Determine if a number falls within a specified set of ranges

Question

I\'m looking for a fluent way of determining if a number falls within a specified set of ranges. My current code looks something like this:

int x = 500; // Could         


        

Answer 1

Try something like:

struct Range
{
   public readonly int LowerBound;
   public readonly int UpperBound; 

   public Range( int lower, int upper )
   { LowerBound = lower; UpperBound = upper; }

   public bool IsBetween( int value )
   { return value >= LowerBound && value <= UpperBound; }
}

public void YourMethod( int someValue )
{
   List<Range> ranges = {new Range(4199,6800),new Range(6999,8200),
                         new Range(9999,10100),new Range(10999,11100),
                         new Range(11999,12100)};

   if( ranges.Any( x => x.IsBetween( someValue ) )
   {
      // your awesome code...
   }
}

Answer 2

I personally prefer the extension method suggested by @Anton - but if you can't do that, and are going to stick with your current code, I think you could make it more readable by reversing the first set of conditions on each line as follows...

int x = 500; // Could be any number
if ( ( 4199 < x && x < 6800 ) ||
     ( 6999 < x && x < 8200 ) ||
     ( 9999 < x && x < 10100 ) ||
     ( 10999 < x && x < 11100 ) ||
     ( 11999 < x && x < 12100 ) )
{
    // More awesome code
}