I would like to implements something in my code that clears the value of my variables when the user closes the console. How to do that or the program clears the values automatically?
View 3 RepliesI'm trying to make a simple program that accepts user input, simple stuff. When the user (me) enters a number to be sent to the console and i press enter so it accepts the data, it closes the command prompt and thus ending the program. I just need to find a key that i can use to continue but doesn't close cmd.
View 5 Replies View RelatedIs it possible to write a program such that it will automatically execute the function in queue base on their priority even if user programmed it randomly?
Code:
function1(){ very_important; }
function2(){ important; }
function3(){ less_important; }
int main() { // Programmed by user
function3;
function1;
function2;
//Output: Program will execute function1, 2 and lastly 3.
}
For easier debugging, I would like to execute an own (predefined) function while beeing in a breakpoint (e.g. print some variables to a file).
Does there exists such a feature?
e.g.
- run program to a breakpoint
- a) press a keyboard-function-key (which calls that predefined function)
- b) or hover with cursor over a variable (and modify somehow the routine which shows its content on the screen)?
I have simple LCd_call function . I am calling this function from main . I wanted to call this function once. problem i am facing here, When lcd_call function being called. It enter the cases but instead of staying paricular case it coming back and starting case 1 iteslf . for every 6s it change the case to 1:
View 2 Replies View RelatedI know how to use functions pointers in C and C++ and I know if you have something like
char buf[] = {
0x48, 0xb8, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x48, 0xbf, 0x02, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0f, 0x05
};
((void (*) (void))buf)();
That this will execute those binary instructions in hexadecimal notation BUT WHY? I don't get why that works since that's an array of data not a function?
I wish to add the item 'Website' to an MFC Dialog app System Menu so that it can activate the following method:
Code:
void CMyDlg::OnWebpage()
{
ShellExecute( NULL, NULL, _T("[URL]..."), NULL, NULL, 0 );
}// OnWebpage()
I have tried this:
Code:
#define IDM_WEBSITE (WM_USER + 101)
//..
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
pSysMenu->AppendMenuW(MF_STRING, IDM_WEBSITE, _T("Website"));
}
[Code]...
The code compiles without error but and the 'website' item appears on the System Menu but it doesnt do anything.
I've inspected the following but don't really understand how it works and it seems to me there should be a simpler way to accomplish my end.
Modifying the System Menu By John Simmons 26 Jan 2007 [URL]....
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've recently downloaded c++ ide for windows 8(dos boxed version).
Every time i try to compile or run any program. It simply closes down?
Im new to debugging but it says the problem is on line 97 which is the verb menu function being called in the first switch statement case 0:
verb menu is one of the sub menus i want ,and it loads but then it crashes ...
#include <iostream>
#include <string>
#include "spanishverbs.h"
#include <windows.h>
#include <cmath>
#include <cstdlib>
using namespace std;
void nounmenu();
[Code] ....
I made a basic console calculator in C++ using the Code::Blocks IDE and using the GNU GCC compiler. The problem in my code is my void function called 'operate' is getting ignored by not showing up in the console. After the first if statement I added a user input by saying Y for yes or N for no. Another if statement inside the first one shows if you type either 'Y' or 'y' it will execute the 'operate' function which will restart the calculator by having the same selection menu as in the int main function. When I call the function it does not show up in the console but just ends the program.
Here is my code:
#include <iostream>
#include <cstdlib>
#include <string>
using namespace std;
int input,input2, numAdd, numAdd2, numSub, numSub2, numMult, numMult2, numDiv, numDiv2;
void operate() {
cout << "Select a operator." << endl;
[code].....
So I learned how to make a basic for loop and I decided to try my best to make an infinite one. Every time I run it, it doesn't say anything and just closes. Visual Studio doesn't say there's anything wrong with my code.
Here's the code
#include <iostream>
#include <conio.h>
using namespace std;
int main () {
int d = 9;
for(int k = 10; k < d; k = k +1) {
cout << "For loop value = " << k << endl;
getch();
} }
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
[Code]....
when running the program it closses after the switch.
The following not only closes the MDI children, but also the form I set to be an MDI container.
private void close()
{
Form[] childArray = this.MdiChildren;
foreach (Form childForm in childArray)
{
childForm.Hide();
}
}
Background: I'm making a small game using CodeBlocks and SDL. All of the code resides in a class named Game - the only thing running in Main is the creation of the Game object and the class function execute(). So far, I've made a Start Menu with three clickable buttons. I'm in the midst of making one of the buttons - Load Game - change the game screen to the Load Game menu. Basically, when the user clicks the button, the image on screen changes according to the button they click.
Issue: After successfully making the Load Game button change the image on the screen, I found that the SDL window mysteriously closes out several seconds after the image change. What is causing this - the window stays on perfectly fine until the background image is changed and the only way to break the loop is for the player to click the x on the window. I've gone over the code several times and haven't found anything that might be the cause.
Code:
Game.h file
#ifndef GAME_H
#define GAME_H
#include "SDL/SDL.h"
#include "SDL/SDL_ttf.h"
#include <iostream>
#include <cstdlib>
[Code] ....
Output:
- Window with an Start Menu image and a button with the words "Load Game".
- If user clicks the X on the window, the window closes.
- If user clicks "Load Game" button, Start Menu image changes to Load Game image. After about seven seconds, the window automatically closes out. This isn't supposed to happen.
Code:
Real x = (arg.state.X.abs - mViewport->getActualLeft())/float(mViewport->getActualWidth());
Real y = (arg.state.Y.abs - mViewport->getActualTop())/float(mViewport->getActualHeight());
_trace("%f %f
", x,y);
Code:
#include <Windows.h>
#ifdef _DEBUG
bool _trace(TCHAR *format, ...) {
TCHAR buffer[1000];
[Code] .....
Results:
f f
f f
f f
f f
How to display the actual values in the console?
Program compiles and runs no problem but closes right away when finished.
Heres the code:
Code: #include <iostream>
#include <cmath>
using namespace std;
double calcDistance(double,double, double, double);
float calcKilometers(float, const float) ;
[Code] ....
I'm writing a code that's suppose to do a payroll for my intro cs class. At first it was working fine until I had to add the part that made sure a user couldn't enter a wage value below $6.00 and now it stops the loop right after that part for some reason.
#include <iostream>
#include <iomanip>
using namespace std;
int main() {
int const HR = 7;
[Code] ....
I seem to be having a logical error but can not find the sources.
#include <iostream>
using namespace std;
int main() {
int student = 0;
int adult = 0;
[Code] ....
I compiled/built a code I had and made an executed file but when i click on it the CMD closes instantly. Is there anyway to keep this open?
View 10 Replies View Relatedi need to create an small windows form, with some buttons, and then those buttons will "exectute" an action on a remote webserver.
Im searching with http requestings and didn't find nothing useful for what i need.
The basic thing is that i just need to press "EXECUTE" and then c# will press one link in the Webserver. I do not need any feedback from the page. I just need that C# execute a link like localhost/startbackup.php then the actions from the startbackup.php will run.
I do not need any information regarding if the page was successful executed or not, or even if it opens one window. Nothing.
I'm wondering whether it's possible to implement MPI to execute a process in parallel from deep within a C++ solution.
I've created a solution on VS2005 that links to several static libraries, and within one of these libraries there is a set series of tasks that require execution many times - they're independent so I'd like them to execute them using MPI if possible to speed up the run time.
The pseudo-code is:
Code:
for(i = 0; i < n; i++) // n is number of times to execute process {
PerformTask(data[i]); // perform the tasks required for each iteration of process
}
So, instead of conducting the tasks within PerformTask() in series n times, I want to split the array data between multiple processes such that they can each be allocated an even proportion of data to perform the tasks on. Pretty textbook reason for wanting MPI, right?
Now, I've read up and understood the basics of MPI implementation, but all the examples I've seen are called within the main() function of the program. But I need to do all this from within a static library, is this possible?
I've made some early attempts at implementing this, but get an error indicating the process wasn't initialised: "Error encounted before initializing MPICH", which I assumed would be due to trying to make the MPI calls outside of the main() function.
I'm new to C++ and am trying to create a program to solve the problem as described in this image: [URL] .....
Here's my code. It fails to execute the main part of the problem (years, population of A & B) but works well in recognizing errors (if PopA >PopB or if growth rate of PopA<PopB)
Code:
#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
int main() {
string city1, city2;
[Code] .....
I have a condition and I would like to instead change the condition so that it would execute the previous statements after else statement.
It seems hard to explain but I'll try my best to illustrate anyway
if (condition)
<statement1>
else
<statement2>
So I would like to change the condition so that
if (condition)
<statement2>
else
<statement1>
And the condition is
Code:
if(!lightStateAtNextLink || !bIsLightEnAtConnection && nLinkNext.IndexToAttachedNode() != pVeh->_.stAutopilot.m_dwNextNode || bIsLightEnAtConnection && nLinkNext.IndexToAttachedNode() == pVeh->_.stAutopilot.m_dwNextNode)
And I have changed that to this. Is this correct?
Code: if(lightStateAtNextLink && bIsLightEnAtConnection || nLinkNext.IndexToAttachedNode() == pVeh->_.stAutopilot.m_dwNextNode && !bIsLightEnAtConnection || nLinkNext.IndexToAttachedNode() != pVeh->_.stAutopilot.m_dwNextNode)
I'm working on a project that's got a lot of moving parts, from feedback from a position sensor to real-time video editing. The script that runs the sensor is in C++, and the API for the video editing software (vMIX) is executed with HTTP protocol. I'm hoping to use that C++ script to control the video software (as some of the editing is dependent on particular feedback from the sensor), and wanted to see how to execute a HTTP command from a C++ script.
View 3 Replies View RelatedI'm trying to create a program that will show what the 12th digit of a UPC code would be. However, once the user enters the first 11 digits the program doesn't execute the last call of printf. The program compiles with no issues.
Code:
#include<stdio.h>
int main() {
int o1, e2, o3, e4, o5, e6, o7, e8, o9, e10, o11, oddsum, evensum, twelve;
printf
[Code] .....