Avro C++

Zigzag.hh
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1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
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9 *
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13 * distributed under the License is distributed on an "AS IS" BASIS,
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15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 #ifndef avro_Encoding_hh__
20 #define avro_Encoding_hh__
21
22 #include <array>
23 #include <cstddef>
24 #include <cstdint>
25
26 #include "Config.hh"
29
30 namespace avro {
31
32 AVRO_DECL constexpr uint64_t encodeZigzag64(int64_t input) noexcept {
33 return ((static_cast<uint64_t>(input) << 1) ^ (input >> 63));
34 }
35 AVRO_DECL constexpr int64_t decodeZigzag64(uint64_t input) noexcept {
36 return static_cast<int64_t>(((input >> 1) ^ -(static_cast<int64_t>(input) & 1)));
37 }
38
39 AVRO_DECL constexpr uint32_t encodeZigzag32(int32_t input) noexcept {
40 return (static_cast<uint32_t>(input) << 1) ^ (input >> 31);
41 }
42 AVRO_DECL constexpr int32_t decodeZigzag32(uint32_t input) noexcept {
43 return static_cast<int32_t>(((input >> 1) ^ -(static_cast<int64_t>(input) & 1)));
44 }
45
46 AVRO_DECL size_t encodeInt32(int32_t input, std::array<uint8_t, 5> &output) noexcept;
47 AVRO_DECL size_t encodeInt64(int64_t input, std::array<uint8_t, 10> &output) noexcept;
48
49 } // namespace avro
50
51 #endif
avro
A bunch of templates and specializations for encoding and decoding specific types.
Definition: AvroParse.hh:30