How this output is obtained.

Question

Output is 7.

But can someone justify, how?

#include <stdio.h>
int f(int a, int b) {
        printf("%d", a + b);
        return 0;
}
int main() {
        f((2, 3), 4);
        return 0;
}

 

Answer 1

When you do int a=(2,3) => a=(3) => a=3

 comma evaluated first as it is in bracket which is 3 and then it is assigned to variable a

So 3+4 = 7 will be output

Comments

(2, 3) is evaluated to (2.3). How?

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Its typo error I corrected

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So you mean comma will find the greater value among the two. Is it?

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https://www.geeksforgeeks.org/a-comma-operator-question/

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@kd.....Thanks!