BCA 2nd Sem Notes-Structure definition in c

• UNIT-I (Array)

Definition

Declaration & initialization of 1D 

Accessing array elements

Displaying array elements

Sorting arrays

Arrays and function

Declaration & initialization of 1D

Accessing and Displaying

Memory representation of array [Row Major, Column Major]

Multidimensional array

UNIT-II (Pointers)

Definition

Declaration & initialization

Indirection operator

address of operator

pointer arithmetic

dynamic memory allocation

arrays and pointers

function and pointers

UNIT-III (Strings)

Definition

Declaration & initialization

standard library            function strlen()

  strlen(),strcpy(),       strcat() ,strcmp()

Implementation without using standard library functions

UNIT-IV (Structures)

Definition

Declaration & initialization

Accessing fields

structure operations

Nested structures

Union: Definition  declaration

Differentiate between Union and structure

UNIT-V                                     (C Pre-processor)

Definition
Macro substitution directives
File inclusion directives
Conditional compilation
Bitwise Operators
Shift operators
Masks
Bitfield

UNIT-VI                                (File Handling)

Definition of Files,
Opening modes of files
Standard function
fopen(), fclose(),             feof()  fseek(),                    fewind()
Using text files
fgetc(), fputc(), fscanf()

 C Structure

A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized

The structure is a user-defined data type in C language which allows us to combine data of different types together. structure assists with developing a perplexing information type which is increasingly significant. It is to some degree like an Array, however, a cluster holds information of comparable kind as it were. Be that as it may, the structure then again can store information of any sort, which is down to earth progressively valuable.

How to characterize structures? 

Before you can make structure factors, you have to characterize its information type. To characterize a struct, the struct watchword is utilized.

Syntax of struct

struct structureName

{

    dataType member1;

    datatype  member2;

     ...

};

Example

struct Person

{

    char name[50];

    int  no;

    float Salary;

};

Here, a derived type  Struct Person is defined. Now, you can create variables of this type

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