C# Numeric promotion of conditional expressions

Numerical promotion is to promote a smaller type to a larger type, such as from short to int.

In the example below, we see numeric boosting in the conditional expression.

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Short types are automatically promoted to larger int types.

Example

using System;

class Program {
   static void Main() {
      short val1 = 99;
      int val2;

      val2 = (val1 == 1) ? 100 : 30;

      Console.WriteLine(val2);
   }
}

Output

Above, we used a conditional expression that is automatically promoted to int -

val2 = (val1 == 1) ? 100 : 30;

Here, val2 is an int, val is a short.

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