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 | EDIT: Please note, as I write this, the post is now 6 years old and might have some outdated information. I'd personally recommend beginners start with "Learn C the hard way" by Zed and this book since I have heard good things about them. Reading the FAQ put together by … |
| | Hello to all programmers out there. Considering the growing request for practice problems by the beginners, we ( Me, Joey, Niek, Aaron..) have decided to start a sticky which will host some common practice problems which would help the beginners in understanding the programming concepts in a better way. (Did …  |
 | [B][U]Before You Ask[/U][/B] [list=1] [*][B]Engage your brain![/B] We understand that running into a problem can turn off the rational centers of the brain, but please sit back and think for a bit about your problem before running off to find help. All too often a little common sense is all … |
 | With regard to C++ books, I'll just echo the advice here .The following books are recommended; read them in mostly the order listed." Accelerated C++ " Andrew Koenig & Barbara Moo " The C++ Standard Library " Nicolai Josuttis --- a "must have" " Effective C++ ", " More Effective …  |
| | Very early on when attempting to learn programming in C, you often do exercises that read in and print out strings and numbers. Now you might assume that C has a simple function that will get user input, and indeed it does, but there are a couple of gotchas that …  |
 | A common task in C or C++ is to get a string from somewhere and convert it to an integer. "Use `atoi`" is a common suggestion from the unwashed masses, and on the surface it works like a charm: #include <stdio.h> #include <stdlib.h> long long square(int value) { return value …  |
| | Consider the following program and input file: [code] #include <algorithm> #include <cstdlib> #include <ctime> #include <functional> #include <fstream> #include <iostream> #include <iterator> #include <string> #include <vector> #include "natural_compare.h" struct natural_less: std::binary_function<std::string, std::string, bool> { bool operator()(const std::string& a, const std::string& b) { return natural_compare(a, b) < 0; } }; std::vector<std::string> …  |
 | Hi all, I was just playing around with some ideas about optimizing a core piece of my library: the run-time type identification system (RTTI). What does that have to do with compile-time string concatenation? Well, the whole point of the RTTI is to provide information on the type of objects, … |
 | The bubble sort is slow and I thought it would be interesting to visualize the progress as it sorts an array of integers. |
| | I was asked this in an interview today: Q: `malloc(0); /* What does it do? */` It's a great question because it covers a subtlety in the standard and a condition that not many people will consider. Unfortunately, I wasn't 100% confident that I remembered what the standard said about … |
 | RestSharp library needed |
| | I am very new to C++ and have written only basic algorithms. In school we use turbo c++ compiler but now i have to attend a workshop for which I need to be able to use a gnu compiler and I do not know how to change my programs for … |
| | This is a catalogue of some experiments on just two aspects of undefined behaviour. This was inspired by yet another long bout of explanation in a recent thread, so I thought it was time to dust off a bunch of compilers, and compare. This is the test code. [code] #include … |
 | You have a problem with your code. You need help. You are in a hurry. What can you do? Post for help at Daniweb as fast as you write, correct?. Wrong. The first thing you should do is to read the rules on posting and specially how to properly make … |
 | From https://www.reddit.com/r/ProgrammerHumor/comments/wupbvb/python_runtime/  As time passed it looked to me that Python evolved past a C framework.  |
| | How do I process the xamarin forms that connect to SQL Server and export data to the listView ? I'm looking for this simple example. What do I find on google ? |
| | [B]Intro[/B] This tutorial provides a brief introduction to the random number functions that come as part of the C++ standard library, namely rand() and srand(). [b]rand() and RAND_MAX [/b] The C++ standard library includes a pseudo random number generator for generating random numbers. In order to use it we need …  |
| | If you have any ideas for a code snippet you'd like to see, please post them here. We can't depend on the snippet writers to come up with all of the ideas, can we? ;) |
| | Howdy all. I've recently been considering doing an online meeting or webcast on certain subjects for which I have a lot of experience or knowledge. The idea being that something too long or complex for a Daniweb article can be more easily shown by sharing my desktop and talking about … |
| | I was going to post this in a thread, but it turned into something a bit more serious and may be useful as a code snippet. The code shows three files: * menu.h: The header file for the menu library. * menu.c: Implementation of the menu library functions. * main.c: … |
| | So you want to find out which day of the week you were born. Well at least some of us do. I actually wrote this program because my whole family was born on Sundays, and my friends didn't believe it! An oldie but goodie, moved from DeSmet C to Turbo …  |
 | Below you'll find a small program. The challenge is to predict the output of the program, then explain why it gave the output it did. using System; using System.Collections.Generic; namespace Sample { class Program { static void Main(string[] args) { MyStruct a; a.a = 1; a.b = 2; Dictionary<MyStruct, int> … |
| | please help me with the code behind file..as i am really confused...otherwise give me some tips to start doing the code |
| | In answer to a coworker's question today about memory management today, I wrote the following code. It's an implementation of the gets function that accepts an infinite length string (bounded only by the heap) and [i]does not[/i] force the caller to free the resulting pointer. I figure that it's a … |
| | c program to implement a stack using two queue |
 | [QUOTE]This discussion has been moved from [url]http://www.daniweb.com/forums/thread284115.html[/url]. Check there for the beginning.[/QUOTE] = = = = = = = = = = = = = = = = = = = = Actually neither approach is wrong. The original code does not store prime numbers but does correctly identify all … |
 | I have recently started to write my own tiny little electronic-book. This e-book is not about teaching C++ from ground up, but it is a collection of C++ pieces that I have learnt during these past few years that I want to share with everyone. I call this e-book "[B][I]C++: … |
| | Hello im working on a C program that counts the number of tabs, blanks and newlines. Here is my code: [CODE] #include <stdio.h> #define MAXLENGTH 500 /* This program accepts a string as input. * It should then count blanks, tabs and newlines. * It should print out the number … |
| | I have been asked to program a spellchecker in C for an assignment. I am quite new to C and programming in general, so I have decided to start by writing a program that does the following: [LIST] [*]Reads words into an array from a dictionary text file. [*]Reads words … |
| | Several methods of reversing the bits of a byte are presented here. [i]Note that not all of the methods are portable.[/i] |
| | [B]This is just a linked list program for those who need help understanding the fundamentals. Put comments if you find some bugs. The program is about maintaining a student database (their roll number and their age) I've used Turbo C++ 4.5 as the compiler[/B] :icon_cool: |
| | Hello friends and gurus, this is my first post here. i have few basic C questions. is sizeof an opearator(i actually studied it as a operator but then not so serious about the things) 1.why is it called as an opeartor? 2.sizeof is compile time operator. what does that mean … |
| | This is a scheduling algo based on round robin scheduling. |
 | [I]<<snip>> [/I] Original article can be found here: [url]http://www.cs.cmu.edu/~gilpin/c++/performance.html[/url] |
| | good day - I am wondering if anyone can explain to me how to allow the user to change the name of the tabs in a tab control via a textbox? For example, at runtime the user will be able to change the title of the tab ("TabPage1") to "Baking" …  |
| | I am trying to enter a single string in C++ in which I give a URL citation. the entire line is as follows: cout << 'furey, edward "sphere calculator" at https://www.calculatorsoup.com/calculators/geometry-solids/sphere.php from calculatorsoup, https://www.calculatorsoup.com - online calculators' << endl; I am getting the error: character constant too long for its … |
 | Hello all. I'm relatively new to libcurl C++, and I have been hopelessly stuck. Bit of a background for this app. It is very legacy, having been made in the early 2000s. LPSTRs abound. It looks in FTPs for files from suppliers (who have an SFTP they interact with and … |
| | I am writing an atm program for a class and will enclose the instructions. I really want to just write a section of code and make sure I am doing it right before I move on. I am starting with the main menu and was wanting to know if someone … |
 | Anyone can help me? Create a C++ program that will contain a function to sort an array of 5 integers in ascending order, in which the function returns a pointer that points to the sorted array. |
 | Hello everyone, I've been using this website and it has helped me with it's hundred of solved cases, but I couldn't find one appropriate for this one. I have created a Menu() function that looks like this: [CODE=C]int Menu() { int i; printf("MENU\n\n"); printf("1 - ...\n"); printf("2 - ...\n"); printf("3 … |
| | #include<iostream> #include<conio.h> using namespace std; struct marks{ int phy[10]; int math[10]; int chem[10]; }; int main(){ struct marks m[20]; int i,n; cout<<"Enter the number of students : " << endl; cin >>n; for(i=0;i<n;i++){ cout<<"\nEnter Physics marks: " << endl; cin >> m[i].phy; [error here] cout<<"\nEnter Maths marks : "<< endl; …  |
| | can anyone help me to make an app |
| | Hi all few free tutorial sites for beginners are given below. C PROGRAMMING http://learnermode.com/c-tutorial/ C++ pROGRAMMING http://cplusplus.com Java https://docs.oracle.com/javase/tutorial/ C# https://msdn.microsoft.com/en-us/library/aa288436(v=vs.71).aspx Python https://www.tutorialspoint.com/python/ Java Applets http://learnermode.com/java-tutorial/applets/  |
| | [CODE]#include <stdio.h> #include <stdlib.h> #define SIZE 31 int main() { int array[SIZE]={0}; int i,j; int startDay=0,numDays=30; printf(" S M T W TH F S\n"); for (i=1;i<=1+ startDay*5;i++) printf(" "); for (i= 1; i <= numDays; i++) { printf("%2d",i); if ((i+startDay)%7 > 0) { printf(" "); system("color 6");} else printf("\n "); …  |
 | Well we all have seen the common questions on creating squares and hollow squares out of asterisks in C++, but how about creating a program that prints out a circle in asterisks? Obviously this would look like an oval due to line adjustment, but it would be quite interesting to … |
| | Following is a matrix multiplication code written in MPI (Message Passing Interface) which could be run on CPU cluster for parallel processing. This has been successfully tested with two square matrices, each of the size 1500*1500. |
| | Write a C program to Remove even numbers and fill it with zeros. Note: You can use only one loop for your logic. Two variables apart from the array. Input array 1,2,3,4,5,6 Output 1,3,5,0,0,0 |
| | I have joined the thousands who have done it before, and have compared a number of sorting routines. The sorting is done on the same random-integer arrays. No surprises, quicksort wins this simple comparison hands down. There are clever combinations of sorting routines that are faster, like the snippet by … |
 | Often times it is useful to instrument a program you do not have the source to in an attempt to learn more about it. This can be for debugging purposes, blackbox testing, or for providing alternate versions of common functions/libraries (to name a few). On Linux, there is a very … |
| | Sir, I wanted to know the implementation code for krushkal algorithm in C++. Anyone can help me to give the code. ThnQ  |
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