ifstream

This is my first post so sorry if I break any unwritten rules. :P I am a beginner/intermediate programmer and I need help with this program. I am trying to infile/read/ifstream (whatever) a .dat file as HEX into one big string. I don't want to read it as text. I want the hex format so I can search through the string and make changes to it. (Like an automatic hex editor) ex. my file "00000000.dat" is ~7kb in size. In hex editor, the hex look like this: 0A 00 00 0A 00 05 4C 65 76 65 6C 07 00 06 42 6C 6F 63 6B 73 00 00 80 00 07 FF 39 01 FF 03 03 02 FF 3F 00 07 FF 39 01 FF 03 03 02 FF 3F 00 07 FF

I'm having trouble validating the existence of REGISTER.txt for input purposes in a function (see below). My understanding is that if the file doesn't exist, then the file won't be opened and the file stream variable (inData) will be false. Thus, I can use that variable in an if/else statement to verify whether or not it opened. But even though REGISTER.txt is in the same directory as my .cpp file, my code still says that it wasn't opened. Here's the thing though. When I run the same exact code in Dev-C++ compiler, it works fine and the file is found. Now, I understand compilers are different,

void bot_manager_item::create_games() { games.clear(); std::ifstream paths_in("C:\\Users\\bill hank\\Documents\\bot_plugins\\directory_listing.txt", std::ios::in); while (paths_in.good()) { send_message("The path was good."); char q[5000]; paths_in.getline(q, 5000); send_message(q); games.push_back(qanda(q)); } paths_in.close(); } The file I'm loading exists, what else might be wrong? paths_in.good keeps failing. Edit: I figured it out. Wow am I annoyed by the answer to this. Basically Windows lets you say whether you want to show file extensions or not. This windows installation is set to say

I'm trying to read binary data from a file using ifstream. Specifically, I'm trying to populate this "Header" struct with data read from a file: struct Header { char id[16]; int length; int count; }; Now, if I read the file in this way, the result is exactly what I want: input.read((char*)&hdr, sizeof(hdr)); But if I instead read each variable of the struct manually, the results are gibberish: input.read((char*)&hdr.id, sizeof(hdr.id)); input.read((char*)&hdr.length, sizeof(hdr.length)); input.read((char*)&hdr.count, sizeof(hdr.count)); My question is, what is happening here that makes these

I need to read values from a file into my program. The file is opening successfully, but then it crashes right away. Is there something wrong with my code? void createList(intNode*& intList) { intNode* lastInt; //points to last integer in file lastInt = NULL; int fileInt; //int read from input file ifstream intInputFile; intInputFile.open("intInput.txt"); if (intInputFile.is_open()) { cout << "intInput.txt open successful" << endl; } else { cout << "intInput.txt open unsuccessful" << endl; } intInputFile >> fileInt; while(!intInputFile.eof()) { intNode* anotherInt; anotherInt = new intNode; if

void maintainFileName () { std :: ifstream myfile; myfile.open ("zoomLevels.txt"); if (myfile.is_open ()) { // Move to end of the file, myfile.seekg (0, std::ios::end); // and then six characters back to pick up the last file number. myfile.seekg (6, std::ios::beg); int len = 1; char *t = new char[len]; myfile.read(t, len); qDebug () << "\nt: " << *t << "\n"; } else { qDebug () << "\nsorry"; } } The file contains this: 78.8115,29.582,1,01.rda 78.8115,29.582,2,02.rda 76.3671,30.2201,1,11.rda 76.3671,30.2201,2,12.rda 78.1908,30.3007,1,01.rda 78.1908,30.3007,2,02.rda 77.3284,29.1415,1,01.rda 77