#include<string.h>
#include<stdio.h>
#include<stdlib.h>

// this program prints out ascii for various control chars
// and uses atoi to covert a string to a number

int main(void)
{

  char *num="123";
  char c = 'a';  // a  character
  char eos = '\0'; // end of string char
  char nl = '\n';  // newline character

  printf("character  %c which is ascii %d\n", c, c);
  printf("end of string is %c which is ascii %d\n", eos, eos);
  printf("new line is %c which is ascii %d\n", nl, nl);
  printf("eof is control d is %c which is ascii %d\n", EOF, EOF);
  printf("covert a string %s to an integer  %d\n", num, atoi(num));

  return 0;

}