ref: b9477cdb942bfed223a2fa6cde5e3198d31756d0
dir: /test/utils/FileInputStream.h/
#ifndef __FILEINPUTSTREAM_H__ #define __FILEINPUTSTREAM_H__ #include <fstream> #include "InputStream.h" class FileInputStream : public InputStream { public: bool Open(const char* fileName) { file_.open(fileName, std::ios_base::in | std::ios_base::binary); return file_.is_open(); } int read(void* ptr, size_t len) { if (!file_.good()) { return -1; } file_.read(static_cast<char*>(ptr), len); return file_.gcount(); } private: std::ifstream file_; }; #endif //__FILEINPUTSTREAM_H__