[c] Forum Topics

hi guys , I am a first year student! can anyone help .. the code. is . [COLOR=RoyalBlue]main() { char *b="abc"; printf("%s",b); }[/COLOR] the output is :abc. my doubt is : how can we assign a string constant to a pointer.And when we assign like this is a character array …

You heard me, I want to know your guys' techniques for converting data types without using additional headers (such as studio.h). Are there any tricks or intrinsic methods? Can I write my own method? I simply don't like adding unnecessary headers becasue I don't use 95% of the crap that …

This is really simple code that prints the address of a variable : [code]int main() { int x; scanf("%d", &x ); printf("Address of x : %X, value : %d" ); return 0; }[/code]<< moderator edit: added [url=http://www.daniweb.com/techtalkforums/misc.php?do=bbcode#code][inlinecode][co[u][/u]de][/co[u][/u]de][/inlinecode][/url] tags >> Simple as that. But the thing is this program gives the …

Hi, i am very new to c and was wondering if anybody can help me. i want to create an array of size 1 million bits. i heard you can use malloc or calloc. does anybody know how to do this, thanks in advanced, sc

I'm trying to put a status bar on a dialog based app. I have the following code in the OnInitDialog(): [code] if (!m_wndStatusBar.Create(this, WS_CHILD | WS_VISIBLE | CBRS_BOTTOM) || !m_wndStatusBar.SetIndicators(indicators, sizeof(indicators)/sizeof(UINT))) { TRACE0("Failed to create status bar\n"); return -1; // fail to create } else MessageBox("Status bar created", "Debug"); // …

I am developing an application that interefaces with a roll printer. When I am using the printer specific fonts, I am capable of send out a partial cut automatically once the document is finished (I am using the CDC class) Through my searchings of the internet, I have stumbled upon …

I have win2000,sp4 machine that when a user is logged on and they share the c drive as c$ it will change back to unshared after the machine is rebooted. The machine has a CD-Rom drive D shared as D$ which is not affected by it. It also doesn't seem …

how i print the output of the c programming code in a printer and using c code? Like output is hello and also print the message Do u want to print it ? if i press yes it would be print in printer. please get me the c code of …

Hey guys and girls, im a n00b at the programming side of PC's but im trying to create not a pop-up but a sub window? does that make sense? like when you get an error message or when you get an information box up! can anyone help me with basic …

[code]class Thing { public: int Item; Thing (int Value); Thing (int Value1, int Value2); int GetValue1 () const; int GetValue2 () const; private: int DataItem1; int DataItem2; void SetValue1 (int Value); void SetValue2 (int Value); }[/code]<< moderator edit: added [url=http://www.daniweb.com/techtalkforums/misc.php?do=bbcode#code][inlinecode][co[u][/u]de][/co[u][/u]de][/inlinecode][/url] tags >> How many member functions does class Thing have? …

Hi, now i have work on it for a long time it is working but, when it can not find the item any how it will print item not found + item found , i have no idea what is wrong any help welcome, thanks [CODE] .... ... .. if( …

Greetings, i have been having problems trying to read from files using c programming. i succeeded in reading from .txt files and playing with the contents but i can't read al the contents of any .jpg or .doc file. please how do i go about this. i hve not tried …

Explanation is a bit long so please bear with me, solution is short :lol: We got an assigngment from uni to create word dictionary program to read an external file where each line consist of WORD and DEFINITION separated by empty space. If some word exists more than once add …

Hi everyone I am really having trouble right now with oracle for linux. Please tell me how to connect oracle using c/c++ in linux. If anyone knows about any tutorial or have code, please plzzz post me that as well.

Hello, not sure if it's ok to ask this here. I need to simplify a boolean algebra expression. x'y'w'z' + x'yw'z' + xw'z' + x w + x'y'w'z + x'y'wz + x'y'wz' after doing some operations the expressioon is like this x' y' + zw' + zx + xw My …

Hey all. I'm still trying to get use to how to work with rand. I'm just messing around with it to try and get good and comfortable with it. Working with a variable whose value starts out at 0, I want to try three different paramaters on it. 50% of …

The latest POTM contest is underway ... if you haven't participated before, the POTM is purely for fun and presents a programming problem to enjoy every couple of months. We have an active forum and a mix of 1300 participants from novice to expert. POTM winners receive the glory and …

Hi, We are working on an assignment where we have to use haptic interface and VRML file. This assignment also asks us to include a sound of the VRML image which we are using. Could anyone please help us as to how to code in C language to upload winamp …

hi guys, i am a beginner and i need a few books which are really good and have lots of exercises.it would be better if it was fully devoted to exercises like 'Exploring C' by Yashavant Kanetkar which was excellent.All his C books are fantastic. you can finnd them at …

Hello! I'm a new user of this forum. I'm italian and I work like programmer. I need of some information about C code and I wish you help me! Bye bye :D

Hi... please help me with this qn... i really have no idea how to start off... thanks.. i have attached the pdf here... pls do help me... it will be great if you can tell how to start off... thanks thkanks

How to I remove a varible from memory? A friend and I were talking and he seems to think that just resetting it to "" would be enough. Is he correct? If not, how do I remove varibles when I'm done with them?

Can someone please have a look and help me on making this Binary Search algorithm work. Donmt know what is wrong with it . [CODE]#include <stdio.h> #include <stdlib.h> #include <time.h> enum SearchResult {FOUND, NOT_FOUND}; SearchResult binarySearch(int array[], int key, int low, int high, int *comparisons); void fill_array(int array[], int sizeOfData); …

I have an URL of a file on the Web stored in a string. I want to start the download dialog box of Internet Explorer in order to download the file. Do you know any APIs?

please how do i store large numbers in c. the number has no be large like 121223824824623423476234762347623423476234234342342332762376 maybe up to 100 digits or more. after storing the number i need to carry out mathematical operations on that number which of course has been stored in a variable. mathematical operations like …

[code]/*following is the shortest program that finds whether the entered no. is power of two or not,but i need to add some code(logic) to it. note:- program do not make use of keywords like if ,while ,for ,switch. */ #include<stdio.h> void main() { int n; char c[2][23]={"no. is not power …

My darn code keeps crashing, what am I doing wrong? I have a class with the follwoing method: [CODE]void BBSNode::AddToBuffer(char *buffer) { //strcat((char*)inputBuffer, (char*)buffer); sprintf("Got Data: %s\n", buffer); }[/CODE] I'm calling the method like this: [CODE]nodes[nodeID].AddToBuffer(sockBuffer);[/CODE] sockBuffer was declared like ... [CODE]char sockBuffer[IN_BUFFER_SIZE];[/CODE] Now, when I run the program and …

Today I had an exam and in that there was a question to differentiate between type casting and type conversions...Are they actually different?? I always thought they were same... :?:

Hi, We are working on an assignment where we have to use haptic interface and VRML file. This assignment also asks us to include a sound of the VRML image which we are using. Could anyone please help us as to how to code in C language to upload winamp …

I am working on a project that requires me to recive data from a network application. After I recive the data I'm suppose to break it up. Now I know of a way to sorta do that by using "tokens" and strtok (if you don't know strok breaks up a …

Hello ppl. Ok have to investigate and write a report on the efficiency of the following Linear Search algorithm. But im having problems starting off.... can anyone here help me kick start this 3 page report... would apreciate any information & help you guys here can give. [CODE]// This program …

Hello, I'm trying to understand how this heap sort algorithm works (how this particular implementation from [url]www.eternallyconfuzzled.com[/url]) works. [code] void jsw_do_heap ( int a[], int begin, int end ) { int save = a[begin]; while ( begin <= end / 2 ) { int k = 2 * begin; while …

[color=royalblue][QUOTE][color=royalblue]Codase is the leading source code search company with advanced source code understanding and xml index/search technologies. Rather than treating code as text, Codase understands programming languages, and treats code as code, the way it's supposed to be. This unique and syntax-aware approach provides the most accurate and detailed search …

I kno there is a way to make a alert message in win32 that goes away after a time delay...Does anyone know the code for this?

Hi...Im trying to make a date reminder type program...But Im looking for something along the lines of If(date == 31102005){*code*....May I please have help with this?? This is what i did...But is totally wrong...I need something that checks the date...where the user does not enter data. [code] #include <stdio.h> #include …

I did a "single linked list" header & Implementation & Main files & everything worked very good. But now i must Implementation for the "doubly linked list" & i just need to know what i should add to my functions so they will work good, should i change all the …

[code]/*In the following program i have to find the size of structure cal without making use of sizeof Operator but is incomplete, so add minimum line of code accomplish this*/ //note :-do not make use of sizeof #include<stdio.h> struct cal { long double d; float f; char c; }; void …

*make sure that this program give correct o/p to corresponding i/p/* [code]#include<stdio.h> #include<conio.h> void main() { char fname[15]; FILE *f; char c; printf("Enter the file name"); scanf("%s",&fname); f=fopen(fname,"w"); while(c=getch()!='#') fputc(f,c); fclose(f); f=fopen(fname,"r"); while(c=fgetc(f)!=EOF) printf("%c",c); getch(); fclose(f); f=fopen(fname,"r"); while(f=fgetc(c)!=EOF) printf("%c",c); getch(); }[/code]<< moderator edit: added [url=http://www.daniweb.com/techtalkforums/misc.php?do=bbcode#code][inlinecode][co[u][/u]de][/co[u][/u]de][/inlinecode][/url] tags >>

Hi, I've just started coding a simple linked list library and I would like the final implementation to have functions like sorting & searching. My questions are:- 1.I think that my library would need to implement sorting and searching similar to the qsort() and bsearch() implementation's in borland's library. 2.Could …

hai, i want to print graph nodes and their connections among nodes. how can i print this ? can any give me code? waiting for ur reply,,,,,,,

My program prints out Fibonacci_number(0,1,1,2,3,5). The program is ok. My problem:I want to take a number from Fibonacci_number(0,1,1,2,3,5) and multiply whit 10. ex: I want to take 3 and multiply with 10. I tried to write another function and call a Fibonacci_number from fib(int k)and then multiply it whit 10. …

I only get a result of "1.00" for each mileage calc and also for the overall average, regardless of numbers input. Can anyone see where the problem(s) is in my program below? Thanks in advance! [code] #include <stdio.h> void main(void ) { /* Variable Declarations */ /* ---------------------- */ float …

I was wondering if someone can help me with a code...I want to make a code where when someone opens the .exe an Instant Message in the AIM client is *SENT* not just opened...This Is what I Have So far...This is just a Snippet...Just the part im asking for help …

Hi, I want to know what is the logic used for generating a random number. Can anyone tell me the algorithm for random number generation without using standard library functions? Thanks

1. (a) What is trashing and list possible causes of thrashing. (b) How does the operating system detect thrashing and what can it do to eliminate thrashing? [15 marks] 2. The given program simulates the effect of changing page sizes in a demand paging system. The following sequence of request …

I'm trying to pass arguments to my program so that I can store them into an array. For some reason my IDE/compiler is treating the blank space in between arguments as an argument. I'm using bloodshed, but it doesn't say anything about a seperation character. Can anyone tell me what …

Hi all. I need some help counting specific numbers in C. The programme should accept two sets of numbers. It should then count how many of the second number is in the first set. For example: First input = 23387 Second input = 3 Ouput = "Number 3 appears twice …

Code 1 [code] class Drink { public: Drink( char *name_ ) : name( name_ ) {} char *name; char get(int i) const { return name[i]; } }; [/code] Code 2 [code] class Drink { public: Drink( char *name_ ) : name( name_ ) {} char *name; char & get(int i) …

This is probably a stupid question, but i dont get the answer. Plz help me understand. Question: How could a linked list and a hash table be combined to allow someone to run through the list from item to item while still maintaining the ability to access an individual element …

Hi :o , I would like to know if it is possible to write a console program in [B]MS Visual C++ 6.0 [/B](ATM transaction program), that stores data to a database such as [B]MS Access 2002[/B] or [B]Oracle 9i[/B], through [B]ODBC[/B] :?: I've searched all over the net and I …