File content as of revision 1:09ea183d3f39:

#include "mbed.h"

class BoundedInt {

  int min_;
  int max_;
  int value_;

public:
  
  /* Constructor: takes a minimum and maximum value, and an initial value.
    Enforces min <= max and calls setValue() to enforce min <= value <= max. */
  BoundedInt(int min, int max, int value) {
    if (max < min) {
        max = min;
    }
    min_ = min;
    max_ = max;
    setValue(value);
  }
  
  /* Sets a new value for this BoundedInt.  If the supplied value is outside
    the range [min, max] it will be set to the closest valid value instead. */
  void setValue(int value) {
      if (value < min_) {
          value = min_;
      }
      if (value > max_) {
          value = max_;
      }
      value_ = value;
  }
  
  /* Returns the value of this BoundedInt as an int */
  int getValue() {
      return value_;
  }
  
  /* Shorthand for .setValue() */
  BoundedInt & operator=(int value) {
    setValue(value);
    return *this;
  }

};

int main() {
  printf("ok\r\n");

  BoundedInt test(0, 10, 0); // Minimum, maximum, initial value
  
  printf("Value is %d\r\n", test.getValue());
  test = 4;
  printf("Value is %d\r\n", test.getValue());
  test = 25;
  printf("Value is %d\r\n", test.getValue());
  
  // Do nothing, forever...
  while (true);
}