#30: Preprocesor and Macros | C Programming for Beginners

#30: Preprocessor and Macros | C Programming for Beginners

In this video, we will learn about preprocessors and macros. We have been using preprocessor in all our programs. Similarly, we will learn about macros, macros are a piece of code that is given some name. For example, #define PI 3.1415, here PI is a macro. So, from this video, you will know the exact meaning and use of preprocessor and macros with specific examples.

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Resources:

Timestamps:
00:55 - #include Preprocessor
04:24 - #define Preprocessor
06:45 - Define Function Macros
07:59 - Programming Task
08:42 - Quiz

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[sandeepvarma]

programmin task:
#include <stdio.h>
#include<math.h>
#define squareroot 36
int main() {
int result=sqrt(squareroot);
printf("%d", result);
return 0;
}
quiz: option c(#)

[prathikantamsaivarnith]

#include <stdio.h>
#include <math.h>
# define squareroot 36
int main() {
int result=sqrt(squareroot);
printf("squareroot of a number is:%d", result);
return 0;
}

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[onic]

Option C : #



#include <stdio.h>
#include <math.h>

#define squareRoot(n) sqrt(n)

int main() {

int n = 25;

double result = squareRoot(n);

printf("%.2lf", result);

return 0;
}

[AFCOE]

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