Comments are hints that a programmer adds within its code so other person who looks at the code can understand it.
There are two types of comments in C language:
1. Single Line Comments
2. Multi Line Comments.
Single line Comments :
Single-line comments Start with double forward slashes(//).
Any text written after the forward slashes(//) will be ignored by the compiler (i.e., will not be executed).
Example:
//Program to add two numbers.
#include <stdio.h>
int main() {
//declaring variable
int number1, number2, sum;
//print the sum of number1 and number2
printf("Enter two integers: ");
scanf("%d %d", &number1, &number2);
// calculating sum
sum = number1 + number2;
printf("%d + %d = %d", number1, number2, sum);
return 0;
}Multi-line comments:
Multi-line comments start with /* and ends with */.
Any textwritten between /* and */ will be ignored by the compiler.
Example:
/*Progrm in C to
add two numbers.*/
#include <stdio.h>
int main() {
//declaring variable
int number1, number2, sum;
//print the sum of number1 and number2
printf("Enter two integers: ");
scanf("%d %d", &number1, &number2);
// calculating sum
sum = number1 + number2;
printf("%d + %d = %d", number1, number2, sum);
return 0;
}
}