What would be the size of the following union declaration? #include union uTemp { double a; int b[10]; char c; }u; (Assuming size of double = 8, size of int = 4, size of char = 1)

C Programming Language Union in C Language

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Q: What would be the size of the following union declaration?


    #include <stdio.h>
    union uTemp
    {
        double a;
        int b[10];
        char c;
    }u;

(Assuming size of double = 8, size of int = 4, size of char = 1)

A 4
B 8
C 40
D 80
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Union is an user defined datatype in C programming language. It is a collection of variables of different datatypes in the same memory location. We can define a union with many members, but at a given point of time only one member can contain a value. Unions can be very handy when you need to talk to peripherals through some memory mapped registers.

Q: What would be the size of the following union declaration? #include <stdio.h> union uTemp { double a; int b[10]; char c; }u; (Assuming size of double = 8, size of int = 4, size of char = 1)

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Q: What would be the size of the following union declaration?
(Assuming size of double = 8, size of int = 4, size of char = 1)