22 lines
497 B
C
22 lines
497 B
C
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#ifndef __FILEINPUTSTREAM_H__
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#define __FILEINPUTSTREAM_H__
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#include <fstream>
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#include "InputStream.h"
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class FileInputStream : public InputStream {
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public:
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bool Open(const char* fileName) {
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file_.open(fileName, std::ios_base::in | std::ios_base::binary);
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return file_.is_open();
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}
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int read(void* ptr, size_t len) {
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file_.read(static_cast<char*>(ptr), len);
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return file_.eof() ? -1 : file_.gcount();
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}
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private:
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std::ifstream file_;
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};
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#endif //__FILEINPUTSTREAM_H__
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