39 lines
985 B
C#
39 lines
985 B
C#
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using System;
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namespace AssortValidator.Common.Helpers
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{
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public static class MathExtensions
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{
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public static int Round(this int i, int nearest)
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{
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if (nearest <= 0 || nearest % 10 != 0)
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throw new ArgumentOutOfRangeException(nameof(nearest), "Must round to a positive multiple of 10");
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return (i + (5 * nearest / 10)) / nearest * nearest;
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}
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public static int NumberSize(this int i)
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{
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switch (i.ToString().Length)
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{
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case 1:
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return 1;
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case 2:
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return 10;
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case 3:
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return 100;
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case 4:
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return 1000;
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case 5:
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return 10000;
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case 6:
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return 100000;
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case 7:
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return 1000000;
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}
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return 10;
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}
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}
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}
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