Func defination component

/******************************************************************************

Welcome to GDB Online.

GDB online is an online compiler and debugger tool for C, C++, Python, PHP, Ruby, 

C#, OCaml, VB, Perl, Swift, Prolog, Javascript, Pascal, HTML, CSS, JS

Code, Compile, Run and Debug online from anywhere in world.

*******************************************************************************/

#include <stdio.h>

enum keywords

{

  TYPEDEF,

  EXTERN,

  STATIC,

  AUTO,

  REGISTER,

  CONST,

  VOLATILE,

  VOID,

  CHAR,

  SHORT,

  INT,

  LONG,

  FLOAT,

  DOUBLE,

  SIGNED,

  UNSIGNED,

  STRUCT,

  UNION,

  ID

};

int arr[15];

char* arr[15];

int tok;

void nextToken()

{

   static int i =0;

   tok = arr[i];

   i++;  

}

void declaration_specifiers()

{

    if(tok == TYPEDEF || tok == EXTERN || tok == STATIC || tok == AUTO || tok == REGISTER)

    {

      nextToken();   

    }

    if(tok == CONST ||

      tok == VOLATILE)

    {

        

       nextToken(); 

    }

    

    if(tok == VOID || 

       tok == CHAR ||

       tok == SHORT || 

       tok == INT ||

       tok == LONG ||

       tok == FLOAT ||

       tok == DOUBLE ||

       tok == SIGNED ||

       tok == UNSIGNED

       )

       {

          nextToken(); 

       }

      

    /*  if(tok == STRUCT ||

         tok == UNION)

      {

          struct_or_union();

      } */

   return;

}

void extra_declarator()

{

    if(tok == '[')

    {

        

    }

    else if(tok == '(')

    {

        

    }

    else

      return;

      

    if(tok != NULL)

     extra_declarator();

}

void declarator()

{

    if(tok == ID)

    {

        

    }

    

    if(tok == '[')

    {

        

        

    }

    else if(tok == '(')

    {

        

        

    }

    else

      return;

    

    if(tok != NULL)

      extra_declarator();

    

}

void statement_list()

{

    

}

void compound_statement()

{

    if(tok == '{')

    {

        //statement_list();

        if(tok == '}')

        {

            

        }

    }

    

}

void function_definition()

{

    declaration_specifiers();

    declarator();

    compound_statement();

}

int main()

{

    arr[0] = STATIC;

    arr[1] = INT;

    arr[2] = ID;

    arr[3] = '(';

    arr[4] = ')';

    arr[5] = '{';

    arr[6] = '}';

     function_definition();

    return 0;

}