I've recently been working on a C++ project of mine, and I ran into a problem with the executable:
std::string commanddata; std::string input; std::string cmdname; int commandlength = 0; if (commandlength == 0){}else{} // This is so that G++ doesn't complain that I have got a variable and never used it (I'm compiling at -Werror) while (true) { input = DS_IO.kscanf(">>>"); // This is a specific function to get input from the user // Record the command length int commandlength = sizeof(input); // Make sure that the user doesn't just send us nothing if (commandlength <= 0) { continue; } else { // Get the first word from the command std::stringstream sstream(input); sstream >> cmdname; // Loops through the input string to remove everything up to and including a space delimiter for (int i = 0; i <= commandlength; i++) { if (input[i] == 32) { commanddata = input; commanddata.erase(input.begin(), input.begin() + i); break; } else { continue; } } // print out the data to make sure it's all working std::cout << "What you entered: " << input << std::endl; std::cout << "The command name: " << cmdname << std::endl; std::cout << "The command metadata: " << commanddata << std::endl; } } The code works fine, but my problem is as soon as it reaches the end of the loop, it freaks out and gives this error:
EXPECTED BEHAVIOUR:
chemeriov@mikumputer:~/dev/DigitalSledgehammer$ ./a.out>>>echo Hello worldWhat you entered: Hello worldThe command name: echoThe command metadata: Hello world>>>EXPERIENCED BEHAVIOUR:
chemeriov@mikumputer:~/dev/DigitalSledgehammer$ ./a.out>>>echo Hello worldWhat you entered: Hello worldThe command name: echoThe command metadata: Hello worlddouble free or corruption (out)Aborted (core dumped)chemeriov@mikumputer:~/dev/DigitalSledgehammer$ How to fix this?