Use three conditions in while statement : while « Operators statements « C++ Tutorial

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2. Operators statements
3. while

#include <iostream>
 
 int main()
 {
     unsigned short small = 1;
     unsigned long  large = 123;
     const unsigned short MAXSMALL=65535;
 
     std::cout << "small: " << small << "...";
 
      // for each iteration, test three conditions
     while (small < large && large > 0 && small < MAXSMALL)
     {
         std::cout << ".";
         small++;
         large-=2;
     }
     std::cout << "\nSmall: " << small << " Large: "  << large << std::endl;
     return 0;
 }

small: 1............................................
Small: 42 Large: 41