Notes with worthy tutorials
Declaration of one dimensional array : Like any other variable, arrays must be declared before they are used. The general form of array declaration is, type variable_name[size]; The type specifies the type of elements that will be contained in the array, such as int, float etc. The size indicates the maximum number of element that … Read more
One dimensional array: A list of items can be given one variable name using only one subscript and such a variable is called a one dimensional array. Example : int number[5]; Here in the example, 5 value of the variable number can be kept under the single variable number. Two dimensional array: When by using an array … Read more
Array : Array is a derived data type. When it is necessary to store more than one value under a variable, user can make use of array. An array is a fixed-size sequence collection of elements of the same data type. It is simply a grouping of like-data type. Different types of arrays : There are three … Read more
The flow chart of process of compiling and running a C program is as follows, Figure: Flow-chart of the process of compiling and running a C Program
Operating system: An operating system is a program that controls the entire operation of a computer system. All input/output functions are channeled through the operating system. The operating system which is the interface between the hardware and the user, handles the execution of user programs. What is operating system? Describe operating systems in brief.
Executing a C program : Executing a C program involves a series of steps. They are, Creating the program. Compiling the program. Linking the program with functions that are needed from the C library. Executing the program. Although these steps remain the same irrespective of the operating system, system … Read more
#define directive: A #define is a preprocessor compiler directive and not a statement. #define should not end with a semicolon. Symbolic constants are generally written in uppercase so that they can be easily distinguished from the lowercase variable names. #define instructions are usually placed at the beginning before the main() function.
Basic Structure of a C Program: Basic structure of a C program contains usage of all of its parts for at least once. Basic structure of a C program is different than a minimal C Program or an executable C program. A minimal C program which can be executed requires nothing but definition of its … Read more
#include directive: C programs are divided into modules or functions. Some functions are written by users and some are stored in C library. Library functions are grouped category wise and stored in different files known as header files. To access the file stored in the library, it is necessary to tell the compiler about the … Read more
Preprocessor: It is a program that process the source code before it passes through the compiler. Function: A function is a subroutine that may include one or more statements designed to perform specific tasks. For C programming functions are as building blocks. Compile time: Compile time refers to the event that occur during the compilation process. Run time: Run … Read more