is desired to write a #define macro to compute the product of two numbers. What is the correct macro? Group of answer choices #define multiply (return(a*b)) #define multiply(a,b) (a*b) #define multiply(a,b) (int a*int b) #define multiply

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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It is desired to write a #define macro to compute the product of two numbers.

What is the correct macro?

Group of answer choices
#define multiply (return(a*b))
#define multiply(a,b) (a*b)
#define multiply(a,b) (int a*int b)
#define multiply (int a, b; return(a*b))
 
=============
What does the function fopen return?
Group of answer choices
an integer
a FILE pointer
it returns nothing
the contents of the file it is opening
 
===============

Consider the following code fragment:

int main (int argc, char* argv[])

{

                cout<<argc;

                return 0;

}

The code is compiled and executed from the terminal as: .\a.out

What will be the output?

Group of answer choices
0
1
argc
-1
 
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