First character of name of any function must be either alphabets or underscore in c

First letter or character of a function's name must be either an alphabet or underscore. If function name start from any digits or any other special character then we will get compilation error.



Example 1:



#include

int main(){

   int min=1,max=100;

   int sum;

   sum= _digit_(min,max);

   printf("sum = %d",sum);

   return 0;

}

int _digit_(int min,int max){

   int total;

Name of function includes only alphabets, digit and underscore in c

A function name in c can  have only alphabet,digits and underscore. If we will use any other characters in the function name then we will get a compilation error.

    

Example:



#include

int main(){

   int min=1,max=100;

   int sum;

   sum=sum ofdigit(min,max);

   printf("sum = %d",sum);

   return 0;

}

int sum of digit(int min,int max){

  int

Question of c preprocessor with detailed solution

C programming preprocessor
questions and explanations



(1) What will be output of following code?






#include

#define max 10




int main(){




    int i;




    i=++max;




    printf("%d",i);




    return 0;

}






(2) What will be output of
following code?






#include

#define max 10+2




int main(){




    int i;




    i=max*max;




    printf("%d",i);

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