What is the difference b/w Structure & Union?

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What is the difference b/w Structure & Union?..

Answer / nakul sharma

Memory allocated for any structure is equal to the sum of
memory required by each structure member.

Example: In a structure 'abc' below, memory allocated will
be 7 Bytes (2 Bytes for int a + 1 Byte for char b + 4 Bytes
for float c ina 32 bit processor)
struct abc
{
int a;
char b;
float c;
}

But in union memory allocated for it is equal to the memory
required by the biggest (in terms of memory it use) union
member.

Example: In a union 'abc' below, memory allocated will be 4
Bytes as float c is the biggest union member here and it
uses 4 Bytes of memory in 32 bit processor.

union abc
{
int a;
char b;
float c;
}

Is This Answer Correct ?

19 Yes

1 No

What is the difference b/w Structure & Union?..

Answer / karthikkumareg

in structure struct key word is used but in union union key
word is used.

Is This Answer Correct ?

6 Yes

9 No

What is the difference b/w Structure & Union?..

Answer / raj kumar

struct can hold multiple data types.
Like u can define a date structure....
but union can multiple data types which includes struct also

union x
{
int x;
struct
{
...
...
}
}

Is This Answer Correct ?

2 Yes

7 No

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