49,765 Topics
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| | [CODE]#include<stdio.h> void main(void) void change(void); int x=4,y; y=x; { printf("\n The value of x is = %f and the value of y is = %d",x,y); change(); printf("\n The value of x is = %d and the value of y is = %d ",x,y); } void change(void) { x=x+3; } [/CODE] …  |
| | I've been attempting to do a basic XOR encoder but I got this problem: Everytime the result of the XOR operation is 10, the app writes 0xA 0xD, and I can't avoid this. Code: [CODE] #include <iostream> #include <fstream> #include <stdio.h> using namespace std; char* readfile(char * filename,int* size){ int … |
| | Hi, I'm pretty new to C++ but have a lot of experience in Python. In python its pretty straight forward to make functions that both take arrays/vectors as input and return arrays/vectors. My thought here is to make a function to calculate the gravitational force between to bodies with mass … |
| | sir i created the strucutre. and i created the vector. i push the structue in the vector how to send the vector to the server . in the socket programming under windows. in c++  |
| | [B]What kind of windows version do i have?[/B] i need to know what version of Windows i have for costomer service from iTunes, but i dont know what version, Windows 7, Windows Vista or what, so how do i tell  |
 | Is there a GUI Builder for Code::Blocks, something like BOA for Python? Greetings, Emir  |
 | Hi, i am trying to make a BMI calulator and here is my code: [CODE]#include<iostream> #include<sstream> #include<fstream.h> using namespace std; int main (char argc) { double ff1; double ii1; double ww1; for(;;) { system("cls"); cout << "Enter feet." << endl; string f1; cin >> f1; stringstream(f1) >> ff1; if(ff1 >! … |
 | I'm not sure where this post fits, but after staggering here and there I Thought I would throw it here! I find difficult to make coordinates by hand (Not very good at x-y-z though I know the XY coordinate). Is there a tool that will allow you to draw let … |
| | Why does it always return true?! No matter what I do it says the bitmaps are the same.. I want it to tell the difference between the two bitmaps.. like if they look alike with a slight tolerance to make sure that it doesn't have to be a perfect match.. …  |
| | I'm trying to display rotating "HELLO!" in my program, but instead i get a just flashing "HELLO!" rather than rotating "HELLO!" which is mean to display 'H'1st, then 'E', then 'L' and so on in new line. Hope some master here can point out my mistake. [CODE] #include <iostream> #include … |
| | # include <iostream> using namespace std; int main() { cout << "By this program you can know about Whether a number is a or not" ; cout << "Enter a number less than 1000 :- "; int a,b,c,e,f,g,k ; cin >> a; if (a < 1000) b=a/10; k=b+2 ; c=a-(k*10); … |
| | Hi, this is my first attempt at actually making a game that is actually playable, instead of something boring that is just the same thing over and over. The problem that I am having is that when the function startGame(); is called, the program closes. There are no errors, because … |
| | I haven't really found anything on the topic other than its bad to cast, but I would assume there is a "proper" way to accomplish this. To illustrate: Class B and Class C both inherit from Class A. I have a function MyFunction(A obj); In MyFunction() I would check if … |
| | I have a homework question that instantiates 4 node pointers, *p, *q, *r, *t, and the first three have a number, 1, 2, and 3 respectively. I have to draw out (using 'blocks' and arrows) what the memory would look like when these lines of code occur: p->next = q; … |
| | Hi, I am using DEV-C++ and i am wondering how to declare variables in a windows project. I am trying to make a calculator and i need it to declare a variable a certain number when you press a button. I also need it to declare a char after you … |
| | hi : ) I wrote this code for count a specific word selected by user in an array but it have a logic error .. and also is there another way to write it without using pointer ? [ICODE] #include<iostream> using namespace std; int j,i=0; const int size=500; char array1[size],search[100],*cnt; …  |
| | Hi, I have a csv datafile with stock price data that I've read into a vector of structures that looks like this: 09/11/2009 9.30 open, high, low, close, volume 09/11/2009 9.31 o, h, l, c, volume and so on to 09/11/2009 16.14 o, h, l, c, volume //next day starts …  |
| | I'm having a problem on try again program.I checked the syntax and yet is still not working.am trying to make a program that will output the student's grade and when the program is finished it will ask whether to try again or not.If the input is y or Y, the … |
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| | Hi I am making a banking system in c++ but getting a problem I am not sharp in programmin if you can help then thanks [CODE]//*************************************************************** // HEADER FILE USED IN PROJECT //**************************************************************** #include<iostream> #include<conio.h> #include<stdio.h> #include<process.h> #include<fstream> #include<ctype.h> //*************************************************************** // CLASS USED IN PROJECT //**************************************************************** using namespace std; class … |
| | [CODE] #include <time.h> time_t whatTime(const char* month, const char* day, const char* year) { time_t rawTime; time(&rawTime); struct tm* convTime = localtime(&rawTime); std::cout << "Today is: " << ((convTime->tm_mon)+1) << "/" << convTime->tm_mday << "/" << convTime->tm_year << std::endl; } [/CODE] When using this code I get the output '7/27/111' … |
| | These days ,I am learning inheritance and dynamic binding. I could figure out what the code means. However, I can't see much point in setting such base classes So,I want to know why should we set up base classes and derived classes  |
| | Basically, I made a small calculator. It does the PEMDAS and factorials. Part of my code is here:[ICODE]#include "stdafx.h" #include "iostream" #include "stdio.h" #include "math.h" using namespace std; short MENU (void); void raiz (void); void suma (void); etc..... [/ICODE] [CODE]int main () { short OPC; OPC=MENU (); do { switch … |
| | i'm trying to add two fractions via a function and it works. the problem is that i have to print the fraction in the main( and i have absolutly no idea how to do that) other than that the program works fine. [CODE]#include<stdio.h> #include<conio.h> #include<iostream.h> int frac(int,int,int,int); void main() { … |
| | Hi, I am trying to change this program to compile in g++ compiler in terminal in linux. I have reached a point where I am stuck. I would really appreciate some help. I am getting the following errors: test@linux:~/signalgenerator> g++ -o audio audio_backup.cpp -lasound audio_backup.cpp: In function ‘int main(int, char**)’: … |
| | I have run into a unsolvable runtime error, I always get the message invalid floating point error, with the following C++ program. This program reads floats from a file(float.txt) 1.56 .98 5.78 Then sorts to put the largest float on top. But when I try to read this I get … |
 | My code for the calculator is: calculator.h [CODE]#ifndef CALCULATOR_H #define CALCULATOR_H #include <QWidget> #include <QGridLayout> #include <QLineEdit> #include <QLabel> #include <QPushButton> #include <QLCDNumber> #include <QString> #include <QMessageBox> #include <QErrorMessage> class Calculator : public QWidget { Q_OBJECT public: //constructor Calculator(); public slots: //function to add the two numbers that the user … |
| | I have to write a code that accepts 5 grades and sorts them from smallest to greatest using linked list.This is what I have so far using examples from the book. #include <iostream> using namespace std; struct List { int value; List *next; }; int main() { int num, num1,num2,num3,num4; … |
 | Hello, I'm trying to write a function for a DLL in c++ what would check if a website is online or not and return either a error or the status code returned from the server, is there are any clever people out there, your help would be awesome, thanks. i … |
| | Are there any O(n) algorithms to check if a 2d array is symmetric?  |
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