I am wrapping up a Linux/C programming assignment that requires several small programs for encrypting and decrypting text. There is a bash grading script which will be used to assess the performance of my programs. The script runs fine on my local machine and all of my tests pass, but when I run everything on my University's server via SSH, the script is not behaving the same. I am fairly certain the error exists somewhere in my C code, because no other students are having this issue. The 4 main programs consist of 2 daemons which wait for clients to connect via sockets, and the two clients. There is a daemon/client pair for handling encryption, and another for handling decryption.
And here is a screenshot of what happens with the same files on the remote server:As you can see, in the 4th and 5th tests (where the program's output should read), it's instead showing "ssIgnore this message". In later tests (not pictured) there is another message that reads "ddServer to client message". This text appears nowhere in my code or the grading script, so it must be server-side.
Doesn't it allocate the class static variable to the heap, thus executing its algorithm then destroying it when the program ends - or. What exactly does it tell me? When the static variable is initialized, it takes place first before any of my other functions?
I have 18,000 lines of code that i would like to upgrade to include a log file. I want to replace the cout with a stream or something similar so that i can easily output to the console and to a log file at the same time with minimal change to 18,000 lines of code. I'm nearly there.
I used this post heavily as a reference; [URL] .... however it is highly incomplete and this is above my knowledge so I'm struggling somewhat.
I was able to get the bulk of it working with some guess work and modification to the code from that link.
For some reason i had to comment out "mstream(void);" and "~mstream(void);"
to work for endl as per the previous link. Not sure if i'm even putting it in the right place. Otherwise the code works fine for streaming to both locations and such. See the code below;
#include <iostream> #include <fstream> #include <string> using namespace std; class mstream {
I'm trying to write something that when a user is at the command line, the user can type and it displays of list of commands the user can use to run the application.
is there a way to change output of console without clearing the screen? so making some kind of animation?
e.g.
I have used
Code: cout << "Hello";
is there any way I can erase last "lo" and replace it by "p" so I will have "Help" without clearing the screen ? just changing the output like some text file?
I tried using something like this
Code: #include <iostream> using namespace std; int main() { cout << "abcd"; long pos = cout.tellp(); cout.seekp(pos-2); cout.write("ef", 2); cout.flush(); cin.get(); return 0; }
I am currently doing a complex number calculator ,and i wish to output my data to a txt.file . i tried fstream and it doesnt work. However the txt.file was created but no text was output.
Below is the program:
#include<iomanip> #include<cmath> #include<iostream> #include<fstream> using namespace std; #define PI 3.14159265358979323 double z,x;
[Code]..
When impedance A & B are in series,the effective Impedance is " <<setprecision(4)<< z << " + j" <<setprecision(3)<< x<<endl;
else cout << "
When impedance A & B are in series,the effective Impedance is " <<setprecision(4)<<z << " - j" <<setprecision(3)<< x*(-1)<<endl; } void Complex::showdiv(double &z,double &x) { if ( x>= 0 ) cout << "
When impedance A & B are in parallel,the effective Impedance is " <<setprecision(4)<< z << " + j" <<setprecision(3)<< x <<endl; else cout << "
When impedance A & B are in parallel,the effective Impedance is " <<setprecision(4)<<z << " - j" <<setprecision(3)<< x*(-1) <<endl; }
class Polar:public Complex //inheritant from class Complex { protected: double r,d,r2,d2; public: void PolarValue(); void ShowPolar();
Alright, so to better myself with network logic I've decided to make a small net game.
I need to input commands to the console as well as output status updates at the same time. I'd prefer to write a gui interface for that, but I'd rather work with WinAPI as little as possible (I mean, look at the way it's designed...).
I'd like to do this with standard operations, limiting dependencies is a must for me.
I used to use OutputDebugString, and not using it now because it only allows to strings to be outputted, are there any methods that I can dump virtually anything to the console?
cout << thing << endl;
But what if I am not start running the program from the command prompt?
I am creating a console based application which needs to be dual tasking, which prompts me to share a single console for the GUI console based and inputs from the user.
I want to know if there is a mechanism through I can open more than one command prompt so that I would use efficiently both of them.
Furthermore, I would need also to know how to control on which to print and on which not to be printed.
Is there such a thing?
I am using Visual Studio 2012 Ultimate on a Windows 8.1 Professional PC.
So, I'm making a program in C++ that emulates a full screen console... I used SetCurrentConsoleFontEx to set the font to 12x16 but it sucks...
Anyway, I read here: [URL] .... that also the console font can be changed, but I can't make it work! How can i set the font to Lucida Console? This is the function I use to change font size:
I have an a problem I need to make lottery random generation program what asks from user how many lines to gerenate random numbers. But i am now stuck.
Console.WriteLine(" choose how many numbers "); int i = int.Parse(Console.ReadLine()); Random randomizer = new Random(); for(int j = 0; j < 7; j++) { i = randomizer.Next(1, 39); } Console.WriteLine("Your random numbers are{0}", i); Console.ReadLine();
I am working on a project that uses a web service to extract a PNG image from a web server and save it on a local machine. It's done via a system call. I can get the output of the system call to a FILE but it appears to be losing data, most notably the PNG chunk names (IHDR/PLTE/IDAT/IEND, notably). (Unfortunately piping the output to an exterior file does not work through a system call.) The end result is ~6KB smaller than the file I am intending to retrieve.
This is the code I'm using (adapted from other material I found via searches here):
I want some people to see my C++ program, enter inputs (they can enter number 1, 2, 3, etc) as CIN, and then the program runs as it would if they were sitting in my place.
I have seen a few places which try to do this e.g.
[URL]
The problem is the CIN is not fully featured. For example in the first website you have to enter the input before you run the program. So that would not work for a program where CIN was being done all the time.
So I can get a domain, ask them to telnet into the Linux shell and compile and run my c++ Demo program. Is that the best way? Thats the worst case. I send them the .cpp file and they'll have to run and compile it on their own machine.
The best case is that they click on a link, get an online console and interact with it like they would with a real input/output c++ interface.how this can be done?
Why is it that the program doesn't stop for me to see the output? Here is my code:
// accessing mapped values #include <iostream> #include <map> #include <string> using namespace std; int main () { char str[] = "This table is a good table, while this book is a good book.There is an umbrella on the table"; int n = strlen( str );
I am trying to get my program to output the name from a file. The user should enter first name "or" last name. and if the user does not type the name from the input file. the get an error message. How do you do it
Is there a good way to slow down program output? usleep and nanosleep don't slow it down enough, delay doesn't work, and sleep keeps freezing my program. I am using Linux since I think this makes a difference in what I have to use.
My project involves writing a c program to generate a set of 70 decimal numbers. I want to save the output (these 70 numbers) as a txt file. I tried the following:
1. prt scr of output screen and pasting it in notepad. NOT WORKING 2. going to DOS SHELL and doing the following: c:TCBIN>output.exe>>output.txt NOT WORKING. Text file is generated, but it does not contain output. It just says: illegal command: output.exe
