C Programming Tutorials

C Programming Tutorials And Articles
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In this article I'm going to show you how to change value of variable during run time. There are many tools around how to do this easily, but I will focus on the way doing it programatically, specifically using C language. Tools I will use: Cheat Engine 6.0 Here is a simple code for login, I...
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EIP ( Extended Instruction Pointer ) is a register that points to the next instruction...It simply points to the address in which that instruction is placed...So if we overwrite this we can change the direction flow of the program and make it do what we want.... In other words if we overwrite...
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Processes are the primitive units for alocation of system resources...Each process have their own address space and usually one thread of control. The process which makes another process is called the parent and the process which it makes is called a child process..As we know every process have its...
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Article is originally written by Zeeshan Amjad Introduction Here I am going to give a detail about Recursion in C++. Definition: Recursion is the process where a function is called itself but stack frame will be out of limit because function call will be infinite times. So a termination...
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Dev-Cpp is an application which is used to code and run programs in C/C++. It has its variations but none of them come with a pre-installed graphics library. So if you are switching from some primitive editor like TurboC to Dev-Cpp (which follows ANSI specifications correctly) and try to write the...
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Newton Raphson Interpolation Formula implementation in C. #include <stdio.h> #include <conio.h> #define N 100 float comb(float,int); /*****************************************************************/ /***** Newton-raphson-interpolation formula implementation *****/ /***** This...
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A simple code of Http-Web-Server in C done by a beginner level programmer. Please suggest if you liked it and lets make it better !! Hows that!!! The Code #include<stdio.h> #include<string.h> #include<arpa/inet.h> #include<netdb.h> #include<sys/types.h> #include<sys/socket.h>
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There are a certain functions in C, which if used in a particular combination may cause problems. These problems are due to the conflicting behaviors of the functions. In this article, we will understand the problem caused by using one such combination of functions scanf() and fgets()/gets(). ...
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I wanted to make a remake of my previous BAD versions of these 2 functions. I think they are working great now, and they're portable the same as the originals from STD library. ATOI /** // By 85 // boyscout_arg@hotmail.com // etalking.com.ar
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Stack is a LIFO abstract type of data structure. The stack is mainly associated with 2 types of functions Push() and Pop(). Push() adds an item on the top of the stack and Pop() removes an item from the top of the stack. Implementation of Stack stack.c #include<stdio.h> #include<string.h>...
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Introduction The Source code that follows is for Tetris using BGI under Turbo C/C++ DOS compiler. It is still in the preliminary stages of development and there is a long way to go. Now, this is a demo version where the user isnt supposed to 'play' the game but be a mute spectator - it just...
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I wrote a program in C for matching patterns among 2D matrices. In brief, the program accepts a SUBSET matrix & a SUPERSET matrix as I/P from user and helps verify whether the SUBSET matrix is present within the SUPERSET matrix in a continuous manner (provisions have been made for detecting row...
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The Need Most of our articles over here are focused on Linux programming. However, many of us, especially beginners are still comfortable and much used to Windows environment, the look and feel of it. And also,many out of them tend to avoid Linux programming because of the pain of installing...
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Generally a question is asked that if you have given n bits then print out all the possible binary numbers of n bit and so I will try to explain how to get that done. Please don't Copy Paste. Understand The logic because it is useful in other problems as well for eg if n=1 then you can have 0...
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Note : The following source will only work with non-chunked encoding servers...The servers which have enabled the encoding set to chunked will not properly work with this source... And I assume basic knowledge of SOCKETS UNIX API and C language as prerequisites... Source #include<stdio.h>...
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Memory Segment Whenever U create a program and load it on a CPU ie executing UR program. It loads a Process Page on the virtual memory of UR system.That Process page will be mapped to UR Task Struct which will be in UR Process Control Block PCB. ...
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As the topic says, self printing programs are nothing but they reproduce themselves as output. Such programs are referred as Quines from the name of the logician Willard van Orman Quine who introduced the concept. I said an 'Ah!!!' when I heard about Quines for first time, spent more hours to...
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What are Hash Tables? Hash table is a data structure to store key value pairs for all situations. So it is like a table with each entry has a key and a value corresponding to it. So, it is an efficient way of mapping and accessing data. An abstract illustration of hash table: -> Data...
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Being a Linux system programmer there are numerous situations when one needs to deal with files kept on disk. Like opening a file, reading a file(one character at a time, one line at a time, the whole file at a time), seeking in a file and then finally closing it. One can use various library...
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If you are an experienced C/C++ programmer then you must have definitely observed some weird behaviors of code in certain situations. These weird behaviors can be due to various reasons but most of them are because of stack corruption. For all those who have no idea about what stack corruption is,...
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