47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
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/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __NOGROD_LEB128_DECODER_
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#define __NOGROD_LEB128_DECODER_
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#include <stddef.h>
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#include <cstdint>
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#include "berberis/base/macros.h"
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namespace nogrod {
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class Leb128Decoder {
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public:
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Leb128Decoder(const uint8_t* buffer, size_t size);
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// Returns number of bytes it took do decode the value, 0 if decode has failed.
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size_t Decode(size_t offset, uint64_t* result) const;
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private:
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const uint8_t* buffer_;
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size_t size_;
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DISALLOW_IMPLICIT_CONSTRUCTORS(Leb128Decoder);
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};
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size_t DecodeLeb128(const uint8_t* buffer, uint64_t size, uint64_t* result);
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size_t DecodeSleb128(const uint8_t* buffer, uint64_t size, int64_t* result);
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} // namespace nogrod
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#endif // __NOGROD_LEB128_DECODER_
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