Im writing program for a rail fence cipher that should run from the command prompt and take in two .txt files, one containing the key for how many rails there should be (between 1 and 25) and the other containing the message to be encrypted. Both of those txt files should be entered from the command prompt, taken in with the program's arguments, not asking the user for input I think I have the logistics of how to get the program to encrypt it worked out, but every time I try to run the program it keeps on crashing.
The program should run when I enter this:./railcipher samplekey.txt samplemessage.txt
I'm pretty sure my issue lies within my first few lines of code, with the main(), or with the FILE*, but I dont know what I would need to change it to for it to work properly.
Code:
#include<stdio.h>
#include<string.h>
#include <stdlib.h>
int main(int argc, char **argv[])
If I compile code which uses cin using the command prompt, then run the compiled program a new window opens when it reaches the cin line of code, for the input. If there is no cin used then all printing happens in the original window. Is there a way to stop this behavior of the opening of a new window?
Code: cout << "Put in the names of people, press q to exit" << ' '; while((cin >> people_inp) && (people_inp != "q")){ Person *p = newPerson(people_inp);
[Code] ....
The problem of this code is when you put in the names(via cin) and press enter command prompt will disappear. What should I do so that Command prompt will not disappear after I input some names? I mean it disappears without you pressing a key.
I am facing a problem in C++,I want to execute a command in Command prompt from a specific path.I am able o select a path and execute cmd.exe using the function ShellExecute but the problem is after selecting the path I am not able to execute the command, the command is appearing on another command prompt.
I'm trying to develop a programme which, amongst other things, prompts the user to enter the filename which is to be opened. This is what my code looks like currently:
char filename[20]; FILE *myfile;
printf("Enter the full file name you would like to open:"); scanf("%s", filename);
[Code] .....
However, this only ever returns File Not Found - the file is stored in the same directory as the program, and I have tried looking up this issue online, to no avail ....
my C++ console application should be like a command prompt. There are "command lines" to execute in the command prompt.Here are my main prompts for spotlight:
Encode - New data entry View - Read data from text file Search - Find record from text file Update - Save changes per text line from the existing text file Delete - Delete lines from the text file
Now, I manage to do the tasks for Encode, View, and Search..But unfortunately, not in Update..I've been working this for a week already..
#include "stdafx.h" #include "iostream" #include "string" #include "fstream" using namespace std; //to omit the std }
I am looking to make a program for C++ that has a GUI other than command prompt. The program I am trying to create will ask certain questions and display the results at the end after all questions are asked and have 2 copies of the results one over the other that can be printed as a receipt. Basically I am wondering can I do this using C++. Also I want another GUI other than command prompt as well. Something close to what windows uses if possible.
So I have to write a step in my program that reads in up to 8 variables. Simple, but if the User submits an invalid value, I have to give an error message and ask him to re-enter the value until he enters a valid number. Here's my while loop that works perfectly:
Code:
while (true) { printf(" Enter the mark given by Judge 1: "); scanf("%f", &m1); if ((m1 >= 0.0) && (m1 <= 10.0)) { break; }
[code]...
I'm not sure what to write in the else statement to make the programme understand that it has to repeat the exact same step but without adding 1 to index. Is this possible or do I have to suck it up and just use while loops instead? I'm very new to programming.
i want to know how to copy data from already written text on console?
i am actually making a program that reads texts already printed over console so i want to capture that data again but i must not have a copy version of every thing behind the scenes i.e. in the background. I need to know how to capture data or amount of some data from console output? for example:
[console started]
It's imaginative console for the purpose of understanding.
I will make a very impressive program which will wow! you and to my instructor. |
[/console ended]
Now i have no copy of any data printed on console/command prompt or whatever you say it. My question is how can i copy following strings from console?
1) It's imaginative console for the purpose of understanding.
2) It's imaginative console for the purpose of understanding.
I will make a very impressive program which will wow! you and to my instructor.
3) very impressive program
4) understanding.
I will make
NOTE: Small bold '|' is my most recent cursor position on cmd.
Moreover in case you need about my IDE, i am using : Windows 7 Ultimate Service Pack 1. Microsoft Visual Studio 2013 Ultimate. Architecture 64bit.
I am having a problem with my c++ code. I am attempting to clear the text off of the command prompt screen in a text based game program. I put a restart option using a goto in my program. How would I be able to clear all previously displayed text.
I have created a MFC dialog based application. Now I want to implement such a functionailty that I will be closing my application through command prompt. And while closing of my application the ExitInstance() method of my application should get called. What is the command which I should put in the command prompt to close my application in such a way.
How can I send information and receive from external command prompt from my program??. I want to run an external command prompt, a code that's is not mine, to send information to this command prompt, then make my program hit enter at the command prompt and then receive back information from the command prompt.
I am making an application that processes multiple files (typically > 500) through a command prompt call. The way I start the command prompt app is by looping using a call to CreateProcess for each file that is to be processed. It works fine, except that I somehow loose 'connection' to my app so that
1: Windows says that the app. is 'Not Responding' 2: The Cprogress bar in my app is not updated before all files have been processed, even though there is a CreateProcess call and a Cprogress.StepIt() from the app for each file that needs processing.
I somehow suspect that the CPU gets swamped... I do not want that Windows starts to say that my app is 'not responding' and I want my Cprogress dialog bar to update according to the number of files that are progressed through.
I wonder if multithreading is the OK way to go instead of just kicking of series of CreateProcess calls? Maybe my CreateProcess is not ending correctly? It seems as if my app is 'not regaining control' before very late. The app never crashes though.
My CreateProcess code is listed below, maybe there can be a problem with it, or maybe I should do things in a different way? My app basicaly works as it never crashes, but with above mentioned problems it is NOT a pro solution...
void CMultiFilerDlg::ProcessFile(CString pdfFile) { int i=0; DWORD ProcID; // Open file in text mode: STARTUPINFO si; PROCESS_INFORMATION pi; char cmdArgs[2052];
I am trying to write a program to get user's input but only accepts alphabetic characters, nothing else and I want it to ask the user to enter a valid word until they have finally entered a valid one. I have the following code for it but it does not work properly.
void CheckBound (char word1[], int SIZE1) { int i; int w1[SIZE4]= {0}; int found; for (i=0;i<strlen(word1);i++) {
#include <iostream> #include <limits> int getInt() { int x = 0; while(!(cin >> x))
[Code] ....
But this function prompts the user to only input integer values. I was thinking if I could maybe try tweaking with this one so that the user could only enter letters..no luck though. So how can I have the user input letters only?
I need to create a program that will prompt the user for an input, then it will save their input to a file and then it will prompt the user to input "Open" and then the file containing their first input, will open up and show their input.
I am having problems printing "->" on the beginning of each line, im trying to do it as a loop and ending it when the user types "q". also i would like to know how to ignore text from the user when the input begings with a specific character. heres what ive done so far, and not currrently working as expected.
Code: #include <stdio.h> int main (void) { char prompt; printf("~~~ FRACTION CALCULATOR ~~~
I'm having a problem with the two while statements in my UDF.
- 1. It will run both while loops twice...?
- 2. It now goes into a continuous loop.
- 3. When it did work, it would only return 1 value to the main()...?
#include <iostream> // for use of "cin" & "cout", endl... #include <iomanip> // for formatting setw function #include <cmath> // for the general math computations #include <string> // for creating descriptive strings #include <sstream> // used to convert a string to an integer //user defined function int userValue (int);
I am studying about recursion by myself and i want to make a recursive function that prompts the user to input the base and exponent and generate the final answer .
#include<iostream> using namespace std; int recursive(int x, int y); int main() { /*int total=1; int y, x;
