MemoryExtensions.ToUpper Method

Definition

Copies the characters from the source span into the destination, converting each character to uppercase, using the casing rules of the specified culture.

C#
public static int ToUpper(this ReadOnlySpan<char> source, Span<char> destination, System.Globalization.CultureInfo? culture);
C#
public static int ToUpper(this ReadOnlySpan<char> source, Span<char> destination, System.Globalization.CultureInfo culture);

Parameters

source
ReadOnlySpan<Char>

The source span.

destination
Span<Char>

The destination span which contains the transformed characters.

culture
CultureInfo

An object that supplies culture-specific casing rules.

Returns

The number of characters written into the destination span. If the destination is too small, returns -1.

Exceptions

The source and destination buffers overlap.

Remarks

If culture is null, CultureInfo.CurrentCulture will be used.

Applies to

Product Versions
.NET Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 4.7 (package-provided), 4.7.1 (package-provided), 4.7.2 (package-provided), 4.8 (package-provided)
.NET Standard 2.0 (package-provided), 2.1