Return Without Argument Function in C

There could be occasions where we may need to design functions that may not take any arguments but returns a value to the calling function. A example for this is getchar function it has no parameters but it returns an integer an integer type data that represents a character.

Source Code

//Return Without Argument Function in C
int add();
int main()
    int a;
    printf("\nTotal : %d",a);
    return 0;
int add()
    int a,b;
    printf("\nEnter The Value of A & B : ");
    return a+b;
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