[c] Forum Topics

I am new student in c programming class and I have to do a program that shows "currency Conversion" and then make a flow chart and control sheet.

I'm doing programming which can traverse subdirectory and show lists. If I check just file part, it was not problem. But when I do directory part, and have to recurse program itself(I marked as "from this part"), it show strcat segment error. I'm thinking it's problem if string and char* …

Is there any character that takes cursor to previous line? printf("H\n"); will print H and then take cursor to newline(1 step down). output: ............ H _ ............ But is there any control character that will work in the following way: printf("\nH(the character i am finding)"); takes cursor in newline, prints …

[b]Split from - [url]http://www.daniweb.com/forums/thread33991.html[/url] [/b] Hi, I need a logic to align 10 variables in different order every time a user logs into the application. Thanks in Advance :)

I have a program for school. The program is an inventory program. It will start by writing blank records to a file. The user then should have a case drive menu. The user will select an option for what action they desire. Actions are add new record, change record, and …

I've been given an assignment in class to take some code and work on improving the optimization, we can either write new code or use old code. For some reason I can't think of anything that would be a good example of code that can use multiple optimization techniques, I.E. …

I am having issues with outputting a string correctly that is coming from a 4K read buffer. Here is the code I have currently: read_4K.c (cannot be modified) [code=c] int read_4K(char *b) { return read(0, b, 4096); } [/code] reader.c [code=c] static char Buffer[4096]; static int Bend = 0; static …

hi, i am doing a project in c(linux).the topic is authenticating and authorizing the client before accessing the file from the server.i already wrote the code for creating a client and server with allowing access to 10 client.for authentication if u cant give some tips or code please do reply.

Hi, I got this code for computing permutations of a string from the programming interviews exposed book. I am unable to think as to how recursion works in this case. Now, if the input string is "hat", then I have understood the sequence of recursive calls that lead to the …

[b]Split from - [url]http://www.daniweb.com/forums/thread47395.html[/url] [/b] [QUOTE=rhp405;226272]Ok, here's the solution. When you have a pipe open in parent process, you have to close the pipe before waiting. It has to do with the file descriptor counters of the pipe ends, they have to be zeroes to not cause a child to …

Hello People, Does any one have any practice problem sets for C. I am interviewing for a company tomorrow and they ask lots of "Whats the output ?" kind of questions.. Any help would be appreciated

[code=c] #include <stdio.h> int main() { char name[50]; printf("enter your name:"); gets(name); puts(name); return 0; } [/code] hello, the above program should first print out "enter your name:", but it does not. it occurs in this way on the console: --------------------------- abc enter your name:abc --------------------------- it prints "enter your …

I am trying to be able to read in 1 000 1 1 1 as like 100011. Also when I do printf of the string program crashes. Here is my code [CODE]#include <stdio.h> #include <string.h> #include <ctype.h> #define MAX 32 int main(void){ int i; int c; char a[MAX]; char b[MAX]; …

so i have my main program which reads in a data file through the command line, and the data file is a list of names, each line consists of "last name first name" (no quotes obviously) all i want to do is print out the list of names as "first …

Could someone please advise me on how to implement fork() in a parallel processing (multiplying) of a 2d array....I have been at this for far too long.. here is my code [code] for (int i = 0; i < rowCol[0]; i++ ) result[i] = (float*)malloc ( rowCol[1] * sizeof(float) ); …

Hello, I am working on a program that takes an integer array filled from a random number generator. These values are suppose to be from -5000 to 5000, 2500 of them. Then I want to find the standard deviation of the numbers in the array. I am required to use …

(1)which are all access specifiers are applicable for class and why?

Hola, Necesito leer un valor de una variable como hexadecimal, y guardarlo en otra, pongo el codigo y quiza con eso quede mas claro. Tengo esto: buffer es un arreglo de caracteres y aux tambien buffer[i] = atoi(aux); Un ejemplo: atoi(aux) me regresa 40 entonces yo quiero que el valor …

Hi all, How can I do assign a Hex value to variable from other variable. I mean I have this: buffer is a char array aux is a chara array buffer[i] = atoi(aux); atoi(aux) return for example 40, then I want to see the value 40 on the buffer[i], but …

How can I do assign a Hex value to variable from other variable. I mean I have this: buffer is a char array aux is a chara array buffer[i] = atoi(aux); atoi(aux) return for example 40, then I want to see the value 40 on the buffer[i], but is not …

I am trying to program with semaphores and was told that I should use sem.h. When I compile, I get the error: "sys/sem.h: No such file or directory". How can I fix my problem? [CODE]#include <stdio.h> #include <sys/sem.h> int main() { printf("I am alive \n"); getchar(); return 0; }[/CODE]

How can we use volatile variable in C or C++? Anybody can some good code to understand this.

Hello there, I am a Java programmer by trade and am VERY new to C so please excuse any blatant pointer ignorance, if possible. I am having a problem with the concept of returning something but also freeing it afterwards within a method. I am implementing a stack program and …

Hello, I'm having quite a hard time getting around this access violation error I keep getting. Every time I declare a character string in a structure I can never access it. Here's a small example of my code that keeps giving me a error no matter what I try. [CODE] …

Hello! I've started programming C++ a week ago, so I cannot solve my problems easily. I've started a small project for learning classes, it's about encryption and stuff. I don't really get pointers, although I've read some about them. My problem is that when I use the cipher, it replaces …

hello to all my frnz... Actually i need 2 generate a program to find out how many processors are running at the n machines by devoloping a client server model using a unix enviroment!! i wud b really grateful if someone gives the c code for it!!! thank u:)

if i have this code: [code=c]int main(int argc, char *argv[]) { struct tm tmbuf; time_t timeinsecs; int n, rc; char req[16], resource[128], proto[16], fname[128]; char buffer[1024], dates[64]; rc=read(0,buffer,1024);[/code] how would i go about extracting the three substrings into req, resource and proto using the sscanf function? can someone please talk …

Hello I have two c files I am working on. One is a stand alone program (I will call it helper) that will take two ints as a command line argument, add them together, prints the operands and the sum, and exits. This program can be run from the command …

I have taken the opensoruce from ~wagnerr/ConfigFile.html for reading configuration file. It perfectly works fine with gcc 3.2.3 and it fail to compile with gcc 3.4.3 on RHEL 4 I am getting following error g++ -Wno-trigraphs -Wno-unused -Wno-deprecated -Wpointer-arith -fno-common -fno-strict-aliasing -fexceptions -DC_GCC_C -DC_GCCBJC -DC_GCC_CPP -fPIC -D_GNU_SURCE -DC_GNUSTEP -DC_LITTLE_ENDIAN -DDEBUG …

How to store the data of a program without using registry? Because I don't want the users change the registry and the program settings... Are there any other ways that can prevent the users from changing the settings?

I am in need of some help. I need a program that will play the game Three's Free. You roll six dice. 3's are equal to 0. Every turn you take away one of the dice, so every time you roll you take away one die. If you don't roll …

dis is a simple c program.. but while using it in borland c++ 4.5 ,, declaration syntax error is being displayed at file1.h ..why so? file1.h [CODE] #define USD 1[/CODE] file2.h [CODE] #define UKP 1 [/CODE] file3 [CODE] #include<stdio.h> #include <file1.h> #ifdef USD #define curr 46 #endif #ifdef UKP #define …

Hello , I need to pass a system (linux) result to a varaiable . Example : ... char KERNEL = system("uname"); printf(KERNEL); ... this example dont work , can you help me ?

I am getting this compiler error: gcc -g -Wall -O2 -c -o mybash.o mybash.c mybash.c: In function ‘main’: mybash.c:39: warning: implicit declaration of function ‘getline’ mybash.c:41: error: expected expression before ‘)’ token make: *** [mybash.o] Error 1 It probably has to do with something I don't remember about initializing and …

please help me find the error in this code. whenever i try to get the successor, the program gets the status access violation error. i think it's the parameter. i try using the minimum function outside the delete and it works. but when i try it inside the delete i …

I know they don't have standard ASCII values, but how do you check for them? I am making a command prompt-type interface for a text-based RPG a friend and I are making, and I would like to be able to use the arrow keys to navigate in menus. I am …

Hi! I need your help!! My teacher wants us to create flowchart with this code from turbo c : [CODE=c]#include<stdio.h> main() { int grade; clrscr(); printf("Enter Grade:"); scanf("%d",&grade); if(grade<=74 && grade>=70) printf("Sorry, You Failed!"); else if(grade>=75 && grade<=100) printf("Congratulations! You Passed!"); else if(grade>=101 && grade>=101) printf("Invalid Grade"); else if(grade<=69&&grade<=69) printf("Invalid …

Hello Everyone, As you can see, I am new to DaniWeb, and might I say this is a VERY good community. Either ways, my problem is a pretty complicated one, which I have been working on for a while now, 2-3 weeks. I am assigned by my team to create …

[b]Split from - [url]http://www.daniweb.com/forums/thread8443.html[/url][/b] How do you post each integer in a seperate line once it has been reversed?

greetings again. few more question.. [code] /*----------------------------------------- MENUDEMO.C -- Menu Demonstration (c) Charles Petzold, 1998 -----------------------------------------*/ #include <windows.h> #include "resource.h" #define ID_TIMER 1 LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ; TCHAR szAppName[] = TEXT ("MenuDemo") ; int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) { HWND …

Hello. Im new to Trie. I know it's concept but I can't declare and access it correctly. I tried making a code. It's like this. [code=c] #define max 27 typedef struct ctype { struct ctype (*letter)[max]; int counter }trie void main() { trie t; int ctr; for(ctr = 0; ctr …

Hi, I have a program that writes to a specific memory location. I can currently read the value doing this: [CODE] #define address1 0x000F0000 //this is the memory location unsigned long *val1 = (void *) address1; [/CODE] So * val1 contains what I need from the other program. Now I …

This is an CPU sheduling algorithm i.e proirity sheduling .It show some error that i can't solve please anyone correct it . its very urgent.[code]#include<stdio.h> #include<conio.h> void main() { int a[20],b[20],c[20],e[20],d[10],totaltime; int att,at,aw,awt,t1,i,j,n; clrscr(); printf("\n\t\t\tpriority scheduling"); printf("\nEnter the no of process: "); scanf("%d",&n); for(i=0;i<n;i++) { printf("\n"); printf("\nprocess: "); printf("%d",i+1); c[i]=i+1; …

Basically, I'm writing some code that will take text from some .txt files and rearrange them into other .txt files. I've written 3 functions, but ignore the 2nd one, I haven't worked on it yet. When I try to call my 3rd function, I get an error message from Dev …

hi....... i want a program in c based on any data structures with de code.plz............it shd be catchy n can be based on reality

hi all, thanks for reading my post. sorry about the tittle (so whatever ;)) i have this situation. i have an array like this: lemon banana pineapple and i have fruit.txt which has this inside: corn melon berry blackcurrent apple what i want to do is, i want to copy …

Make a C program that will ask the user to input a secret message. Your program will then encrypt and display the cipher text using the encryption formula. Also, to recover the original message, your program should be able to decrypt and display the shift cipher text. Sample Program Interaction: …

Hi guys, Would someone please let me know the difference between these two: [CODE] struct node* branch; // this statement struct node *branch; // && this statement [/CODE] Thanks.

how about this kind of pyramid? * * * * * * * ** * * * * * * * * * * * * * * * *

Hi! I'm working on a compress algorithm. But I couldn't write the software because I don't know how to read and write a file as binary like 101011111111011001. How can I read the like this ? Also I want to ask if I can write the GUI on Java and …