[c] Forum Topics

I am compiling the code with icpc command and I want to change the color of specific text in the program. How can I do that?

Hello, I have a program where after you login, I need it to re-design the whole window. Is there a way I can change the WndProc to make the code cleaner. Thanks. I have a case for the login if successful, so it will be put in there.

I am trying to write an function, which takes an string as input and do something and return the strings. Here Is a small try from my side. [CODE] #include<stdio.h> char algo(char n) { char result[15]; if(n=='1' || n=='2' || n=='3' || n=='4' || n=='5' || n=='6') { result = …

Hi there, i m working on dining philosopher problem , i wrote some codes but i keeps giving some error like : "/tmp/ccMEjOtr.o: In function `philosopherRun': betterDiningPhilosophers.c:(.text+0x7a): undefined reference to `pthread_mutex_trylock' /tmp/ccMEjOtr.o: In function `main': betterDiningPhilosophers.c:(.text+0x54d): undefined reference to `pthread_create' collect2: ld returned 1 exit status " even i try …

ok i have this project that i have been working on to fin harmonic,powerful,amicable and perfect numbers i have a few but im at a road block right now and would love some assisstance. [B]POWERFUL NUMBERS[/B] [CODE]#include <iostream> using namespace std; int main() { int endRange = 500, var1, var2, …

hey guys, as well all know, C rounds downwards, anyway, i'm trying to write a function that would make it round upwards, and got something like this: [code=c] int round_up(float x) { int y = 100*x; double z = 100*x-y; if(z>0) y = (x+0.01)*100; else y = x*100; return y; …

Hey everyone, I'm a program newbie, I'm writing a code for sorting numbers from a input file, qsort(array, array_size, sizeof(int), (*compare)(const void *, const void *)); since the array_size may vary for different file, I can't just use int array_size= some # How would I write this? Thank you very …

i heard there is no iostream or iostream.h in the dev c libraries

I have two for loops that I would like to convert into while loops instead. This is the entire code of the program. This program simply asks a questions and determines whether the input is a yes or no based on the first character of the line. [CODE]#include <stdio.h> #include …

I am busy to make a program that starts with a menu, where you can choose different options. One of these options to execute a program. for example : download software in an flash-prom with loader.exe loader idpartno.sr(where idpartno.sr is the code to be downloaded. Thanks for helping.

Write a C program that accepts 3 parameters. Each parameter indicates the quantity of product to be produced. Each product will be produced in different production line. Ready products will be placed in a buffer area located at the end of each production line. Packaging workers will pack the products …

Hi, I'm a newbie............ Sorry, if I violate any norms. Is it possible to copy any audio file or image file using C language? I think it is possible. If anyone knows it please guide me. If you know the code, that 'll be helpful.

Hi everyone, I am a newbie in C programming. I need to make an implementation of gets() function from stdio.h, but I am not sure where to start. Please advice, any help is welcome. Thank you, Brian.

hi i have done a project with graphics(winbgim) on dev c++....suggest me a software for creating a front end for my project...should be easy to use.....thank u

hi With the help of below program i try to print out different combinations of characters but when i compiled it i got some problem with it can anyone please help me with the errors in logic with the program [CODE]#include <stdio.h> #include <stdlib.h> char CharList[] = { 'a', 'b', …

Hi, I don't understand the portions I put in bold in this function for converting Fahrenheit to Celsius. The texts are "FtoC." I am guessing "FtoC" is a variable; I really am confused about why "to" is in there. What does the paranthesis (float f) indicate? [CODE]#include <stdio.h> float [B]FtoC[/B](float …

Hi, I have a python simulator file sim.py. I need to start, stop and restart this simulator from a C/C++ test file test.cpp. I tried using system( "\sim.py" ) in my test file. This starts the simulator but in the same window as test.exe. In this case how do i …

Please inform me can we use C programming in all OS of Mobiles . Like J2ME, Symbian, I Phone, Apple..

Basically, I formulate the website name using the version information ( IDE codeblocks SVN 6088, using autoversioning plugin ) and launch the website using *gasp* CMD... the problem is I don't want to launch a web page because ... i just want to check for updates... Also I don't really …

Hi all, I've been working with C semaphores for a while using shared memory (ftok, semget, semop, semctl) and it works perfectly. However, I was wondering wether using these structures all processes are protected against starvation. I have made several tests with nearly 200 processes sharing a binary semaphore and …

Hey guys, I've got a struct array in a header file and at least two pieces of code that access that array. How do I schedule access for read and write events to that array. Where do I place my mutex_lock & unlock code? Thanks for your help, Tom header …

Hi everyone, I'm trying to get the current time with this function and it's working fine, but, I'm getting the following warning when I compile with gcc 4.4.3 on Linux: [B]warning: incompatible implicit declaration of built-in function ‘strftime’[/B] I've tried using literals for maxsize and format, but that didn't help. …

gcc supports an extended precison "long double" type typically 10 or 12 bytes but Windows XP always maps the "long double" to the standard double (typically 8 bytes) MinGW on windows XP thinks it has a 12-byte "long double" but in fact it only has the 8 byte support on …

the program is showing the output perfectly but the value of [iCODE]a[/iCODE] is printing more than once. for example, if i enter range from 10 to 20 , the output should be 11,13,17,19 but the output is 11,13,13,13,17,17,17,17,17,17,17,19,19,19,19,19,19,19,19,19 how can i fix this ? [CODE]int main(void) { int a,b,c,d,f; clrscr …

I am a beginner trying to write a program for my intro C class. I am trying to write a program that calculates the combination of numbers given a specific output by the user. The number has to be between 1-10 to be valid. I am not allowed to use …

i also find the same problem , i am trying to do this because my project required to do this so the normal user can't terminate it, please any one can have any idea how to do this pls reply soon

I am writing a c program to copy content of one text file to another but with the copied lines in the destination file preceded by the length of the line and a blank space. Let me illustrate my expectation: original.txt destination.txt daniweb 7 daniweb forum 5 forum plz help …

hello, is there any way to call a specific variable from a function ? see the following program. [CODE] float abc(void); float main(void) { float a,b,y,z; a=abc(); b= printf ("enter value for z"); scanf ("%f",&z); y=(a-(a*y))/(b*z); printf ("%f",y); } float abc(void) { float x,p; scanf ("%f",&x); p=x*x; return(p); }[/CODE] in …

I dont even know where to start with this program. I have been really busy and he tells us what to do. If anyone could help with this it would be great. here is what it says to do ASSIGNMENT DESCRIPTION This program will simulate the card game WAR!. The …

Hello, I have been trying to setup mysql API with C. I followed tutorials but I don't think I am installing the API correctly. Could someone tell me the package to download, and what to do with it. Thank you very much.

I have a file name fun.c contain the fuction to add two number (addnum(a,b)).Now I create another file name callfunc.c.Here I want to call the function (addnum(a,b)) from the file fun.c. How can I do that?.

I've learned to write bytes from a file by reading the entire file into a character array and then writing them out to another file using fwrite. Of course, my teacher told me this is both wasteful and a file might not fit into memory, so I should use another …

I'm going crazy. I've been trying to a linked list of a struct (which stores some strings and a character) however I've had no luck. It's just not working and I've been working on this for hours on end. Note: StorePtr is a pointer to the Store struct (which stores …

I'm writing a program to read data and store it to file. However I am a bit confused by the EOF statement, and how to get my program to stop reading when there is no more data to read. My code looks like this [code]while((c=fgetc(fin2))!=EOF) { if(c=='#'){ while((c=fgetc(fin2))!='\n'){ }} else{ …

im writing this program for an intro to c class, I was wondering if anyone knows whats wrong with this code? it says theres an error with the first else, if i take the curly brackets out it says theres a problem with all 3 else's. Thanks. [CODE]#include <stdio.h> int …

There are many inbuilt functions for drawing lines in turbo c..is there any similar functions in ncursers library.....please tell me some equilvalent functions for setfillstyle() in the ncurses library. Thank u

hello friends can anyone please help me with a C version of a brute force cracker in which i can compare with a selected string and identify for a match.. the c version is in the link bellow [url]http://www.daniweb.com/forums/thread121991.html[/url] cheers

Are there any functions built in C to display the current time and date, and if there is could someone display its syntax Thanks.....

Hi, I am working on a small program that converts English to Morse code and back into English. The input is read from a file specified by the user no matter which way the conversion is going. I figured out the english to morse conversion pretty easily, by just reading …

Hey ppl, I'm doing a project which needs serial communication. I'm sending and receiving data from a PIC through the serial port. I'm using Windows XP and dev cpp. I'm succesfully sending data by my program to the PIC. I'm using inpout32.dll file to access serial port because windows dosen't …

how to go about tis program [CODE]int array[26] for(i=0;i<=25;i++) { array[i]=`A`+i; printf("\n %d %c "array[i],array[i][/CODE]

Hi, I am developing a client and server in C. Client encrypts some data and sends it to the server. The server receives the data and prints it out. I am using AES 128 bit encryption in CBC mode. But at the server side I am unable to receive any …

Hello Guys, I have found many source codes to implement linked list. But all are inserting or deleting the node values after user's choice. I dont want that. Insertion should happen dynamically. I have a client program running on another system. I fetch the data from that system through my …

hi can anyone tell me how to use the bgi library for windows in code blocks compiler...i have downloaded the libraries but dont know how to use it...please tell me the procedure

Hi im trying to allocate memory using malloc(). Also, im trying to make a copy of the string before i allocate it. So im using strcpy(). But im still having issues with compiling it. please help!! [CODE] #include <stdlib.h> #include "setup.h" char *run( const char * const str ){ strcpy(str) …

Write a C program that accepts 3 parameters. Each parameter indicates the quantity of product to be produced. Each product will be produced in different production line. Ready products will be placed in a buffer area located at the end of each production line. Packaging workers will pack the products …

Hi all, I thought I would do the right thing and introduce myself. My name is Martin, I am getting old in the tooth at 42 and thoroughly enjoying the process. I like a wide range of music, from pop to classical but do enjoy a bit of JAM and …

Hi all, This is a script that reads in text from a file and separates it into characters. It works fine as long as MAXSTRLEN is under 610000. However, I need it to read in whole books of text. Whenever I try to bump that number up above 610000 or …

Dear all, I am writting a code for high dimensional chebyshev interpolation. Since it is high dimensional, I MUST use extremely large arrays. Something like this: [CODE] #define DIM (int)2 #define TOTAL_STEPS (int)30 int main(){ double *a_data; long long a_dim; /** length of matrix a_data **/ int n; /** # …

I want to hold user input strings in an array and be able to print it. Is there a way for me to hold string 1 in arr[0], string 2 in arr[1] and so on and so forth? heres what Im thinking [CODE] int p=1, r=3, l=0; char arr[255]; while(p …