public int Compare(ProblemString x, ProblemString y)
{
var xStringPart = x.RawString.AsSpan(x.PointIndex + 1);
var yStringPart = y.RawString.AsSpan(y.PointIndex + 1);
var stringPartCompareResult = MemoryExtensions.CompareTo(xStringPart, yStringPart, StringComparison.Ordinal);
return(stringPartCompareResult == 0
? x.Number - y.Number
: stringPartCompareResult);
}
bool IEqualityComparer.Equals(object?x, object?y)
{
ReadOnlySpan <char> left = x switch
{
string str => str,
char[] chars => chars,
_ => x?.ToString()
};
ReadOnlySpan <char> right = y switch
{
string str => str,
char[] chars => chars,
_ => x?.ToString()
};
return(MemoryExtensions.Equals(left, right, _comparison));
}
int IEqualityComparer.GetHashCode(object obj)
{
ReadOnlySpan <char> span = obj switch
{
string str => str,
char[] chars => chars,
_ => obj?.ToString()
};
return(string.GetHashCode(span, _comparison));
}
int IComparer.Compare(object?x, object?y)
{
ReadOnlySpan <char> left = x switch
{
string str => str,
char[] chars => chars,
_ => x?.ToString()
};
ReadOnlySpan <char> right = y switch
{
string str => str,
char[] chars => chars,
_ => x?.ToString()
};
return(MemoryExtensions.CompareTo(left, right, _comparison));
}
}
}
public int Compare(char[]?x, char[]?y)
{
return(MemoryExtensions.CompareTo(x, y, _comparison));
}
public int Compare(string?x, string?y)
{
return(MemoryExtensions.CompareTo(x, y, _comparison));
}
public int Compare(ReadOnlySpan <char> x, ReadOnlySpan <char> y)
{
return(MemoryExtensions.CompareTo(x, y, _comparison));
}
