What is the output of this C code? #include union { int x; char y; }p; int main() { p.y = 60; printf("%d\n", sizeof(p)); }

C Programming Language Union in C Language

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Q: What is the output of this C code?


    #include <stdio.h>
    union
    {
        int x;
        char y;
    }p;
    int main()
    {
        p.y = 60;
        printf("%d\n", sizeof(p));
    }

A Compile time error
B sizeof(int) + sizeof(char)
C Depends on the compiler
D sizeof(char)
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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 is the output of this C code? #include <stdio.h> union { int x; char y; }p; int main() { p.y = 60; printf("%d\n", sizeof(p)); }

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Q: What is the output of this C code?