19,876 Topics
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| | I am trying to rebuild my code for my final project due in 2 hours... I am getting a stray \147 and 148 error, along with various other errors. What am I doing wrong???? I am not very good at this C++ stuff, so any help would be appreciated :) …  |
| | I have two declare of pointer: [code] Pointer *a,*b,*c; int i=5; *b=i; a=b; c=&b; [/code] at line (a=b) mean a will point to what b point (mean point to int i) at line (c=&b) mean c will have address of b, mean c will be pointer to pointer b. So, … |
| | Hi all, I am a newbie in C, and a bit curious with this "goto" statement. For instance, I create a simple code below [CODE] #include <stdio.h> int main () { int a; a = 1+1; if (a!=2) { goto error; } error: printf("error is here\n"); return 0; } [/CODE] … |
| | Hello I write program that can solve linear equations with LUP decomposition method.I know that my algorithm is true and every part of my program do what I want. when I call function lupDecomposition() inside the lupSolve() the program crash.This is my related code: [CODE] int makeUpperDiagonal(Matrix * src){ int … |
| | I have something that I don't know how to use the Pointer, this is my code: [CODE] struct node{ int data; struct node* next; } struct node* BuildWithLocalRef() { //give a list with: 1 2 3 4 5 //and your work is import this list in to Linked List with …  |
 | Hello I am very confused with how negative numbers are represented in binary form. They say it is done in 2s complement form. Now won't this 2s complement of a negative number clash with an actual +ve number having the same binary representation? And negation of a +ve number..... We … |
| | I have written this C code in which I'm declaring a variable inside switch body with initialializing it to 10.But when I'm running this code it is printing some garbage value. [CODE]#include <stdio.h> int main() { switch(2) { int x=10; case 1: printf("Case 1: %d\n",x); break; case 2: printf("Case 2: … |
| | Hi, I am trying to read a text file and tokenize the data and store in a character array. [code] #include<stdio.h> #include<stdlib.h> #include<string.h> //#include<file.h> int main(int argc , char *argv[]) { printf("No of arguments %d \n",argc); printf("Argument no 1 is %s \n" ,argv[1]); FILE *fp; char buffer[11]; char *bp; char …  |
 | Hi All I have a simple quick question: does anyone have any recommendations on a graphing with C? I've done some graphing in the past with Python using Matplotlib and rather than re-invent the wheel I was hoping that someone might be able to point me in the right direction … |
| | Here's a code to find out if the number is palindrome or not. [CODE] #include <stdio.h> int main() { int num,chknum1,chknum2=0,i,rmndr;/*here rmndr is remainder after mod,chknum is reversed num*/ printf("enter the number"); scanf("%d",&num); chknum1=num;/*saving num,since it is manipulated*/ for(i=0;i<=sizeof(chknum1);i++) { rmndr=num%10; num=num/10; chknum2=chknum2*10+rmndr; } printf("chknum1 %d,chknum2 %d",chknum1,chknum2); //if(chknum1=chknum2) //printf("Is palindrome"); …  |
| | I am having an issue with my decryption out.txt file. I have gotten the program to open the input file in note pad and encrypt. to an output text file but when I try to decryp to an out text file it doesn't do anything. I figure I am missing … |
 | Hey guys, I just wanted to ask why this error kept on showing up, i looked at everything, but i couldn't find anything, so maybe one of your eyes will catch something. Here's my code: [CODE]#include <iostream> #include <time.h> #include <string> using namespace std; float FarenheitToCelsius (float); int main() { …  |
| | Hello, I want to know how to compare a string value which is input by the user. The following code gives an error saying "Result of comparison against string literal is unspecified (use strncmp instead)". [CODE] while(valid == 0) { printf("Yes-No-Question\n"); scanf("%s", &yesno); valid = 1; if(yesno != "yes" || … |
| | Hi guys, This might be a long shot but its worth a go....so im using LabWindows CVI, a ANSI C software development environment for "test and measurement, data acquisition, instrument control, and scientific analysis" application. Now the problem I have is running a .exe application from a button click event: … |
| | Hello, I am working on a simple shell and I need to add the ability to handle program names and parameters that contain white space: everything in between two double quote (") characters needs to be treated as one word! E.g. "./hello world" should be treated as the name of … |
| | I have a program which prints (by printf) to the stdout some data and also calls to function *foo* which also prints to the stdout some data [the way (implementation) of how printing is done from foo is unknown and I can`t see the code of foo]. I have to … |
| | I have been experiencing problems in using the gets() command in C. Whenever I use it twice followed by scanf for eg: [code] char name[20],add[20]; printf("Enter name : "); gets(name); printf("Enter address :"); gets(add); printf("Enter age :"); scanf("%d",age); [/code] Here it skips name.(doesnot take input of name!) It doesnot input … |
| | Hi All I'm learning C at the moment using Code::Blocks running on Windows 7 (64-bit) and I'm having a bit of a problem with code that I've compiled. This code works and compiles just fine: [CODE]#include <stdio.h> int main() { char cards[] = "JQK"; char a_card = cards[2]; /* "K" … |
 | I'm trying to determine then print the country of origin of a product based on its bar-code. I have isolated that part of the bar-code and stored it as countryCode, now what i am trying to do is determine its country then store the country name as a string so … |
| | Why is this not working [CODE]//Character Manipulation #include <stdio.h> int main() { int x; //for loops int counter=0; //for input char character; char sentence[20]; printf("Press 1 to use getchar \n Press 2 to use gets \n Press 3 to use sscan \n "); scanf("%d",&x); switch(x) { case 1: printf("Enter something"); … |
| | ahmm. let me ask, how do you make a program that saves a data that has been inputted by the user? and when you go back to that same menu, youll be able to review the datas you inputted .thanks alot for thos who'll reply. ![Member Avatar for [Prototype]](https://static.daniweb.com/avatars/orig-avatars/avatar913340.gif){kind=avatar} |
| | Hello everyone! I'm new to this forum and I wanted to know if there's a book to learn C++ on windows form! If so then please give it's name to me! Thank you!  |
| | What code will i use in c++, if i input 6 numbers and then i will get the 3rd, 5th, and 6th number? Example: Enter number :123456 3rd, 5th and 6th number : 356 |
| | Hey guys... I have this code and i need to make the temperature part work with a function but i don't know how. So Any help is appreciated. Thanks *edit* Also, if there is any way to make this simpler, then please tell. [CODE] #include <iostream> #include <time.h> #include <string> … |
 | hi, i have this code: [CODE]#include<iostream> #include<sstream> #include<string> using namespace std; int main (char argc) { string n1 = "141+246+3+64"; int n2; int pos = -1; char toFind = '+'; do { pos = n1.find(toFind, pos+1); if(pos != -1) { stringstream(n1) >> n2; cout << n2 << endl; cout << … |
 | People did any of you come across good tutorials on hash tables??? What I got from schools is useless and teacher is not able to explain properly. Thanx for help |
| | What do you call those statements highlighted in red? [CODE] using System; using System.Collections.Generic; using System.Text; namespace ConsoleApplication1 { class Program {[COLOR="Red"] static void Main()[/COLOR] { int choice; Console.WriteLine("Please select below"); Console.WriteLine(); Console.WriteLine("1. Area of a Circle"); Console.WriteLine("2. Area of a Rectangle"); Console.WriteLine("3. Area of a Cylinder"); Console.WriteLine(); choice = …  |
 | Hello, im writing a C program that needs to get a value from my database and put it into a temporary table. so far i can get the value from the database and insert it into my temp table. if i fill in the right value in the where clause … |
| | hi, I am trying to make a calculator and I need the stringstream function to convert a a certain part of a string.[CODE]string n1 = "243+79"; int n2 = 0; stringstream(n1[0-2]) >> n2; // this converts the 243 from n1 to an int[/CODE] Any solutions? |
| | Is it even possible to create a singly linked list using a function outside of main and then access it once you leave the function? pseudo: [CODE]#include //whatever needs to be included function{ \\create and link lists in this function } main{ funtion()//call function to create lists and link properly … |
| | I'm trying to read user input and store it as a string including the whitespace. I did a search for a solution and was pointed to fgets() or scanf(%[^\n], str). But both these solutions give me an error. This is what I have: [CODE] scanf("%d", &input); if (input == 1){ … |
| | Hi guys, I need to make a c++ project for my camp and i'm stumped and don't know what to do. I only know the very basics and i don't want to make any card games like black jack or RPG's cause people are already doing that in my camp, … |
| | so here is my code -- whenever i try to compile it says SYNTAX error [CODE] #include <stdio.h> long FindMaximum(long* numbers, int count) { long max = numbers[0]; int i; for(i = 0; i< count; i++) { if (numbers[i] > max) { max = numbers[i]; } } return max; } …  |
| | I have to open and read a file whos file name is provided through a command line argument. Right now, I am using the following method. My main: [CODE]#include <stdio.h> #include <string.h> #include <ctype.h> #include <stdlib.h> #include "functions.h" int main(int argc, char *argv[]) { int count, string_size; int other = …  |
| | Hi Guys, I'm kinda new at this..but I need help cause I keep on getting this error and I don't know what's wrong with it. So Please Help Me. Thanks. Here's My Code: [CODE]#include <iostream> using namespace std; int addition (int,int,int,int,int, int); int addition (int a, int b, int j, … |
| | :D Hello everyone, I am making a program where the user types in a string and then the string is saved to the clipboard, but I am not quite sure how. I have had a look at [url]http://www.cplusplus.com/forum/beginner/33250/[/url] but I am not quite sure how to implement this. I would … |
| | Hi, Borland C++ 5.5 isn't working.:@ Test file [B]Hello.c [/B][CODE]#include <stdio.h> int main(void) { printf("Hello world!\n"); return 0; }[/CODE] [B]Output :[/B] C:\Users\Administrator\Documents>bcc32 Hello.c Borland C++ 5.5.1 for Win32 Copyright (c) 1993, 2000 Borland Hello.c: Error E2209 Hello.c 1: Unable to open include file 'stdio.h' Warning W8065 Hello.c 5: Call to …  |
| | [CODE=c]# include<stdio.h> # include<string.h> # include<stdlib.h> int main(int argc, char **argv){ // Declare Variables char barcode[50]; int count; long long intBarcode; long countryCode; int dig0, dig1, dig2, dig3, dig4, dig5; int dig6, dig7, dig8, dig9, dig10, dig11; long long num; long rem, sum; int checksum; long long manufac, product, language, …  |
| | I want let exe detect new version of exe. Then it will update itself. my program is develop in Microsoft Visual Studio 2008 C# windows form application.  |
| | does anybody know library for c/c++ to catch presses of keys like ctrl+shift+foo or fn+f7 etc. ? |
| | [B]Will some one please help with the topological sort problem. What am I doing wrong? Thanks in advance for your help!! [/B][code=c] #include <stdio.h> #include <limits.h> class Vertex { public char label; public Vertex(char lab) { label = lab; } } public class Graphs { private final int MAX_VERTS = …  |
| | :) Hello, I am making a C++ console application where the user can encrypt and decrypt text. So far, I have successfully made the encryption part, but am not quite sure how to make the decryption part. For example: abcb -> 128.70.88.70. but I can't make it go back to … |
| | As we learn all, C dont supprot Inheretic, Polymorphism, Function Overloading... And Few Other Things... My Question is: What is this one? [URL=http://imageshack.us/photo/my-images/705/wico.png/][IMG]http://img705.imageshack.us/img705/5661/wico.png[/IMG][/URL] [code] using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace Example { public partial class WForm : Form { …  |
| | Considering the following line of code: [code]int *ip;[/code] Is "ip is a pointer to int" (the type) or is "ip a pointer to an int" (a particular variable of type int)? Thanks. |
| | Write a C program to find the factorial of a number using do while loop? |
| | I found some implementation by macro with the help of macro I may write something like [code] #define DEFINE_LIST(type) \ typedef struct list_node_##type { \ struct list_node_##type *next; \ type data; \ } int main() { DEFINE_LIST(int); // defines struct list_node_int DEFINE_LIST(double); // defines struct list_node_double IMPLEMENT_LIST_INSERT(int); // defines list_int_insert … |
| | Please help me, I already made a programm it run good if i only input a first name but if i input first and last name it did'nt work properly here is the program i made and the output of the program PROGRAM [CODE]#include <stdio.h> #include <conio.h> #include<math.h> char a,name; … |
| | Im having some problems identifying where my error is. I've read through the post on this topic and applied the responses to my code but it's still giving me a warning. I am trying to use an array to compute the average of 10 numbers. [CODE]#include <iostream> using namespace std; … |
| | I just need to have 3 basic problem statements on c programming that is related to the field computer engineering, computer science or electronics and communications engineering. Only 3, and i can sleep.. of course after coding. :) THANK YOU! ^_^ >:D< |
| | PLEASE HELP I NEED TO PASS THIS HOMEWORK AND I ONLY HAVE 16 HRS BEFORE I SUBMIT IT AND I ALSO HAVE ANOTHER ASSIGNMENT ON MY ENGINEERING MATH, CALCULUS AND SOLID MENSURATION I DON'T HAVE ENOUGH TIME TO FINISH THIS PROGRAM PLS SOMEONE HELP ME WITH THIS THANKS IN ADVANCE … |
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