int32

ulong ulNumber = 163245617943825; try { long number1 = (long) ulNumber; Console.WriteLine(number1); } catch (OverflowException) { Console.WriteLine("{0} is out of range of an Int64.", ulNumber); } double dbl2 = 35901.997; try { long number2 = (long) dbl2; Console.WriteLine(number2); } catch (OverflowException) { Console.WriteLine("{0} is out of range of an Int64.", dbl2); } BigInteger bigNumber = (BigInteger) 1.63201978555e30; try { long number3 = (long) bigNumber; Console.WriteLine(number3); } catch (OverflowException) { Console.WriteLine("{0} is out of range of an Int64.", bigNumber); } // The example displays the following output: // 163245617943825 // 35902 // 1,632,019,785,549,999,969,612,091,883,520 is out of range of an Int64.

Int64

decimal[] values= { Decimal.MinValue, -1034.23m, -12m, 0m, 147m,
                    199.55m, 9214.16m, Decimal.MaxValue };
long result;

foreach (decimal value in values)
{
   try {
      result = Convert.ToInt64(value);
      Console.WriteLine("Converted the {0} value '{1}' to the {2} value {3}.",
                        value.GetType().Name, value,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("{0} is outside the range of the Int64 type.",
                        value);
   }   
}                                  
// The example displays the following output:
//    -79228162514264337593543950335 is outside the range of the Int64 type.
//    Converted the Decimal value '-1034.23' to the Int64 value -1034.
//    Converted the Decimal value '-12' to the Int64 value -12.
//    Converted the Decimal value '0' to the Int64 value 0.
//    Converted the Decimal value '147' to the Int64 value 147.
//    Converted the Decimal value '199.55' to the Int64 value 200.
//    Converted the Decimal value '9214.16' to the Int64 value 9214.
//    79228162514264337593543950335 is outside the range of the Int64 type.

Posted by: Guest on March-26-2020

Source

Int32 and Int64 are defined by their names. Int32 is a signed, thirty-two byte integer value (4 bytes), and an int64 is a signed, sixty-four bit integer value (8 bytes). Int32 has a min/max of 2.147 billion and int64 has a min/max of 9223 with a lot of zeroes

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