github.com/monax/eris-db@v0.25.0/binary/byteslice.go (about)

     1  // Copyright 2017 Monax Industries Limited
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //    http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package binary
    16  
    17  func Fingerprint(slice []byte) []byte {
    18  	fingerprint := make([]byte, 6)
    19  	copy(fingerprint, slice)
    20  	return fingerprint
    21  }
    22  
    23  func IsZeros(slice []byte) bool {
    24  	for _, byt := range slice {
    25  		if byt != byte(0) {
    26  			return false
    27  		}
    28  	}
    29  	return true
    30  }
    31  
    32  func RightPadBytes(slice []byte, l int) []byte {
    33  	if l < len(slice) {
    34  		return slice
    35  	}
    36  	padded := make([]byte, l)
    37  	copy(padded[0:len(slice)], slice)
    38  	return padded
    39  }
    40  
    41  func LeftPadBytes(slice []byte, l int) []byte {
    42  	if l < len(slice) {
    43  		return slice
    44  	}
    45  	padded := make([]byte, l)
    46  	copy(padded[l-len(slice):], slice)
    47  	return padded
    48  }