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Code Issues

(#42) Validate lower <= upper

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This commit is contained in:
Oliver Booth 2021-06-27 13:14:42 +01:00
parent 370f2d96f4
commit d6f4a96257
1 changed files with 9 additions and 0 deletions
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9
X10D/src/ComparableExtensions/ComparableExtensions.cs
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@ -45,12 +45,21 @@ namespace X10D
/// </example> /// </example>
public static bool Between<T1, T2, T3>(this T1 value, T2 lower, T3 upper) public static bool Between<T1, T2, T3>(this T1 value, T2 lower, T3 upper)
where T1 : IComparable<T2>, IComparable<T3> where T1 : IComparable<T2>, IComparable<T3>
where T2 : IComparable<T3>
where T3 : IComparable<T2>
{ {
if (value is null) if (value is null)
{ {
throw new ArgumentNullException(nameof(value)); throw new ArgumentNullException(nameof(value));
} }
if (lower.GreaterThan(upper))
{
throw new ArgumentException(
string.Format(ExceptionMessages.LowerCannotBeGreaterThanUpper, lower, upper),
nameof(lower));
}
return value.CompareTo(lower) > 0 && value.CompareTo(upper) < 0; return value.CompareTo(lower) > 0 && value.CompareTo(upper) < 0;
} }