strange decimal rounding

This is a discussion on strange decimal rounding within the C# Programming forums, part of the General Programming Boards category; Hello everyone, As mentioned here, http://msdn.microsoft.com/en-us/libr...al(VS.80).aspx "Conversions from Decimal to other types are narrowing conversions that round the Decimal value ...

  1. #1
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    strange decimal rounding

    Hello everyone,


    As mentioned here,

    http://msdn.microsoft.com/en-us/libr...al(VS.80).aspx

    "Conversions from Decimal to other types are narrowing conversions that round the Decimal value to the nearest integer value toward zero."

    It conflicts my previous understanding that in all rounding in C#, we round to the nearest integer. Here is my test code. How strange it is, right?

    Code:
    using System;
    
    class Test
    {
        static void Main()
        {
            Decimal b = 100.9M;
            int a = (int)b;
    
            // output 100, other than 101
            Console.WriteLine(a);
    
            return;
        }
    }

    thanks in advance,
    George

  2. #2
    Confused Magos's Avatar
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    100 is the closest integer in the direction of 0, as it should be.
    MagosX.com

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    Teach a man to fish and you feed him for a lifetime.

  3. #3
    the hat of redundancy hat nvoigt's Avatar
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    How strange it is, right?
    I don't see any strangeness here. Your code does exactly as described.
    hth
    -nv

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