Counts characters and words in a string

/*This program counts the characters in a string and the words in it */

#include<stdio.h>

#include<conio.h>

int main()

{

 int count_words=0,i;

 int count_char=0;

 char str[20];

 printf("Enter string: ");

 gets(str);

 for(i=0; str[i]!=NULL; i++)

 {

   char++;

   if(str[i]==' ') /*Controlls if the character is a space*/

      words++;

 }

 printf("\nNumber of characters : %d",char);

 printf("\nNumber of words: % d",words+1);

 getch();

 return 0;

}

     Output :

Enter string : programming geek

Number of characters in string : 16

Number of words in string : 2