Method getFileSize

src/helper.cpp:497–501

https://stackoverflow.com/questions/5840148/how-can-i-get-a-files-size-in-c

// https://stackoverflow.com/questions/5840148/how-can-i-get-a-files-size-in-c
long Helper::getFileSize(std::string filename) {
	struct stat stat_buf;
	int rc = stat(filename.c_str(), &stat_buf);
	return rc == 0 ? stat_buf.st_size : -1;
}


/*