25 lines
537 B
C++
25 lines
537 B
C++
#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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if (!file_.good()) {
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return -1;
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}
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file_.read (static_cast<char*> (ptr), len);
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return (int) 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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