You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
2.4 KiB
106 lines
2.4 KiB
// ------------------------------------------------------------------------
|
|
// Project atila
|
|
// Active Thing (activething.com) git.activething.com/go
|
|
//
|
|
// File name bflag.go
|
|
// Created by DEV
|
|
// Modified 15/02/2024
|
|
//
|
|
// Copyright 2024 activething.com
|
|
// ------------------------------------------------------------------------
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
// ------------------------------------------------------------------------
|
|
|
|
package bits
|
|
|
|
import (
|
|
"actvething.com/go/gogo/core/types"
|
|
"encoding/binary"
|
|
"math/bits"
|
|
)
|
|
|
|
|
|
|
|
|
|
func Has [T types.UnsignedAll](source T, flag T) bool {
|
|
return source&flag != 0 }
|
|
|
|
|
|
func Add [T types.UnsignedAll](source T, flag T) T {
|
|
return source|flag }
|
|
|
|
|
|
func AddWithMask [T types.UnsignedAll](source T, flag T, mask T) T {
|
|
return (source&mask) | flag }
|
|
|
|
|
|
func Del [T types.UnsignedAll](source T, flag T) T {
|
|
return source&^flag }
|
|
|
|
|
|
func Invert [T types.UnsignedAll](source T) T {
|
|
return ^source }
|
|
|
|
|
|
func Count[T types.UnsignedAll](source T) int {
|
|
switch binary.Size(source) {
|
|
case 1 : return bits.OnesCount8 (uint8(source))
|
|
case 2 : return bits.OnesCount16(uint16(source))
|
|
case 4 : return bits.OnesCount32(uint32(source))
|
|
case 8 : return bits.OnesCount64(uint64(source))
|
|
default:
|
|
panic(G.ErrUnsupportedFlagType)
|
|
}
|
|
}
|
|
|
|
|
|
|
|
func Extract[T types.UnsignedAll](source T) []T {
|
|
if source == 0 {
|
|
return []T{}
|
|
}
|
|
l := make([]T,0,16)
|
|
c := T(1)
|
|
for i:=1; i<= 7; i++ {
|
|
if c&source == c {
|
|
l = append(l,c)
|
|
}
|
|
c <<= 1
|
|
}
|
|
return l
|
|
}
|
|
|
|
|
|
func FlagsToNames [T types.UnsignedAll](source T, namer func(flags T) string) []string {
|
|
if source == 0 {
|
|
return []string{}
|
|
}
|
|
l := make([]string,0,16)
|
|
c := T(1)
|
|
for i:=1; i<= 7; i++ {
|
|
if c&source == c {
|
|
l = append(l,namer(c))
|
|
}
|
|
c <<= 1
|
|
}
|
|
return l
|
|
}
|
|
|
|
|
|
func NamesToFlags [T types.UnsignedAll](names []string, flagger func(name string) T) T {
|
|
var f T
|
|
for _,s := range names {
|
|
f|=flagger(s)
|
|
}
|
|
return f
|
|
} |