19,876 Topics
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 | You have a block of platinum that can be exchanged in your bank either for cash or for smaller blocks of platinum. If you exchange a block of m grams, you get three blocks of weight m/2, m/3 and m/4 grams each. You don't get any fractional part, as the … |
| | c program to print table of a given number by user defined value |
| | Ok, so I have been trying to google the heck out of this thing to absolutely no avail and I'm really and truly stuck! The assignment, as posed to the class by my operating systems concepts teacher, was to start work on creating a file system. To begin with, he … |
 | which programming language can i use to program the sim card and compile it with micro controler?  |
| | So I have this programming assignment I'm doing for my structured programming class (using the C language) that gives me a segmentation fault error. I rewrote the assignment in C++ and it worked fine, but since the class uses C, I must get to the bottom of this and submit … |
| | i know c++ and java, i want to know how to make applications using c language.  |
| | Hi I'm using C# to work with AD (Win 2012R2). We are syncing AD users,groups and their relationship to SQL database. Full sync works well. But when using synchronization cookie, the relationship changes does not detected. What may be the reason? Thanks. Here is my code: public void DirSyncChanges(DirectoryEntry de, … |
| | I'm attempting to make a C program that builds a concordance from a piece of text. I need my program to: 1. read the text consisting of one more lines from standard input. 2. parse the lines into individual words and store each word in lower case into a word …  |
| | This is just a little example of howto make a Gtk+ application go fullscreen. This is really useful in game programming. Please rate/comment/report errors :icon_mrgreen: |
| | I am using a priority queue with a double as the priority. I am guessing this is cause so issues. I used these numbers first with no issues. 34.365681 34.481879 34.539832 36.715120 I then used these numbers and had a segmentation fault. 45.411042 40.481879 37.702110 38.951187 struct PRIORITYQUEUE { int …  |
| | I was reading this example of Priority queues and have several questions. http://matrixsust.blogspot.com/2011/11/basic-priority-queue-in-c.html #include<stdio.h> #include<malloc.h> void insert(); void del(); void display(); //How exactly do structs in structs work? Do you need to do anything special with them? Is this a //form of a linked list? Which part of this is … |
| | please guys look at the code below #include <stdio.h> int main(void) { enum days {monday=1, tuesday, wednesday, thursday, friday, saturday, sunday}; enum days today=monday, tomorow=today+1; printf("\n today is the %d day of the week\n", today); printf("tomorow is the %d day of the week\n", tomorow); printf("\n today is %s and tomorow …  |
| | The father of C++, Bjarne Stroustrup took part in a live Q&A via Google Hangout-On-Air. The Q & A was moderated by Patrick S, one of the moderators from the C++ Google+ Community, and Brad Y., of Pearson Ed/InformIT. The Q&A session was a public event. PS:This is not your …  |
| | Good Day, I really need your help with this program. Question: FIFA 2010 Group match During the world cup, 32 of the best teams fight it out for the coveted world cup trophy. The teams are placed in eight groups of four. In each group, the teams play each other …  |
| | I am trying to cast an int value in a struct to a double. I am guessing I am screwing up the parenthesis somehow. I wasn't able to find anything useful in the forum or in google. struct START { int x; int y; double heuristic; }; struct SHAPES { … |
| | Hello! Can you help me please. I am a student and i have some problems with one task. I had to write a program for an embedded system which will have 8 buttons and will show on 7-segment display the number of the button pressed last. I wrote the program … |
| | Hello! I want to make an array[4][4] board and print two random characters("*" and "-" ) on it. Can you please help me? Thanks in advance. |
 | The below post is just something i thought of contributing here for young( or old ) members starting out in C. In (effectively) 3 lines of code , i hope to give an intro about pointer arithmetic and how endian-ness in windows affects the output. #include<stdio.h> int main(void){ int a … |
| | Hi all, For my project I have to send data from dos computer to a IP address ( i.e 216.152.xx.xxx port 57. I have no idea how to accomplish this task. PC is connected to internet. I can do this using microsoft windows. But i dont know how to do … |
 | Came across a code that's working but cannot figure out why #include<stdio.h> #include<stdarg.h> void fun(char *msg, ...); int main() { fun("ABCDEFG", 1, 4, 7, 11, 0); return 0; } void fun(char *msg, ...) { va_list ptr; int num; va_start(ptr, msg); num = va_arg(ptr, int); num = va_arg(ptr, int); printf("%d", num); … |
| | Hello, Everything in code when well there is a small problem on display output: when I run the file this is the output i got 69 6E 74 20 6D 61 69 6E 20 28 29 20 7B 7D 0A my teacher have 0000 : 69 6E 74 20 6D … |
| | ABC Bank gives loans to its customers at a monthly interest rate of 0.75%, and recipients are expected to make fixed payments every month. The bank uses the formula below to keep track of the remaining balance recipients owe after each monthly payment. where: Balk = balance remaining after the … |
| | I have a 1000x24 matrix in a text file and i want to sum the adjoining columns of the whole matrix e.g. col1+col2, col2+col3, col3+col4,... col23+col24 and store these values in a separate text file. My code runs like this: #include <stdio.h> int main() { int i,j; float a[100][24]; FILE … |
 | from reading these site: http://www.catch22.net/tuts/flicker-free-drawing i understand that i must avoid the pixel been changed more than once and a double-buffer: //how avoid the pixel be changed more than once: case WM_ERASEBKGND: return 1; //for other controls, we must use another messsage(see the child control messages) and heres how we … |
| | I need some ideas on my array of struct implementation. This is what I have in my structs. I plan on making SHAPES an array because I will have multiple SHAPES. Each shape will have multiple x and y coordinates. Because of this I'm not sure if should make a … |
 | Hi all, I have a problem where i need to find to what library my code links to. Here is the scenario: a) I have two executables. Both link to pthread. But pthread seems to behave differently. b) I am not sure that they are linking to the same version …  |
| | I am trying out friend functions in different files to see how it work. However, I am having problems compiling it with error after error. Well now I'm done to one error again, please have a look at my code: /* ---------- classOne.h ---------- */ #ifndef CLASSONE_H_ #define CLASSONE_H_ #include …  |
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 | I'm using the following swap function to swap two elements of an array. The element pointed to by 'x' and 'y' and the one right below it, to be particular (then i want x and y to point to the second of the swapped elements, hence i use auto increment). … |
| | Hi guys!, I have a code here having a problem about double and I'm kinda lost so I don't know what to do. btw thanks for reading my thread, I would greatly appreciate if you can help me fix this thing. #include <stdio.h> #include <conio.h> #include <string.h> #include <stdbool.h> #define … |
| | Hi, I'm facing some problem while returning string. I want to return final string value and print it. Below is the code that i tried, int main() { int Input = 0; //Tried using tmpstr also //char *tmpStr = NULL; scanf_s("%d", &Input); //Tried as below also but it was crashing … |
| | Hi! Few days ago, I had learned C language. It took me almost 8 to 10 months to learn the whole language. Now I wanna want to make real world applications using it. I'm an Ubuntu user or more generally a Linux user. The point to ponder is that I …  |
| | i continue with problems for use a callback function in a class member :( class Timer { private: typedef std::function<void(void)> timerprocedure; timerprocedure tmrprocedure;//can't be static int MilliSecondsTimer; bool blnDestroyed; UINT TimerId; HANDLE Timer1; static void CALLBACK MyTimerProc( HWND hwnd, UINT message, UINT idTimer, DWORD dwTime) { tmrprocedure();//call the lambda timer …  |
| | I'm trying to make a calendar out of C. I need it to be able to promt the user for a month, and the year, and it should then print the calendar of that. So far the code I've got is: #include<stdio.h> int days_in_month[]= {0,31,28,31,30,31,30,31,31,30,31,30,31}; char *months[]= { " ", … |
| | 1.Input three unique numbers and print the different of the highest and lowest numbers. 2.Input three integers a determine if there are equal numbers . If There are equal numbers, print the product of the equal numbers, Otherwise print the average of the numbers. 3.input three unique numbers and average … |
 | Just started learning about buffer overflow attacks and had a question regarding something in this https://www.youtube.com/watch?v=EcMCiFwHnjE/ video. Why does the person write `jmpesp()` function (~1:38)? The function is never called anywhere in main so how does it appear on the `objdump` (~3:15)? Also, what is the point of the `jmp …  |
| | Good morning. I would like to ask for help on our FINALS PROJECT. Our professors told us that he have given us everything we need but we don't have any idea. The requirements are : A.Adding of Records. -User should be allowed to enter a maximum of 15 record. -However, … |
| | Any Turbo C programmer out there that are capable of doing this for me :D I cant figure this out :D thank you and God Bless :D  |
| | I dont know how to program in Turbo C, My brother need a Hexadecimal Converter that's programmed in Turbo C ( Hex to Bin Hex to Oct Hex to Dec? ) |
| | I dont know how to program in Turbo C, My brother need a Hexadecimal Converter that's programmed in Turbo C Hexadecimal to Binary Hexadecimal to Oct Hexadecimal to Decimal ) Thank you for your help :D Good Bless!! |
 | I'm having problems with this program. Everytime i enter a fractional decimal number, it displays -0.0000 or sometimes garbage values. Ex: Enter any fractional decimal number: 5.7 -2.888blah blah blah garbage another Ex: Enter any fractional decimal number: 25.7 -0.000000 #include<stdio.h> int main(){ long double fraDecimal,fraBinary,bFractional = 0.0,dFractional,fraFactor=0.1; long int … |
| | tel me the difference between binary and unary operator  |
 | Alright so I am getting a weird problem with the following code int toDB[2]; int fromDB[2]; char * param1; char * param2; err = pipe(toDB); if(err==-1) { printf("Error on pipe creation: %d\n", errno); exit(1); } sprintf(param1, "%d", toDB[0]); err = pipe(fromDB); if(err==-1) { printf("Error on pipe creation: %d\n", errno); exit(1); …  |
| | quick question how can I work around this char * dat = "08/11/2014"; char test[10] = dat; I need to be able to take a string and put it into an array of chars, how can i do this? |
| | How do I use pipes to communicate with another proccess that is being run using an execl command? I know how I can send info to that process but how do I get info back from that proccess? Some more information on what Im trying to do: I am trying … |
 | Hello, i'm new to C and i have no idea why i'm constantly getting 2293532 as the output value of %d. Any help is appreciated, thanks! #include <stdio.h> #include <stdlib.h> int main(void) { int friends; printf("How many friends do you have? \n"); scanf(" %d", &friends); printf("You have %d friend%s", &friends, … |
 | I've been reading 'Learn C++ By making Games' and it uses the SDL library. The problem is the book has poor code examples, a lot of them don't even show the #include <libraries> instead jump straight to the main() function. So I just ordered the book 'Linux Graphics Programming with … |
| | i'm very confused and the others forums make me more confused :( i'm using string, so i need convert string to WCHAR*: const size_t len = filename.length() + 1; wchar_t wcstring[len]; swprintf(wcstring, len, L"%s", filename.c_str()); Gdiplus::Image img2(wcstring); the img2 read the file normaly, but i'm creating another Image variable in …  |
| | I am trying to learn C++. I wrote a little calculator using class to see if I can do it and give some practice. The following is the code: [CODE]#include <iostream> using namespace std; class Calculator { float a, b; public: float add(float, float); float subtract(float, float); float multiply(float, float); …  |
| | Hey guys im trying to work on this assignment i have. I am new to programming and this is my third assignment. Any help would be appreciated. Im not sure if im on the right track or not. here is what i have to do: allow the user to enter … |
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