blob: 5a31acb999b41272bf060eb6257ee86023911e79 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// Copyright (C) 2023 Google LLC
//
// 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.
#ifndef ICING_UTIL_ENCODE_UTIL_H_
#define ICING_UTIL_ENCODE_UTIL_H_
#include <cstdint>
#include <string>
#include <string_view>
namespace icing {
namespace lib {
namespace encode_util {
// Converts an unsigned 64-bit integer to a C string that doesn't contain 0-byte
// since C string uses 0-byte as terminator. This increases the size of the
// encoded_str from 8-bytes to 10-bytes at worst.
//
// Note that it is compatible with unsigned 32-bit integers, i.e. casting an
// uint32_t to uint64_t with the same value and encoding it by this method will
// get the same string.
std::string EncodeIntToCString(uint64_t value);
// Converts a C string (encoded from EncodeIntToCString()) to an unsigned 64-bit
// integer.
uint64_t DecodeIntFromCString(std::string_view encoded_str);
} // namespace encode_util
} // namespace lib
} // namespace icing
#endif // ICING_UTIL_ENCODE_UTIL_H_
|
