/* File: boolExprs.cpp
 * example of two boolean expressions:
 *     math. notation: 'a' <= ch <= 'z' 
 *     C++ notation: ch >= 'a' && ch <= 'z'
 * both expressions compile, but only the latter is correct
 * covered in class week 3
 */

#include <iostream>
using namespace std;


//main() ------------------------------------------
//
int main(){
   char ch;      // lower case letter entered by user

   //prompt and read
   cout << "enter ch: ";
   cin >> ch;


   if ('i' <= ch <= 'n')
     cout << "'i' <= ch <= 'n' is true" << endl;

   if (ch >= 'i' && ch <= 'n')
     cout <<   "ch >= 'i' && ch <= 'n' is true" << endl;
   else 
     cout <<   "ch >= 'i' && ch <= 'n' is false " << endl;

   return 0;
}