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27 lines
754 B
C++
27 lines
754 B
C++
#pragma once
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#include <DB/IO/ReadBuffer.h>
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namespace DB
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{
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/** Allows to read from memory range.
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* In comparison with just ReadBuffer, it only adds convenient constructors, that do const_cast.
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* In fact, ReadBuffer will not modify data in buffer, but it requires non-const pointer.
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*/
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class ReadBufferFromMemory : public ReadBuffer
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{
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public:
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ReadBufferFromMemory(const char * buf, size_t size)
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: ReadBuffer(const_cast<char *>(buf), size, 0) {}
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ReadBufferFromMemory(const unsigned char * buf, size_t size)
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: ReadBuffer(const_cast<char *>(reinterpret_cast<const char *>(buf)), size, 0) {}
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ReadBufferFromMemory(const signed char * buf, size_t size)
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: ReadBuffer(const_cast<char *>(reinterpret_cast<const char *>(buf)), size, 0) {}
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};
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}
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