, default value, and
+// usage string. The return value is the address of a uint variable that
+// stores the value of the flag.
+func Uint(name string, value uint, usage string) *uint {
+	return CommandLine.Uint(name, value, usage)
+}
+
+type uint64Val uint64
+
+func (i *uint64Val) String() string {
+	return fmt.Sprint(uint64(*i))
+}
+
+func (i *uint64Val) Set(val string) error {
+	_, err := fmt.Sscanf(val, "%d", i)
+	return err
+}
+
+// Uint64Var defines a uint64 flag with specified name, default value,
+// and usage string. The argument p points to a uint64 variable in which
+// to store the value of the flag.
+func (set *FlagSet) Uint64Var(p *uint64, name string, value uint64, usage string) {
+	*p = value
+	set.Var((*uint64Val)(p), name, usage)
+}
+
+// Uint64 defines a uint64 flag with specified name, default value, and
+// usage string. The return value is the address of a uint64 variable
+// that stores the value of the flag.
+func (set *FlagSet) Uint64(name string, value uint64, usage string) *uint64 {
+	var b uint64
+	set.Uint64Var(&b, name, value, usage)
+	return &b
+}