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endian.go
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/
endian.go
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/*
Copyright 2022 The Katalyst Authors.
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 general
import (
"encoding/binary"
"unsafe"
)
// NativeEndian is the native endian
var NativeEndian binary.ByteOrder
func init() {
buf := [2]byte{}
*(*uint16)(unsafe.Pointer(&buf[0])) = uint16(0xABCD)
switch buf {
case [2]byte{0xCD, 0xAB}:
NativeEndian = binary.LittleEndian
case [2]byte{0xAB, 0xCD}:
NativeEndian = binary.BigEndian
default:
panic("Could not determine native endianness.")
}
}