19,876 Topics
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| | Hey respected users and developers, I am a newbie to this pool of c... I am just 14 yrs old.. Plz send me free link to plearn pointers in c.. i hav downloaded many books but all of tem are useless.. The language used in the book is so difficult …  |
| | My problem is that..... whenever i try to run a graphics program in c on windows vista,it does not since it is not supporting fullscreen mode. please tell how could i run graphics pro do i need visual c???  |
| | how do i want to add search funtion by matric value to get the info of the student add this code[ICODE]#include <stdio.h> #define MAX 10 struct studenInfo{ char name[81]; char matric[71]; }; int main() { struct studenInfo library[MAX]; int menu (void); struct studenInfo add(void); void list(struct studenInfo*sp, int size); int …  |
| | [code]#include <conio.h> #include <stdio.h> #include <windows.h> void display(void); void menu(void); int main() { char username[9]; int password=0,x=1; display(); do { printf("\n\t\t\tPlease enter your username:"); scanf("%s",username); printf("\n\n\t\t\tPlease enter your password:"); scanf("%d",&password); //problem if (username == 'udental' && password == 1987) menu(); else { printf("\n\n\t\t\t YOU HAVE MADE AN INVALID INPUT"); printf("\n\n\t\t\t … |
| | Since mid-afternoon the text in the C forum has been showing up centered on the page (thread listings, threads). I'm using Firefox 3.58. I just checked on IE 8 and it looks ok except that the Intel banner ad is in the wrong place. Anyway, just thought I would let … |
| | Hi, I basically have a Token of type char *token written from a custom tokenizer.C and H file. What i want to do is parse that into individual characters such has if that char *token is {4r$a$} i want a char arr {4, r, $, a, $}, rather than the …  |
| | Dear all, I am working on the code below: [CODE] int cookTime(int time) { int second, minute; for (minute = time; minute > -1; minute--) { for (second = 59; second > -1; second--) { sleep(1); printf ("%i", minute); printf (" : %i\n", second); } } } [/CODE] Now this … |
| | Hi all, Im trying to use a variable as a path in C. For instance, the user enters a directory and this is used with the '*.*' notation attached so the program loops all files in the directory. I've got the PHP part of this code working in a separate …  |
| | Hi everyone.. Suppose i have a function : [B]void foo(int ind,float **ptr1,float **ptr2[/B]) that allocates memory using malloc .. - double pointers are much more in reality- I want to use this pointers in other functions too, but when i call them(functions) in main() .. memory leak message appears .. … |
 | I have coping with radix sort implementation for numbers which have different length, already I have problem about coding Radix sort for integers and now I need to consider different length numbers please help! Also the other problem is I need to get each number that are separated by blank … |
| | I am trying to read input form the user and then print them to a file but the compiler is giving me some error about invalid pointer at the fprintf statements [code]void addrecord(void) { struct custinfo info; FILE *customer; printf("\n\n\t\t\t PLEASE ENTER THE CUSTOMER INFORMATION BELOW"); printf("\n\n\t\t\t REGSISRTATION NUMBER"); scanf("%d",&info.regis); … |
| | hello everybody, I have one project due on this sunday....please help me with this.....any clues hints would be highly appreciated.....thanks a ton This project will require you to develop three C functions: float nandFloatMul(float a, float b) float nandFloatAdd(float a, float b) float nandFloatSub(float a, float b) Each of the … |
| | Greetings, String parsing isn't always an easy task. Especially in cases where you need to split a single string into a great multitude, but also accounting for maximum performance. The following code presented does this task simply. Using precise allocation techniques perform greatly when writing an algorithm to precision. |
| | I need to create a christmast tree which takes R value from user then output on console a Christmas tree in which last part height equals R. The tree consists of triangles of heights from 1 to n.The shape must look like (for R=4) [IMG]http://img136.imageshack.us/img136/4862/christ.jpg[/IMG] thanks in advance... |
| | the question is using pointer variable: a)write a program that receives a sorted array of integer.then it will read an integer value and insert that integer value in correct place (using pointer variable) -is it how im write the code right. b)improve the first program code by allowing the program … |
| | I'm scanning a file to see if user input matches a word in the txt file.. if it matches.. increase the array size and add the word. This is a 2d array. "max_word_size" is currently just a constant variable. [CODE]void UserMode(char userAnswers[][max_word_size], int *size) { FILE *fid = fopen("dict.txt","r"); char … |
| | [CODE]int main() { char username[9],username1[9]; char password [5],pass[5]; int y=1,i=0; strcpy(username1,"udental"); strcpy(password,"1987"); display(); do { printf("\n\n\n\n\n\n\t\t\tPlease enter your username:"); scanf("%s",username); printf("\n\n\n\n\n\t\t\tPlease enter your password:"); //problem/probelm while((pass[i]=getch())!='\r') { printf("*"); i++; } if (strcmp(username,username1)==0 && strcmp(password,pass) == 0) { Sleep(1000); system("cls"); break; } else { printf("\n\n\t\t\t YOU HAVE MADE AN INVALID INPUT"); … |
| | [CODE]#include <conio.h> #include <stdio.h> #include <windows.h> #include <string.h> #include <stdlib.h> void display(void); void menu(void); void dinfo(void); int main() { char username[9],username1[9]; char password [5],pass[5]; int y=1; strcpy(username1,"udental"); strcpy(password,"1987"); display(); do { printf("\n\n\n\n\n\n\t\t\tPlease enter your username:"); scanf("%s",username); //Right here i want to print out **** printf("\n\n\n\n\n\t\t\tPlease enter your password:"); scanf("%s",pass); if … |
| | Hello, I've an external/global array that is used every where in my code.[CODE] // global.h file short is_valid[10];[/CODE] I initialize my array somewhere in the code and I want to check if everything works. When I try to print the values of the array, I get segmentation fault. [CODE] // …  |
| | Program not running I'm not sure of he problem [code]//Employee.h #ifndef CLASS_H #define CLASS_H class Employee { protected : char *firstName; char *lastName; public: Employee (); Employee ( char, char ); //accessors //retrieve const char *setfirstName (char); const char *setlastName (char); //mutators //return const char *getfirstName (char); const char *getlastName … |
| | Using the example of 10, all the numbers from 1 to 10 are initially in the game. Suppose the user chooses 9; 9 is added to his score. The Tman gets 1 and 3 since these are exact divisors of 9; the Tman’s score is now 1 + 3 = … |
| | So I am trying to take my assignment and make it load an input file instead of having to input each value manually. How would I do that? Also if my program took arguments (p1a, inputfile, outputfile) how would I link that too Thanks |
| | anyone knows how to use clearscreen with dev and how do you put like asterick in place of user input |
| | I think I'm semi-close to a solution, but it's just not happening for me. I'm having trouble populating my dynamically allocated multidimensional array with data from a text file. Here's what I have: [CODE]#include <stdio.h> #include <stdlib.h> #define MAXLINELEN 18 FILE *getOpen(); int main() { FILE *inFile; // Declares inFile … |
| | The code below compiles, runs, and gives correct results. Note, however, the commented out "Experiment" code. I want to be able to call a function which accepts a variable number of parameters, which then calls another function and passes it those parameters. How can I fix the commented-code so that … |
| | //help me i dont know what wrong with list function [code] #include <stdio.h> #define MAX 10 struct book{ char title[81]; char author[71]; char category[31]; }; int main() { struct book library[MAX]; int menu(void); struct book add(void); int list(struct book,int); int choice, count = 0; do { choice = menu(); switch( … |
| | Okay I've been working with printf for a while on C and I have been trying to use some of the backslash commands such as: \b = backspace \r = moves the cursor to the beginning of the line For some reason they don't seem to work on xCode. 1. … |
| | [CODE]# include <stdio.h> # include <stdlib.h> # include <string.h> # include <conio.h> typedef struct{ int a[99]; }number; const int max = 99; int main () { number array; int j; int count = 0; for ( j= 1; j <=max; j++ ){ count = count +1 ; array.a[j] = count; … |
| | [CODE]#include<iostream> using namespace std; class point{ private: double x,y; public: double getX(); double getY(); void set(double c, double d); }; class polygon{ private: string color; public: void setc(string color1){ color = color1; } void print(){ cout<<color; } string getColor(){ return color; } }; class triangle: public polygon{ private: point v1,v2,v3; … |
| | i have a problem with using the parallel port to output signal to control devices or to receive data . i know that winxp restrict access to the port, so i downloaded the inpout32.dll and i put it in the system32 folder then i used the inport ,outport functions but … |
| | Hey I am pretty new to c++ and algorithmic , so please try explaining me what to do or give me a code for example don't redirect me to a site that already made a library for this because you only wasted your time telling me that. For example i …  |
| | [code] // This is My Client TCP program in C++ // Program Name client.cpp #include <winsock2.h> #include <iostream.h> #include <windows.h> #include <iomanip> char szServerIPAddr[ 20 ] = "192.168.5.251" ; // IP address of my Server int nServerPort = 5000 ; // The server port that will be used by clients … |
| | [code]struct Node { int data; Node* Next; }; void mergelists(Node*&A, Node*&B , Node*&C) { Node *s=A; while(s!=NULL) { s=s->Next; } C=A; A=NULL; B=NULL; [/code] }(i have a missing but i don't know where) |
| | [CODE]//Converter //Thursday 25 2010 7:16pm #include <stdio.h> #include <stdlib.h> int main () { int i; char buffer [33]; printf ("Enter a number: "); scanf ("%d",&i); itoa (i,buffer,10); printf ("decimal: %s\n",buffer); itoa (i,buffer,2); printf ("binary: %s\n",buffer); system("pause"); return 0; }[/CODE] |
| | hello sir/mam turbo c still is not opening with dos. now what should i do? plz reply me as possible as soon. |
| | I have written a program for the famous game of life problem. The program is running perfectly for the sequential version. Now I am trying to implement it in parallel with MPI. I am just sending the main function where I am calling two functions. Calculate is updating the array … |
| | Hi, I am currently writing a program that requires me to take values from a text file and store them in an 2d array, I am quite new to c++ programming so I am not sure how to do it. My text file (posvalues.txt) looks like this: 0 0 0 … |
| | I have to count characters, words and lines from a text file. I am able to count characters and lines but not words. This code is error-less, but the output for words always appear 0. Anyone able to help me see what's wrong and provide a way out? And I …  |
| | Hi, Problem: I have two libraries with two different queue implementations. but with same structure name as "queuetype". Now if I include both of the header files in my code, compilation will go for toss saying "error: conflicting types for 'queuetype' " I need to include both the files. How …  |
| | can i know how to save a file name based on the user's input for example: Enter your name : Derrick then i save this input to a file .txt named derrick (derrick.txt) how can i do it? i only know how to use the rename() and delete() function...in the … |
| | Hello everybody! I've wrote a very simple echo server, based on a book about LInux socket programming example and it works just fine. My only problem is that i want to use select() function to handle several connections at one time. I've read lots of reference concerning that function and … |
| | Dear sir, I want information about c of c++ I want design the prgm to DISPLAY and SPEAK... The sentences..... when i run the prgm to DISPLAY that sentences and SPEAK that sentences... plz give me.... |
| | cant understand much this is the code [CODE] { char *tok, *str; str = calloc (50, sizeof(char)); tok = strtok(str1, " "); while(tok) { if(strcmp(tok,str2)!=0) { strcat(str, tok); strcat(str, " "); } tok = strtok(NULL, " "); } strcpy(str1, str); return str; } [/CODE] what is the function of while(tok) … |
| | Hey everyone, I have a kind of large problem. I am trying to input something in C, a number between 0 and 50,000, using scanf(). I understand how scanf generally works, and it does for the most part, but for some reason if the number I enter is greater than … |
| | [CODE]typedef struct _node btree_node; struct _node { int* keys; btree_node* children; int count_keys; int is_leaf; btree_node* parent; int position_in_parent; }; [/CODE] I am getting this error: [CODE]error: no match for ‘operator=’ in ‘*(node->_node::children + ((long unsigned int)(((long unsigned int)(i + degree)) * 40ul))) = 0l’ note: candidates are: _node& _node::operator=(const … |
| | I need to implement Dijikstra's and Floyds algorithm using a linked list !!! can anyone give a code on how to do it !! because i know to implement it using Matrix but am not familiar with the linked list !! please help me on this !!! The rules of … |
| | Hi, currently im working on a project for uni but i have no knowledge in C at all basically what im trying to do is remove all * !"£$%^&*()- and double spaces from a text file so far i am able to copy the text file so that im not … |
| | I really want to write this program in c without c++ coding. Please help me convert my code to c only. Here is sample input from a text file: alex busted marries marries test teste tested smile smiled works worked indexed hello kkked holddd smexexed whitespaced and Here is output … |
| | I made a simple program where a user can pick from the menu. My problem is where do i put this code properly inside the fuction of [B]funcFloat[/B] and [B]funcInteger[/B] [CODE]if (myFloat < 0) // this will output if the user entered a negative value { printf ("You entered a … |
 | Hello Daniweb, I've ran against an issue in my code and i'm not sure why I receive an error. I've managed to reproduce the error with the following code: [CODE="C"] #ifdef _WIN32 #define PERFORMANCE_METING #endif #ifdef PERFORMANCE_METING #include <windows.h> #endif #include <stdio.h> #include <stdlib.h> typedef enum { FALSE, TRUE } … |
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