[c] Forum Topics

i know some basic programming in C... now C++ is a necessity for me.... i dont have any problem with syntax... my problem is i want to know what all i must study to get accustomed to C++ i.e. the concepts that C++ has and C doesn't....

What are the best software and languages programmers jobs?(reffer to money) C,C++,Java,web languages,Maya,Zbrush,Symbian,Photoshop and others

hi to every one, I am working in AT91RM9200 microcontroller,I want to use interrupt functions in that microcontroller can someone suggest solutions, I am using C code.

I am Ram Sharma from India and it is today that I have joined this community. My Subjects of interests include C,C++ . After having gathered some basic knowledge in these subjects am now looking for some game programming looking forward for great sharing of knowledge.

I have no idea why. The lines it's skipping is the system("PAUSE");. Not the first two but the last two. [code=c] #include <stdlib.h> #include <stdio.h> int main() { char Big, Small; Big='Z'; Small='z'; printf("Z=%d.\nz=%d.\n",Big,Small); system("PAUSE"); int X,Y; X=72; Y=104; printf("74=%c.\n104=%c.\n",X,Y); system("PAUSE"); double DblNum = 123.456; printf("f=%f.\nScientific=%e.\ntestF=%F.\n",DblNum,DblNum,DblNum); system("PAUSE"); char Newline = …

consider the structure [code]struct gun { char name[50]; int magazinesize; float calibre; };[/code] i found in the site [url]http://www.cs.cf.ac.uk/Dave/C/node9.html#SECTION00900000000000000000[/url] that the tag (i.e gun) of the structure is optional.... in that case wouldn't there be a problem when we declare a variable of type struct or if we have more …

when an array is received as a parameter by a function then whatever the dimensions of the array the first subscript is specified with empty braces i.e[ ] why is it so..... what is the implication of such a declaration [code] int sort(list[][a]) { /*statements*/ }[/code]

Hello Evrybody please can anyone help or explain to me how can i find time taken for a code to execute.I have put clock in main and its working.But now i have to find time outside main.The clock statement is not working i have added clock_t start = clock(); and …

Hi, Could anyone tell me, how to convert scancode to an equivalent ASCII char. in C language. Vijay.

I am not very good at algorithms and i will have a test about backtracking these days ! I don't know where i can find the code of backtracking in C and a good explanation about it. Thanks for attention!

i find this clock() function can be used to find the execution time between two particular statements in the code.... how to find it for the entire program,,, i mean right from the time the program is loaded and other OS and compiler related stuff............

"We can also have null statements by just including a ; or let the switch statement fall through by omitting any statements (see e.g. below). The default case is optional and catches any other cases." i found these lines about the switch case statement in a site.... i couldn't understand …

Hello, Please do anyone among you know about c software execution optimization.. thanks

i found that the limits of int and short int are the same........ i just want to know then what is the need of 2 with the same limits....

Hello again people, I've got some questions about timing that I hope can be answered by someone. I'm trying to use the functions [I]getrusage[/I] or [I]times[/I], or the [I]time[/I] command to time my programs. Now I've got this piece of code that uses getrusage, and my first question is a …

i have to find two time stamps one at the begining of main and at the end of main and take the difference to find the time elapsed to execute the code in between.Can anybody suggest the programs or proper API s in Linux.

[INLINECODE]#include<stdio.h> void print_message(void); void print_message(void) { printf("This is a bug\n"); } int main() { print_message(); }[/INLINECODE] I'm using VS 2005 SP1+SP for Vista on Vista buisness and as I wrote in Title when I have functions in my programs and I start debugging F10..F11, and debugger encounter a function instead …

Greetings! My name is Waylena, and I'm a bit of a techie living with my husband and our two cats in Champaign, IL. I use Windows a lot at work, but Linux is my passion, and has inspired me to take up some programming. So far I've learned a lot …

hi.. i need help with this program. this is a program to turn 'ON' and 'OFF' 1 LED using 2 push buttons. the underline statement suppose to wait for button press. but it is alway false even i have press the button. is there any one who can tell me …

Hi.. I'm new in programming microcontroller in c. And I was given an assignment to write a simple program to turn 'ON' and "OFF' the LED by pressing push buttons. The microcontroller i'm using is PIC18F4620. And i'll need 1 LED and 2 push buttons to program this. I have …

hi i am newbie to this forum. i am interested to do projects and learn few of the languages which i dont know and increase my expertise in the known languages. If any body have projects on java,c,web design then kindly let me know. i'll try to do them. i …

Hi, I've just started data structures....I'm studying Breadth first search and depth first search algo....Though I got some idea about them but after spending hours I can't understand the exact difference between them Which one is better ?? Please help me out

ive been trying to connect my c program and a postgre database using VC++. but i cant compile it because it cant find "postgres_fe.h". and also i cant find any tutorials about this one too. When i searched google, most are for linux. if anyone here knows some links to …

I am starting out, trying to learn come C programming over the summer (I've had experience in Java for over a year) and I got a problem when I use my compiler. I am using Dev-C++ and everytime I run my program it quickly closes. Now I know I can …

Is there any other code written for a coke machine program. We’ll start by having the user “insert” their money. Since they can’t physically insert the money, we will just ask them how much they wish to insert and we will keep track of how much money they have inserted. …

Hi everybody, Can anyone among you let me know.how can i find execution time of an algorithm in my c coding!! thanks Nalini

Hi I would like to know if there is any certification in C available....like Sun certification for Java??

Hi, I have a problem with the function [code]i=(abcdario[g]+h)%27;[/code], because i need to add this, but it gives me the error "invalid operands to binary +" The full code is the following [code] #include<stdio.h> //fopen() ,fclose() #include<stdlib.h> //malloc() int main (int argc, char*argv[]) { FILE *entrada, *salida; int caracter(unsigned char …

Greetings! I'm wondering if anyone has a kqueue outgoing socket example. What I mean is something that uses kqueue and connects to somewhere (in the example, let's say 1.2.3.4 on port 1234), and then polls the socket and when it gets data, calls the function receive_data(data), with data being the …

[red][b]Shell Sort[/b][/red] [code] void shellSort(int numbers[], int array_size) { int i, j, increment, temp; increment = 3; while (increment > 0) { for (i=0; i < array_size; i++) { j = i; temp = numbers[i]; while ((j >= increment) && (numbers[j-increment] > temp)) { numbers[j] = numbers[j - increment]; j …

i'm having this problem and i would like to ask for some ideas on how i will read a file backwards, that is, from end, read the file backwards(forward, naturally) by line.. thanks

[code] #include<stdio.h> #include<stdlib.h> int main() { struct { char origin[50]; char destination[50]; char flight[10]; char aircraft[3]; char days_of[7]; char departure[4]; char arrival[4]; char begin_date[10]; char end_date[10]; }flight_details[1679]; FILE *fp; fp=fopen("iaschedule-07(edit).csv","r"); char buf[50]; int i; while( fgets(buf,sizeof(buf),fp) != NULL) { strcpy(flight_details[i].origin, strtok(NULL,",")); strcpy(flight_details[i].destination, strtok(NULL,",")); strcpy(flight_details[i].flight, strtok(NULL,",")); strcpy(flight_details[i].aircraft, strtok(NULL,",")); strcpy(flight_details[i].days_of, strtok(NULL,",")); strcpy(flight_details[i].departure, …

well can any one help me with the internal representation of float and doubles ......i know tht they are stored using the IEEE 754 format so is that the reason why a double 0.7 is greater than a float 0.7 ?????

Dear All, Many thanks for the answer of my first question though i had the answer for this from one who has already put this question forward.I have modified it and it has worked.Thanks!! Now i want to optimize my coding by adding another condition so that it doesn't perform …

I am trying to write a code that asks for the user first and last name and concatenate the function displaying the user's lastname and then firstname example: bob allen // first and then last name allen, bob // last and then first name using the concatenate function: This is …

Is this the right way to use fgets when its for non file input. [code=C] #include<stdio.h> int main() { char userinput[256]; printf("Enter a string:"); fgets(userinput,256,stdin); printf("%s",userinput); return 0; } [/code]

hi everybody.... i m piyush chandra studying in mechanical branch at rvce, bangalore, india i love c programming... i play with registries i create heals for comps affected with new viruses... i install viruses on my comp n find a way to kick them out, to help my friends whose …

Hello guys, It's been a while since I last time posted in this forum. I have strange problem regarding matrix allocation. I was asked to write code that includes 2D array dynamic allocation. I write two version of matrix allocation. Here is in my opinio relevant part of the code: …

I don't ensure whether "0" or "NULL" is better to be an empty point's value in C++. Could anybody can tell me,and why? Then how about it in C, why? Thank you!

Hiz well i m new in here n i m goin to have exam after 3 days :S i got stuckd in a question Q) Write a program to print the product of even numbers..... plz i m new with c langauge :S n i m having final exam jst …

is there any difference between [ code=c ] and [ code=cplusplus ] ? I don't see the difference except, of course, the title. If no other difference why do we need both of them ?

Hi every=one, This is in continuation to my last post. Eve after initialising the 2d pointer a, as suggested, the same probllem as described earlier persists. Plz help -Jishnu. Hello, The code below calculates the determinant of the matrix. I know that the method of global 2-d pointers is a …

I wrote this function to generate random numbers and return it to the calling function [code=c] int getCard(void) { int range; int card; srand(time(NULL)); range = (10 - 1) + 1; card = rand() % range + 1; return card; } the calling function is.... int first2(void) { int firstCard; …

I've been attempting to teach myself some C, as I have been tasked with maintaining a program written for a handheld barcode scanner that appears to be written in this language. (At least, I'm assuming that for the moment, considering the fact one of the first statements I saw when …

Hello, The code below calculates the determinant of the matrix. I know that the method of global 2-d pointers is a poor programming practice (so u don't need to reply saying that!!!), but it is a simple method for an amateur programmer. As the code didn't work, I set two …

Hi All How can we plot the pixel without using the function putpixel(int x,int y,int color) .

I am using Bloodshed C++ for my development. I have compiled the Dos console program in C and its working fine. But i want to add a icon to it instead of the windows application icon. Hope someone could help me.

hi everyone, i am working on Turbo C 3. here the near pointer is of 16 bits and the far pointers are of 32 bits. i want to know how these logical addresses of 16 and 32 bits are converted into physical address of 20 bits. thanks.

Hello everyone! I am doing Digital Compass Navigation Aids. It consists of the 1490 Digital Compass, a P18F4620 Microcontroller, ISD2560 voice record/playback chip LM4808M amplifier, 5volts and 3.3volts voltage regulators and three switches, the recording switch, the playback switch. First, i should record north, south, east and west into the …

When using loop functions or statements which loop statement do you prefer to use that would be easy for a beginner like me to use: The do while loop, for loop, or while loop. I ask because I am to re-write my code from using the If statement to using …