Possible Duplicate: C Macros and use of arguments in parentheses I found this macro

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Editorial Team

Asked: June 4, 20262026-06-04T22:30:07+00:00 2026-06-04T22:30:07+00:00

Possible Duplicate:
C Macros and use of arguments in parentheses

I found this macro question to be very interesting.

If this following code is defined as a Macro

#define MULT(x, y) x * y

And the function call is made as int z = MULT(3 + 2, 4 + 2);.
The Desired output is 3+2=5 and 4+2=6 And 5*6 to be 30.

But the returned output was 13.
It takes it as 3+2*4+2. Hence according to the precedence of operators it evaluates 2*4 first.

What is the fix here?
In case of smaller functions like these which one is efficient? Defining the function or using the macros?

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Editorial Team · Answer 1 · 2026-06-04T22:30:08+00:00

Editorial Team

Try something like:

#define MULT(x, y) ((x)*(y))

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