C++ :: Variables Declared - How Many Times Loop Executes

Jan 27, 2015

Assume all variable are declared correctly, the following for loop executes how many times?

for (i = 0; i <= 20; i++)
cout << I;

I think 20 but am not sure.

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C/C++ :: Finding Variables Declared In Programs

May 6, 2014

Is there any way to find the variables declared or defined in a c program and print those variables?? E.g. this is the code

#include<stdio.h>
int main() {
int a, b, c;
printf("Enter two numbers to add");
scanf("%d%d",&a,&B)/>;
c = a + b;
printf("Sum of entered numbers = %d",c);
return 0;
}

I want to print all the variables been used. I used (gdb) info locals but its not giving the proper ouput.

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C++ :: Sorting Program That Uses Variables From Another Class - List Not Declared In This Scope

May 13, 2014

I've got this sorting program that uses variables from another class but I'm not sure why its not recognizing it. I'm getting an error length and list not declared in this scope.

#include <iostream>
#include "arrayListType.h"
using namespace std;
template<class elemType>
class orderedArrayListType: public arrayListType<elemType> {

[Code] ....

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C++ :: Loop A Set Number Of Times

Oct 29, 2013

I have been trying to make a program that asks for username and password, and if it is wrong it will loop back to the top. But i only want it to loop a set number of times, how can i do this? This is my code so far

string username;
string password;
cout << "Enter username: ";
getline(cin, username, '

[Code] ....

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C++ :: Create A Loop That Repeat Itself Many Times A Second?

Aug 6, 2013

I create a loop that would repeat itself many times a second? Trying to do extremely basic graphics with a grid and system("cls") every time I run a command, but it still looks very jumpy. I realize system calls are evil. Any way to get rid of this too.

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C++ :: Iterative Loop Repeats More Times Than Expected

Nov 28, 2014

I tried my best but I can't figure out the problem. At the last part of "createArray", I output the final array created. I mean it to repeat once but then it repeat more times than I expect. createArray is an iterative function. If it repeats 3 times, than at last the array created which fulfil the criterion would be printed out 3+1 times.

I am trying to create an array with 3 numbers 5 times, resulting in a 2D array. The 3 numbers in a array are picked from 0 - 5. I enter createArray(5,3,5). Then these 5 arrays are compared with each other to see if there are repetitions. If there are, the whole process begins again, 5 arrays with 3 numbers each will be picked again and compared with each other. If there are no repetitions at last, there 5 arrays would be printed out.

void deleteArray(int** array){
delete[] array;
}
int** createArray(int simu_times, int randomrun,int numberofrun){
vector<Int_t>fChosenRun;
int** Array = new int*[simu_times];

[Code] ....

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C :: When Try To Iterate Two Times Or More - Program Gets Stuck In Infinite Loop

Mar 18, 2014

I'm having trouble getting my loop to work correctly. If I iterate the for loop once it works as expected and displays proper output. When I try to iterate two times or more the program gets stuck in an infinite loop.

testData8.dat:

Code:
12 9
13 756

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C/C++ :: For Loop To Print Given Character Number Of Times Specified By Integer

Feb 11, 2014

The function uses a "for" loop to print the given character the number of times specified by the integer.

How can I make a for loop to do that?

So.. my code looks like this:

// cpp : Defines the entry point for the console application
//
#include "stdafx.h"
#include <iostream>
using namespace std;
void printMyInteger(int myInteger, char myChar) {

[Code] ....

So.. here is my error:

Error1error C2143: syntax error : missing ';' before ')'d:workspaceuniversity ools for games and animationworkshopsweek 6week 6week 6week 6.cpp101Week 6
Error2error C2143: syntax error : missing ';' before ')'d:workspaceuniversity ools for games and animationworkshopsweek 6week 6week 6week 6.cpp101Week 6
3IntelliSense: expected an expressiond:workspaceuniversity ools for games and animationworkshopsweek 6week 6week 6week 6.cpp107Week 6

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C# :: Unable To Implicit Convert Type Int To String Though Declared Variables As String

Mar 26, 2014

Ok, so I'm writing this code and when I build it keeps saying cannot implicitely convert type int to string even though I declared my variables as string. Why is it giving me this error?

private static string Repair()
{
string result="";
string beep;
string spin;
Console.WriteLine("Does your computer beep on startup?:(y,n)");

[Code]...

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C++ :: For Loop - Code Puts Out Switch Statement 5 Times With Random Number

Jan 26, 2014

I am writing for loop with a switch so that scores can be inputted in by a judge. The issue that I am running into is that I will put out an the text then the test happens and the code puts out the switch statement 5 times with random number. Here is what I have written.

Code:
int main() {
int diver;
int option;
int Judge;
cout << "Enter Divers Name:";

[Code] ....

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C++ :: Program That Executes A Command Between Computers

Jul 28, 2014

I'm currently making something with C++ for a computer at my house. I have a program in which I let run minimized and hidden on my home computer which will save any application that is opened. It will log it so I know if my kids are on my office computer (they shouldn't be.).

I'm curious as to if I can make the program linked to a program I make on my work computer (at my workplace) and execute a command. I'm interested in making it so I can always be connected from the Workplace app to the Home Office App.

My idea for the program is to have a sort of administrative way of shutting the computer down or locking it remotely. If I see they are using the PC in my office, I want to be able to simply type a phrase and shut the computer off or lock them out.

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C++ :: Why Does GetY Have To Be Declared After Struct Y Is Declared

Jan 30, 2013

struct x
{
y *GetY(); //error: what is "y"?
struct y
{
};
};

Why does GetY have to be declared after struct y is declared? I thought order of class members in C++ did not matter? Does it have to do with the way parsing is done?

EDIT: It also doesn't work if I typename x::y *GetY();, which makes even less sense to me.

EDIT: It works if I forward declare, but this goes against everything I know about C++ classes...

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C/C++ :: Array With Two Variables And Loop

Feb 18, 2014

I have two variables t and x in an array that alternate. I want to add two t's and find the average and then do the same for the x's. After that, I want to find the slope of x -> t. My problem is that I specify the n for t, but since it's local I can;t use it for the slope. Here's my code so far:

#include <iostream>
using namespace std;
int main() {
double PA [8] = {0.0001234, 1.0005434, 0.0005678, 1.0023423, 0.00063452, 1.0001546, 0.00074321, 1.00017654};

[Code] ....

And, can I actually use the n2 as an index, or will the processor not understand that?

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C :: Cannot Get Out Of Loop - Stuck With Updating Variables

Jul 18, 2013

Code:
#include<stdlib.h>#include<stdio.h>
#include<unistd.h>
#include<math.h>
int main(void)
{
double N, NG, LG, epsilon, root; // setting all variables to type double

[Code] .....

The goal is to create a program to calculate the square root of a number provided by the user to an error tolerance 0.005

Looking around i fond the Code: fabs(NG - LG) < epsilon); section that was very similar to what i was using, but if this is better im down for that.

My issue, from what i can see, is the updating of the values of LG. if the test for error tolerance fails then LG needs to take on the value of the results of NG.

Now I am not 100% that is the point of failure due to the fact the script does calculate the root properly, but it never exits the program once it reaches the tolerance level.

Code: imac:ENG-3211 user$ ./hw_4_1

Please enter the number you wish to find the square root: 4

4.00 2.500
4.00 2.050
4.00 2.001
4.00 2.000
4.00 2.000
4.00 2.000
4.00 2.000
4.00 2.000
4.00 2.000

And it continues forever until i manually break the program even though the answer was found, in this example, on the 4th loop.

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Visual C++ :: Re-input Variables After Loop Ended

Oct 18, 2014

I just started programming and want to make the game cows and bulls. The problem is that after the loop has ended and both vectors are not the same I want the user to 're-input' the starting variables a,b,c&d but I don't know how to.

Code:
#include "std_lib_facilities.h"
int comparison(int a, int b, int c, int d)
{
vector<int>bc={ 1, 2, 4, 9 };

[Code].....

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C++ ::  Vertical Histogram - Variables In For Loop To Print Stars

Dec 6, 2013

I want to create a vertical histogram in my code. I already made it go vertical but not the way I want it.

Example:
I want it like this:

Range1 Range2 Range3 Range4

And asterisks under each one, depending on the user input. (My code is below and doing it on here doesn't make it come out correctly)

But what I've managed to do is this:

Range1
*
*
*

Range2
*
*

Range3
*
*
*
*

Range4
*
*

Which I don't want. I want everything else to stay pretty much the same since I can only use some features such as Arrays and really basic functions.

Here is my code: (Worked fine last time I used it and I am doing it on Visual Studio 2010 (at uni) and 2013 (on my laptop)).

#include <iostream> //Start of code
using namespace std;
int MarkValueInput; //Mark entered by user
//Counter variables for ranges in While Loop
int counterlow; //Counter for low range
int countermidlow; //Counter for mid-low range
int countermidhigh; //Counter for mid-high range
int counterhigh; //Counter for high range

[Code] .....

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C++ :: Loop Program To Go Back Without Losing Values Of Variables?

Mar 30, 2014

I know that returning to main() is not a good idea but how will I loop the program to go back to the position selection when the voter is done voting for the last position.

when I run the program it seems fine. getting the votes from President to PRO Position is fine. The problem is how will the next voter vote without losing the vote (tally) of the previous voter?

FLOW:
SELECT POSITION (a-e) ---> SELECT A CANDIDATE (a-c) ---> (this goes on until the position of PRO) ---> ( then go back to the POSITION SELECTION)

After every vote there is a case statement for which I can choose to vote for the next position, quit, or show results (and after showing the results it will go to the next position to vote)....

#include<iostream>
#include<string>
#include <conio.h>
using namespace std;
int pca=0,pcb=0,pcc=0,ptv=0;

[Code] .....

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C# :: Upper Pyramid Is Working Fine But Lower Pyramid Executes Infinite

Feb 10, 2015

I need to print like below pattern.

1
121
12321
1234321
123454321
1234321
12321
121
1

I got the upper pattern but below pattern is not working it executes infinte loop, how to reslove this.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ro {
class ro {
static void Main(string[] args) {
int numberoflayer = 5, Space, Number;

[Code] ....

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C++ :: Memory And Int Not Being Declared

Mar 19, 2013

I had a quick question regarding a program I am trying to complete. I have the basics worked out, and everything seems to be done, but I am running into two issues.

1= The program keeps telling me "Run-Time Check Failure #3 - The variable 'order' is being used without being initialized."
and
2= When I reach my output screen I receive "Unhandled exception at 0x7751c41f in CISC 192 Project 3.exe: Microsoft C++ exception: std:Out_of_range at memory location 0x002eefb8.."

While the first one isn't necessarily a deal breaker the second one definitely is.

Code:
// Bookstore Project 3.cpp : Defines the entry point for the console application.
// Declarations
#include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <cstdlib>
#include <string>
#include <istream>

[Code] ....

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C++ :: Swap Is Not Declared?

Jun 15, 2013

#include <iostream>
#include <conio.h>
using namespace std;

[Code]....

appears that error on line 25 & 30 where swap1 & swap2 is not declared in this scope.

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C++ :: Declared By Function

Aug 20, 2013

MCLoad.h - MCLoad.cpp
bool MCLoad::Load(SDL_Surface* Name, std::string File){
Name = NULL;
Name = SDL_LoadBMP(File.c_str());
if(Name == NULL){return false;}
else{return true;

[code].....

compiler gives me the error bg was not declared in this scope. i googled it.

in MCInit #include <SDL/SDL.h> #include "MCLoad.h"
in MCLoad #include <SDL/SDL.h> #include <string>
in MCClean #include <SDL/SDL.h> #include "MC.h"

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C/C++ :: String Not Being Declared

Aug 18, 2014

I'm setting the Arduino to send data from it's analog pins through to my PC, but to keep it easier to manage, I'm trying to turn the analog reading into a character string, so instead of sending just the value, it instead sends "Pin 1: 345" for example, where 1 is the number of the analog pin in use, and 345 is the reading from that pin.

In my code below, the problem is getting my string variable to be recognized. When I try to verify the code, the error message I get reads "'string' does not name a type" yet when I compare it to other string variable examples on the internet, I can see no difference between mine and the ones online.

I've tried having the declaration in the loop, outside of the loop, and now at the start with the other declarations.

#include <string>
using namespace std;
string outText;
void setup() {
Serial.begin(9600);

[Code] .....

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C++ :: Fin Undeclared Identifier But Is Declared

Apr 8, 2013

Program is not finished as I can't get passed read_data

Error:
"error C2065: 'fin' : undeclared identifier
error C2228: left of '.open' must have class/struct/union type is ''unknown-type''

#include "stdafx.h"
#include <iostream> // for streams
#include <iomanip> // for setw()
#include <fstream> // for files
#include <cstdlib> // for exit
using namespace std;
void read_data(int A[], int size)

[Code] .....

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C++ :: Variable Not Being Declared Before Initializing - But It Is?

Mar 31, 2014

I'm working on this program, and when i run it for 'p', 'P', or for a incorrect service code a error message pops up saying that "totalCost is being used without being initialized". I don't want to change it to switches, case, and breaks now because I've come too far to change it all. I have that variable right here just below.

#include <iomanip>
#include <iostream>
using namespace std;
int main() {
int acctCode;
double nightCost;
double totalCost;

[Code] ....

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C++ :: (X) Not Declared In This Scope Error

Oct 29, 2014

main.cpp

#include <iostream>
#include "sushi.h"
using namespace std;
int main()
{
do {
......sushi go;
......string x; <----------------------------Declared x here
......cout << "wanna use a banana?" << endl;

[Code ....

Error reads: 'x' was not declared in this scope.

How do I fix this?

P.S The sushi class does not matter, that is all perfect. Also, the dots are to represent my tabbing to make it easier to understand.

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C/C++ :: Rename Not Declared In This Scope

Jan 10, 2015

For some reason my compiler says "rename not declared in this scope" .... Isn't it declared in iostream? Or is rename only for C not C++? And if it is only for C how do I rename a file in C++ then?

#include <iostream>
#include <cstdlib>
using namespace std;
int main(int argc, char* argv[]){
char oldname[] = "RomeTW.exe";

[Code] .....

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