19,876 Topics
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| | Is necessary deallocate memory of pointer-to-pointer? Example: [CODE] my_type_t **example; example = (my_type_t **) calloc(10, sizeof(my_type_t *)); for (i = 0; i < 10; i++) { example[i] = (my_type_t *) malloc(sizeof(my_type_t)); } // ... free(example); // it enough? // Or is necessary do this... for (i = 0; i < …  |
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| | Hi all :) I'm having a few problems with this assignment I'm working on. Its a Java - C# conversion of a Mandelbrot program. What I'm trying to do, is draw the Mandelbrot to a Bitmap, and then print it onto the Windows form. So far I've been able to …  |
| | can you help me how to convert US7ASCII into UTF-8 using C? Thanks !  |
| | Hi, I have the following code that is meant to serve as a t9 program like the one in mobile phones. It initially loads a dictionary file, stores the values in a dictionary, and prompts the user to enter a string of numbers between 2 and 9. For some reason … |
| | Please give an algorithm to know the memory size in bits......... |
| | Hi!, im new in this forum (and programming in c :)) (and sorry, my english is not good enough, I speak spanish) I have a problem trying to release memory from a Matrix structure. When I try to release a square matrix there is no problem, i can do it, … |
 | Hello everyone, I'm just getting started with C and I need help on this problem. It's a pretty long read so bare with me. [QUOTE]Objectives 1. To reinforce your knowledge of ‘for’ loops and ‘while’ loops 2. To utilize strings (character arrays) in C 3. To implement logic in your … |
 | Hi all, Is there a way to make thread pools in POSIX pthreads? (using c) I could only find implementations for java and c++, but I need it to be in c. Thanks. |
| | If you are viewing my post, thank you for taking the time to hep me out. It is greatly appreciated. Here is what I'm trying to do: Write a function called Square2 that will take as arguments an integer and a double. With the use of references i want my … |
| | i want to do a program to implement time table preparation program using c language.i need some help to how i should write codings,necessary fields.i dont have any idea to start.so i need some examples that i have to compare with that and to try myself |
| | I need help in reading a text file and by using a switch statement the user can either press 1 to find the average of all the integers in the text file, and by pressing 2 they find only the averages of the real numbers (only positive integers) in said … |
| | Hello all, I would be grateful for some help with a function template problem. I cannot figure out how to pass a matrix as an argument in a template function. I keep getting the error "does not match any template declaration". Can anyone suggest what my problem is? Have I …  |
| | Hello, I am in Object Oriented Design for C++ at the moment... The test we are having has a question on it and the professor wants us to find and know the answer before we come in for the test. The question is this: The following code out puts what … |
| | i know how to use fopen to read a file, but i have a changing file name like this "p%dt%03d.state" where the variables are changing inside a loop. eg : p1t001.stae, p1t002.state ... etc how will i be able to do that? thanks!! |
 | Hi, i have the following code not able get the output #include <stdio.h> #include <string.h> #define DELIMITER "," int main() { char *bufferPtr = " \"Angelin\",\"rajeesha\""; char *delimiterPtr =NULL; int parseIndex = 0; char ** fieldarray; fieldarray[parseIndex] = bufferPtr; parseIndex++ ; delimiterPtr = (char *)strstr(bufferPtr, DELIMITER); printf("\n delimiterPtr %s\n",delimiterPtr); bufferPtr … |
| | Hi, Please suggest me all possible ways of declaring structures in my C codes. I want to be able to create a structure which I can use in my methods without have to use the keyword "struct" each time to declare it. One way I already know of is : … |
| | like the thread title said i need the best C book for never programmed person can you please tell me it thanks.... |
| | Hello im confused with pointers, how do i create a shallow copy of a string array in c ? [CODE]char *currMenuArray; // ??? char *MainMenuArray[] = { "MAIN MENU", "One", "Two", "Options", "Quit" }; char *OptionsMenuArray[] = { "OPTION MENU", "Option1", "Option2", "Option3", "Back" }; void main() { currMenuArray = … |
| | The book Im using. Pg 108 - 124 Objects Abstraction, Data Structures and Design using C++ Author: Elliot Koffman and Paul Wolfgang I have a problem with this code. All of these errors are occurring in the Phone_Directory.cpp. It is in, getline, << , out. .......functions... I tried getting these … |
| | can you help me to answer this problem... A high building has 26 floors with the level 0 and the level 25 as the lowest and the highest level, respectively. It has a lift for transport the occupant to the level destination. The lift moves up and down in respect … |
| | Can anyone share concept/program in C to add two 64-bit numbers on a 32-bit machine |
| | #include<iostream.h> class Exforsys(); { private: int a; public: Exforsys() {} Exforsys(int w) { a=w; } Exforsys(Exforsys& e) { a=e.a; cout<<"Example of Copy Constructor"; } void result() { cout<<a; } void main() { Exforsys e1(50); Exforsys e3(e1); cout<<"\ne3="; e3.result(); } } |
| | I have setup an array and i have calculated the sum of my array. Now i need to find standard deviation of the numbers entered in my array. here is my code [CODE]#include <iostream> using namespace std; int main() { int i=0, count, maxSize = 36; double arr[36]; double number; … |
| | Hi, So I've been having problems with my Eclipse C++ IDE. In other words, I haven't been able to run anything, not even a hello world program. I think the problem has to do with the fact that I don't have a c++ complier in my system. I use Windows … |
| | I'm making a program that accept 1 character long strings (and ignores spaces " ") until a user presses return/enter. So far I have, [CODE] int main(){ char expression[1]; while ((scanf("%s",expression)) != EOF){ //code } return 0; } [/CODE] it is assumed that the user is entering single digit strings … |
| | I have build a dynamic library in both debug and release mode. In the Source code of this libray relloc() function is used. I am linking this libray to my executable application. When i execute the application in debug mode, the application is crashing with the following message "Unhandled exception … |
| | [COLOR=#000080]I wonder if is it possible to link the GPRS modem and a I/O board together? I already have a VB6 coding and I know there is little that VB6 can do. Hope that you can help me out. 10z [IMG]http://www.xtremevbtalk.com/x_images/images/smilies/confused.gif[/IMG] [IMG]http://www.xtremevbtalk.com/x_images/images/smilies/tongue.gif[/IMG] [/COLOR] |
| | 192.168.1.1 = 11000000.10101000.00000001.00000001 for example: 192 = 11000000: [IMG]http://lashatt.comoj.com/convertiptobinarynumbers.JPG[/IMG] 128 + 64 = 192 and I have a question about it, for what is used all this? I mean for what will be exposed all this? for what we ar converting all this? |
| | Hi All, I am working on a Mandelbrot. I can draw the Mandelbrot to a bitmap and then paste it on the form. What I WANT to be able to do is when the user drags their mouse over an area, it redraws the Mandelbrot with the x and y … |
| | I've heard the curses library can be useful when trying to implement the handy DOS-only tools of gotoxy() and clrscr() using move() and initscr(). Though, there is a way to write your own gotoxy() in the Linux environment. This topic isn't touched often, so I would like to change that. … |
| | We have two arrays .merging them is simple.i want to know how can i sort then after that without declaring a single memory after that.... |
| | Okay. This problem is from "Objects,Abstraction,Data Structures and Design using C++" by Elliot Koffman and Paul Wolf Gang pg127. #2 Implement an array- based program application that manages a collection of DVDs. The data for each DVD will consist of a title , a category, running time, year of release, … |
| | hi,i am new to C i am constantly getting the error "Segmentation fault" and i dont know how to deal with it. I can't find an error in my code. [code=c] #include <stdio.h> #include <stdlib.h> #include <ctype.h> #include <string.h> #include <netinet/in.h> #include <arpa/inet.h> #include <pcap.h> int main() { FILE *ifile,*ifile1; … |
| | Hi all, when I declare an array: [CODE]datatype array[Index];[/CODE] what's max value of Index ? |
| | I wrote the following code for testing the functionality of malloc() . The Code is compiled using GCC and executed with no errors. #include<stdio.h> #include<stdlib.h> int main(void) { char *str; str=(char*)malloc(4*sizeof(char)); printf("Enter string"); gets(str); if(sizeof(str)>4*sizeof(char)) {printf("Out of Memory"); free(str); str=NULL; } else{ printf("\nsring entered=\n"); while(*str) { printf("%c",*str); str++; } free(str); …  |
| | my code should expand the binomial from second to the tenth power using looping, conditional, array statements cprogram. I must input the value of a and the value of b in the binomial: ( ax +b ) example : input: (1x+2) output: (x^2 + 4x +4) help me please. |
| | [CODE] for(i=0;i<n-1;i++) { for(j=i+1;j<n;j++) { if(a[i]>a[j]) { temp=a[i]; a[i]=a[j]; a[j]=temp; count++; } } } [/CODE] [CODE] void select(int a[],int n) { for(i=0;i<=n;i++) { k=i; min=a[i]; for(j=i+1;j<=n-1;j++) { if(a[j]<min) { min=a[j]; k=j; count++; } else count++; } a[k]=a[i]; a[i]=min; } } [/CODE] which one is selection sort???first or sec?? |
| | hey dudes pls help me on this. My program is crashing on the following piece of code When i make 1 recurssive function to work, the program works without crashing. So I would really need help in spotting the mistake I have done. Incase if you want to know what … |
| | I have declared a global variable. But when i assign the "i" in the loop as the function parameter, the global variable does not chang. It seems that it creats another variable "i" and assigns it to that "i". Is it possible once i have declared the global "i"?? I'm … |
| | Hi there, I have only just began the proccess of learning C# Programming (this week)returning to education as a mature student, one of the assessments I have been given is to find out how to, and then write a program using 'nested for loops' to display the 1,2,3 and 4 … |
| | Hi, Friends! I am doing my last year term project that needs me to use C and write a sudoku game. However, I don't know how to write the check part, can some of you help me a bit? Here is my code: [CODE]#include<stdio.h> #include<stdlib.h> #include<time.h> int x,y; int matrix[9][9], … |
| | Hello everybody, i make a simple calculator with C. When I compile it, the compiler didn't show error but when I run my program the result is wrong... This is my code: [CODE=c] //////////////////////////////////////////////// // Calculator // // Crated by : Invecta // // Thanks to all members of komunitas-bsi.com … |
| | Hi, I am getting seg fault when trying to run the code. I don't understand where I made a silly mistake. Can someone help me out please [code] #include<stdio.h> #include<string.h> void xstrcpy(char *, char *); int main() { char *a = "Hello World"; char *p; xstrcpy(a, p); return 0; } … |
| | this program is challenging any ideas program should read the commands in sequential order, process them, perform the necessary calculations, and then print out the results in a neat, readable manner, both to a file and to the screen. Details The first line of the file contains two characters giving … |
| | this program is very chalenging and i was wondering if you could provide some ideas as how to solve it. You are required to simulate the trajectory of a 60-ft long test rocket. Engineers predict that under the current wind conditions, the height of the rocket at time t is … |
| | hi i am new to programming and have had problems installing C++ on vista. Is it possible to get C++ working on vista or will I need to switch back to XP or ubuntu? Does Bloodshed work on vista? |
| | Hello all, I have a question: What are the advantages & disadvantages of the circular linked list compared with: a. Usual linked list b. Doubled linked list Although the implementation of the usual list functions & the circular list functions are similar…when do we have to use it?? or in … |
 | Hello to all and thank you for your attention. I need to do a few programs using Turbo C 3.0, but I have a problem when I use it on my notebook (running on WinXP SP2). It starts OK: it goes into MS-DOS mode (fullscreen) and all seems good, but … |
| | [code] List<object> ap = new List<object>(); [/code] my object classes are the classes that i have created. for example; [code] class istanbul { public istanbul(string a , int b) {this.a = a ; this.b = b ; } public string a ; public int b ; } ap.add(new istanbul("dsklfjsf", 12)) …  |
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