Trap #1 :Error: Illegal Use Of Floating Point

There are  times when we write codes according to problem statement, Run it, and never be able to debug it.

Error: Illegal Use Of Floating Point is one such error. The problem is with the % operator you have used.

We all use '%' operator known as modulus operator in C. Lets focus on some facts about it :

1. % operator gives Remainder of Division of the two numbers.
   Ex. 20 % 3 = 2
2. On focusing a bit it will be clear that % operator gives its value in an int form.
3. Hence its defined only for integer type variables. The above error occurs because you ave used % with a float type variable or constant.Ex #1:
   #include<stdio.h>
   
   main()
   {
   int a=20,b=3,c; //NO ERROR
   c=a%b;
   printf("%d",c);
   }
   ####No Error Output = 2
   
   Ex #2:
   

   #include<stdio.h>

   main()

   {

   float a=20,b=3,c;

   c=a%b;

   printf("%f",c);

   }
   ###Error illegal use of floating point
   
4. If you want to use it with float values only then there is a solution for it too:
   use of fmod() Function defined under <math.h> library.

Meaning, Introduction & the Target Of This Blog

Hello Friends

We are all well aware that there are many web material (may be written by experts) on C.
Here This Blog is a quite different as I am too a 'Beginner' and  a 'Learner' .

There is a lot of difference when you write programs while learning (Programming Exercise Of Books) and when you create a 'Real World Program' starting from scraps or a mere IDEA. Things in real world almost rarely work in beginners case.
Here we will be dealing with all those common Mistakes or Exceptions of C and also a discuss Tips on a effective programming.

And last and the least the most interesting part of the blog will be I will be teaching you to create many interesting projects which will include real life Implementation and also we will learn to write few VIRUSES.
Please feel free to ask anything.