19,876 Topics
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| | I just read in K&R that a function, even if not defined as void, need not return a value. To test I wrote a quick power function and I'm getting reproducible yet unexpected behaviour: [code]✈demios:cliC$ cat power.c #include <stdio.h> int power(int x, int y); int main() { printf("%d\n", power(2,5)); return …  |
 | I was trying to revise my linked list and implement it in C to check if there is a difference in performance... just as a sort of weird hobby.. In the absence of templates I'm trying to figure out how to pass a type as a parameter for this purpose. … |
| | Hello all, I have put together an inventory program and having problems getting it to compile and run. I am at my wits end, with it. I'm not sure what it is that I'm missing. Any help would be greatly appreciated. Thanks in advance. [CODE] #include <iostream> #include <string> #include … |
| | Hello i want to get my computer time using c++ i googled, but i couldnt find anything that suits me... Time code should be able to use this function: if(hours == 10) { do something... } Can you help me? Thank you.  |
| | Here's my problem. I'm trying to write info to a bin file, consider the following piece of code: [CODE]FILE *fp = fopen("banco\\banco.bin", "ab"); char buffer[22]; sprintf(buffer, "55555555 111111 11111"); fwrite(buffer, sizeof(char), 22, fp); fclose(fp);[/CODE] when I run this it writes to the file that line twice when I print it … |
| | I am currently working on a game that takes place in the console. I need to know how to combine [CODE]Console.WriteLine()[/CODE] and [CODE]Console.ReadLine()[/CODE] into 1 line so that the blinking underscore appears on the same line. Is there any way to do this? Any help is appreciated. |
| | hello all i have been writing the java code and new to C programing.I am very confused in point.i have the following code [CODE]#include<stdio.h> main() { int *ptr=50; printf("%d",*ptr); return 0; } ~ ~ [/CODE] why it is giving the segmentation fault.and when i print ptr then it gives value … |
| | I have created a program that reads data from a file and stores it into a vector. The data looks something like the following: 48.698635 -0.000000 0.000019 1.000000 -0.004386 0.002192 // Step 1 48.583797 0.114838 0.100000 1.099997 -0.005061 0.001945 //Step 2 48.457909 0.125888 0.100000 1.199994 -0.005854 0.001883 //Step 3 ect... …  |
| | hey guys, i was wondering if it was possible to display something in a different language like Arabic or any other language in a printf() statement. |
| | Hi! good morning! I am writing a program, that uses interaction between 5 processes(using signals), I am trying to use in one of them- gets command to get a command from the user. And it seems that gets isn't working.. Maybe one of the other processes interrupts the work of … |
| | hey ive mostley got this working however im not sure if im reading the binary file correctly because for some reason its playing up, anyone able to give it a look over ? also i know in my sort function, there is an issue with the comparing of the values … |
| | [code]#include<stdio.h> #include<conio.h> void main() { char gender,Mar_stat; int age; clrscr(); printf("Enter your Marital Status "ma" or "um":\n"); scanf("%c",&Mar_stat); if (Mar_stat == 'ma') { printf("Enter your Gender And Age :\n"); scanf("%c %d",&gender,&age); if (gender=='M' && age >= 30) { printf("You are Insured"); } else { printf("Sorry"); } getch(); } } [/code] … |
| | Hi to all... I am getting a warning, i am trying to avoid that but its not sorted out..Please suggest me to avoid that warning. my code is as follows.. [CODE] const char var[][2][5]={ {"1.95","3.70"}, {"2.40","4.60"}, {"2.70","5.70"}, {"6.60","13.40"}, . . . . }; void fun(int col,int row,char *str) { ... … |
 | [code] #include <stdio.h> main() { int ctr, bin, quotient, deci=0, binary,octal,hexa; float rem; char mark_magic; clrscr(); do { clrscr(); quotient = 1; binary = 1; gotoxy(32,3); printf("-=< MAIN MENU >=-"); gotoxy(15,5); printf("from any Number System to Decimal System conversion"); gotoxy(5,6); printf("------------------------------------------------------------------------"); gotoxy(5,7); printf("------------------------------------------------------------------------"); gotoxy(26,9); printf("[A] Binary System"); gotoxy(26,11); printf("[B] Octal … |
| | Here's the problem I'm trying to solve: I've written a DLL that's used as a plugin within another program. Within the DLL is a number of structure allocations which represent the positions of points in a mesh (over time). These allocations can be very very large. If another instance of … |
| | Hi, I am allocating memory using [B]malloc()[/B] and then I am filling the aloocated memory with "0" using [B]memset()[/B]. The combination of [B]malloc()[/B] and [B]memset()[/B] are being called many times in my project. After adding memset() function affecting my project's performance. So I am searching for the alternative for the …  |
| | [code] void generalboard(); void inputuser(int*pt1, int*pt2,int*pt3); void checkwins1d(int*A,int*B, char C[][3][3]); void checkwinsup(int*A,int*B,char C[][3][3]); void checkwins3D(int*A,int*B,char C[][3][3]); void inputcomputer(int*pt1,int*pt2,int*pt3,char A[][3][3]); void score (int a, int b); void displayboard(int a, int b, int c, int i, int j, int k, char board [][3][3]); int main () { int i,j,k,a,b,c,computerscore=0,userscore=0,counter=0; char board[3][3][3]; generalboard(); …  |
| | I have been coding in C for a very long time, and I thought I had it all figured out, until I saw this code in an MD5 library: [code] static void MDPrint (mdContext) MD5_CTX *mdContext; { int i; for (i = 0; i < 16; i++) printf ("%02x", mdContext->digest[i]); … |
| | Hi to all, I am new to this forum..If i did any thing wrong in this thread please correct me... Let me tell you something about my project .... I am working on ARM7-LPC2148 processor with Graphical LCD. Now i am making a calculator which should be like as our … |
| | I'm trying to understand the correct way to instantiate objects in C#, and I just can't seem to get it right. My code is in lines 17-37 lines 47-51 and lines 102-103 Any direction would be genuinely appreciated. Jim [CODE] private void findMortgagePayment() { string prompt; bool validPV = false; …  |
| | Hey all, i am a newbie at C# and need help with this program. This is what i have so far.The first part of the program work, but the second method InchesToFeetdoes not work. Please help. Due on Monday. Create a class named InchesToFeet. Its Main ( ) method holds …  |
 | Can someone explain this excerpt from a book I'm studying: [CODE]char phrase[] = "Game Over!!!";[/CODE] [U]BOOK:[/U] [I]"C-style strings terminate with a character called the null character to signify their end. You can write the null character as ’\0’. I didn’t need to use the null character in the previous code … |
| | I need to make a SIMPLE BASIC program that plays crabs [code] #include<iostream> #include<string> #include<ctime> using namespace std; int main() { int money, i, wager, roll, roll1, roll2; string name; char bet, R; cout <<"Lets Play Craps!" << endl; cout << endl; cout <<"This program stimulates a session at a …  |
| | I have a Visual C++ console application (I am using windows Vista, Visual studio 2008). When executing the program i don't want to see the Console popping up. How do i code this. I tried simply removing all cout and printf statements but yet this didn't help. Need help here. |
| | Hello DaniWeb! I've found your website very useful for previous problems in my course, but this time I've come across something I just can't figure out. I'm attempting to create a program thats instructions are defined in the code. I've used a previous post as a guideline, and it was … |
| | I need to create a rectangle using for loop and a nested for loop So far the code I've got is: [code]#include<iostream> using namespace std; int main() { int row, i, width, spaces; cout <<"Enter the number of rows: "; cin >> row; cout <<"Enter the rectangle width: "; cin … |
| | [CODE]// Randam Guessing Game #include <iostream> #define NEWLINE "\n\n\n" #include <cstdlib> // need to use rand() function #include <ctime> using namespace std; /*void Start(); void GetResult(); void HighScore(); int a, b, chance, maxrand; char difficultychoice, menuchoice, diffchoice; void Start() { a = 0; b = 0; chance = 0; maxrand … |
| | Hi i got this progamm working fine it is supposed to read a comma delimited text file store as an array and the output a formatted version The problem is its outputting something really weird I dont know why. [B]The text file it is supposed to read[/B] [code=text]Darwin,3,33 Darwin,1,11 Darwin,6,66 …  |
| | I am quite desperate about a random crash. The memory could not be "read" error. I would be very happy for any help. Thank you. [CODE]HRESULT CSceneNode::UpdateAll() { D3DXMATRIX backup_local_tm = ei.world_tm; Update(); SceneNodeIterator begin=FirstChild(); SceneNodeIterator end=LastChild(); for (;begin!=end;begin++) { (*begin)->UpdateAll(); // Here is the random Crash !!! } ei.world_tm … |
| | Hey guys, I am interested into making a 3D tic tac toe game, but right now I am stuck. I created a 3D string... like board[3][3][3]. and each time the user type in numbers between 0 to 2...and the computer does the same too. I played a few 3dTTT game …  |
| | I am new to C, hope someone could help me here. I need to implement a keystroke, for example, i need to programatically implement the 'return key'. As in if someone is pressing the 'return key' from the keyboard. but here, the user will not even touch the keyboard. the … |
| | Hi, What's the best way of integrating a Paypal button in a WinForms application? I can make a tiny WebBrowser and render the form html in it, but when clicking it, processing should be done by the default browser, not the WebBrowser in my application. LEdit: Or I could just … |
| | Hello all! I'm having problems with running c++ on iOS. I have a iOS openGL project in Xcode 4 and an external library written in c++ that has to be a dependency to the iOS target so it can run on an Ipad. right now I'm testing with the iPad … |
| | Hi there, I'm working on a map for a class assignment and running into trouble. I've tried looking around the web but couldn't find anything that helped. I know how insertion works on a basic level when returning a node pointer but think i'm missing some key ideas when using … |
| | Hi to all. It's my first post here. I want to ask about 2D Gabor filter implementation. I have some code but it is not working. So let me present my work first: [code=c]signed int sumX, sumY; long int SUM = 0; int I = 0, J = 0; double …  |
| | Hello all, I have been working on a card game for the last month or so and sofar have created the basics ie. cards, deck... The language is ANSI-C and is created in programmers notepad with devkitpro and MLlib. Everything is working greate so far as in I can shuffle … |
| | i learned earlier how to move between two forms back and forth. but what if there are more forms? this is my code for form1: [CODE]Form2 form2 = new Form2(); private void aboutoldtrafford_MouseClick(object sender, MouseEventArgs e) { this.Hide(); form2.ShowDialog(); this.Show(); } [/CODE] when i click the button I can go … |
| | Hi Guys, I am working on converting a console application into a user friendly GUI. The actual application is written in visual C++ and person has no information none what so ever on how to run it. So to understand the technique I am trying to experiment with the application. …  |
| | The user enters the following : " x+sin(x)-pow(x,2)+5log(x)" How can I make parsing for a statement like that .  |
| | Hi, I am trying to make a program which reads 6 integers , insert into a file numbers1.txt then copy numbers1.txt content to numbers2.txt and finally print numbers2. The problem I have is that when I am trying to copy the file to another the system crashes. My code is … |
| | Is there a reliable method to extract the quantized DCT coefficients of a jpeg image? I can see that there is the jpeglib for manipulation of jpegs but I am wondering if someone has already used it and does the job I want to do. To extract the quantized DCT … |
| | Greetings, I've got a working flex/bison parser that I would like to run from an exe file. However, I can't find the knowledge to achieve that. Do I need to create a C file, with an exec function to call the files? If so, what files do I call in … |
| | Hi all, I am new in C programming, currently learning about linked list. I know that there is a lot of examples about linked list, but I decided to write my own code, to make me more understand. I managed to build a linked list, insert a new node after … |
| | hi can someone give this a quick look over and tell me where im going wrong [CODE]#include<stdio.h> #include<stdlib.h> #include<string.h> #include<ctype.h> void main() { struct Rainfall{ char city[20]; int month; int rainfall; }; Rainfall Rainfallarray[18]; int count=0; FILE * readfile; readfile=fopen("CityRain.txt","r"); if(readfile==NULL) { printf("CityRain.txt failed to open."); exit(1); } printf("CityRain.txt Opened\n"); … |
| | Hello All, I've got a problem and I hope you'll help me, because I'm desperate. I've been finding everywhere on the websites, but I haven't found it yet :( .... I found this website [url]http://www.codeproject.com/KB/miscctrl/ClickAndDragPictureBox.aspx[/url] , where it the same function what I want to do it. I want to … |
| | HI, I am looking for faster input and output method for the C other than just normal scanf and printf modules. Please elaborate by simple example. thanks :) |
| | Hi everyone. I have a few question to ask regarding email notification in c#. I have the following codes: [CODE] SmtpClient smtpClient = new SmtpClient(); MailMessage message = new MailMessage(); message.To.Add("alex@hotmail.com"); message.To.Add("alex2@gmail.com"); message.Subject = "Test"; message.IsBodyHtml = true; message.Body = "<html><b>Hello World!</b></html>"; smtpClient.Send(message); [/CODE] While in my web.config I do … |
| | i have written code to move a dot from on end of the lcd screen to the other end. [CODE] /*move dot across the creen with pixel increments of 10*/ for(x=10;x<120;x+=20) { Glcd_Dot(x,y,0); Glcd_Dot(x,y,1); Glcd_Fill(0); delay_ms(100); } [/CODE] i have seen examples in C, but this is on a 128x64 … |
| | i want to make rot13 encryption this program convert ascii code from a caracter, and work only with uppercase character (65-90) please help me [CODE]#include <stdio.h> #include <stdlib.h> #include <string.h> void rot13(const char *input); int main(void) { char *input; printf("Enter string (max. 255 characters) : "); gets(input); printf("\nConvert result %s … |
| | Your program will have a 3x3 array. The user will input the sum of each row and each column. Then the user will input 3 values and store them anywhere, or any location or index, temporarily in the array. Your program will supply the remaining six (6) values and determine …  |
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