convert double to int

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You can use a cast if you want the default truncate-towards-zero behaviour. Alternatively, you might want to use Math.Ceiling, Math.Round, Math.Floor etc – although you’ll still need a cast afterwards.

Don’t forget that the range of int is much smaller than the range of double. A cast from double to int won’t throw an exception if the value is outside the range of int in an unchecked context, whereas a call to Convert.ToInt32(double) will. The result of the cast (in an unchecked context) is explicitly undefined if the value is outside the range.

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