ToUpper()

static int System.MemoryExtensions.ToUpper ( this ReadOnlySpan< char > source, Span< char > destination, CultureInfo? culture )

inlinestatic

Definition at line 1519 of file MemoryExtensions.cs.

    {
        if (source.Overlaps(destination))
        {
            throw new InvalidOperationException(SR.InvalidOperation_SpanOverlappedOperation);
        }
        if (culture == null)
        {
            culture = CultureInfo.CurrentCulture;
        }
        if (destination.Length < source.Length)
        {
            return -1;
        }
        if (GlobalizationMode.Invariant)
        {
            InvariantModeCasing.ToUpper(source, destination);
        }
        else
        {
            culture.TextInfo.ChangeCaseToUpper(source, destination);
        }
        return source.Length;
    }

References System.culture, System.Globalization.CultureInfo.CurrentCulture, System.destination, System.SR.InvalidOperation_SpanOverlappedOperation, System.Globalization.GlobalizationMode.Invariant, System.source, and System.Globalization.InvariantModeCasing.ToUpper().