Ans:-
The differences between struct and union are given below in tabular form.
The differences between struct and union are given below in tabular form.
struct
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Union
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1.It stores dis-similar data.Each gets separate space in memory.They do not share memory
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1. It stores dis-similar type of data.Total memory space is equal to the member with largest size.They share memory space.
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2.we can access member in any sequence .
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2.We can access that whose value is recently used.
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3.It uses keyword 'struct'
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3.It uses keyword 'union'
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4.We can initialize values of member/s and in any order
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4.We can initialize that member which is first declared.
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5.It consumes more memory
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5.It consumes less memory.
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6.Its syntax
struct tag
{
datatype member1;
datatype member2;
datatype member3;
}variable;
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6.Its syntax
union tag
{
datatype member1;
datatype member2;
datatype member3;
}variable;
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Example
struct student
{
int roll;
char sex;
float percentage;
}var;
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Example
union student
{
int roll;
char sex;
float percentage;
}var;
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