Initializing Structure Variable in C

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Initializing Structure Variable in C

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1. Memory is not allocated for Un-initialized Variable.
2. Let us discuss very familiar example of structure student , We can initialize structure variable in different ways - 

Way 1 : Declare and Initialize

struct student
{
char name[20];
int roll;
float marks;
}std1 = {"Pritesh",67,78.3); 

Way 2 : Declaring and Initializing Multiple Variables

struct student
{
char name[20];
int roll;
float marks;
}
std1 = {"Pritesh",67,78.3);
std2 = {"Don",62,71.3);

Way 3 : Initializing Single member

struct student
{
int mark1;
int mark2;
int mark3;
}sub1={67};

Though there are three members of structure,only one is initialized , Then remaining two members are initialized with Zero

Way 4 : Initializing inside main

struct student
{
int mark1;
int mark2;
int mark3;
};
void main()
{
struct student s1 = {89,54,65};
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- - - - --
- - - - --
};

Note : Structure array will be covered in later chapters.

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Tags / Keywords : | declaring Structure, initializing structure, structure

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