C Programming Bit Field In this chapter you will learn the use of bit fields in C programs. Memory can be exploited using bit fields. Suppose, your program has some TRUE/FALSE variables which are categorized by structure variable and this structure variable is named status. For example: This structure variable will require 8 bytes of space in memory. […]
C Programming Bit Field Read More »
In this chapter you will learn about type casting. Type casting allows you to convert data from one type to another type. C type casting One data type can be converted to another data type through type casting. For type casting in C programming we use cast operator and it is expressed by (type). C type casting syntax
Since C programming has no direct support for error handling, but being a system programming language, it provides access to lower levels based on the return value. For any error, most C or even Unix function calls -1or NULLreturns errnoset as the error code. It is set as a global variable and indicates that an error has occurred
C Programming Error Handling Read More »
In this chapter you will learn how to work with C programming enumeration. Besides enum, you will also know where it is commonly used in C programming . C Programming Enumeration In C programming, enumeration is a user-defined data type that consists of integral constants. enumThe keyword is used to define the enumeration . Here flag is user defined data type And constant1 , constant2 ,…., constantN are values
C Programming Enumeration Read More »
In this chapter you will be introduced to the C preprocessor and macros . Besides, you will learn to use pre-processors like conditional, pragma, line control etc. in your program. C Preprocessor and Macros C preprocessors are macro preprocessors that allow you to define preprocessors in your program and that transform your program before compiling. This transformation may
C Preprocessor and Macros Read More »
There are many types of functions in C programming for handling file input/output (I/O). In this chapter you’ll learn how to handle C’s standard input/output using functions like fprintf(), fscanf(), fread(), fwrite(), fseek and more. In C programming, a file is a place on your computer’s physical disk where data is stored. Why is the
C Programming File Input/Output Read More »
In this chapter you will learn about unions in C programming. More specifically, learn how to create, access, and differentiate between unions and structures . C Programming Union In C programming, unions are completely similar to structs . Unions are derived data types like structures. Defining a union in C programming is very easy and is exactly like a structure. Instead of
C Programming Union Read More »
In this chapter you will see some examples of passing structures as arguments to functions and learn how to use them in your programs. How to pass structure through function in C programming? In C program structure can be passed through function in two ways: Passing by value Passing by reference Passing the structure as a value Structures can
How to pass structure through function in C programming? Read More »
In this chapter you will see some relevant examples of structures and pointers that will help you access data using pointers from structures. C Programming Structures and Pointers Structures can be both created and accessed using pointers . A pointer variable of structure type can be created as follows: struct name A pointer variable of type(*ptr) is created in the above
C Programming Structure and Pointer Read More »
In this chapter you will learn about C programming structures; What are structures, how to define structures and how to use them. C programming structure Structures in C programming are user defined data types. Structures are collections of variables with different data types under a single name. For example: You want to collect information about a
C Programming Structure Read More »