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coding/byte_stream.hpp
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tatiana-yan
[coding][index] Replace char with uint8_t in ArrayByteSource/PushBackByteSink/VarRecordReader/FeatureType/FeaturesVector.
27 мар 2020, 01:08
27 мар 2020, 01:08
2c1bb4e
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#pragma once #include "base/base.hpp" #include <cstddef> #include <cstdint> #include <cstring> class ArrayByteSource { public: explicit ArrayByteSource(const void * p) : m_p(static_cast<uint8_t const *>(p)) {} uint8_t ReadByte() { return *m_p++; } void Read(void * ptr, size_t size) { memcpy(ptr, m_p, size); m_p += size; } void const * Ptr() const { return m_p; } uint8_t const * PtrUint8() const { return m_p; } void Advance(size_t size) { m_p += size; } private: uint8_t const * m_p; }; template <class StorageT> class PushBackByteSink { public: explicit PushBackByteSink(StorageT & storage) : m_Storage(storage) { } void Write(void const * p, size_t size) { // assume input buffer as buffer of bytes uint8_t const * pp = static_cast<uint8_t const *>(p); m_Storage.insert(m_Storage.end(), pp, pp + size); } size_t Pos() const { return m_Storage.size(); } private: StorageT & m_Storage; }; class CountingSink { public: CountingSink() : m_Count(0) {} inline void Write(void const *, size_t size) { m_Count += size; } inline size_t GetCount() const { return m_Count; } private: size_t m_Count; };