This documentation is archived and is not being maintained.
CharUnicodeInfo::GetDecimalDigitValue Method (Char)
Visual Studio 2010
Gets the decimal digit value of the specified numeric character.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- ch
- Type: System::Char
The Unicode character for which to get the decimal digit value.
Return Value
Type: System::Int32The decimal digit value of the specified numeric character.
-or-
-1, if the specified character is not a decimal digit.
Decimal digit value is a property that applies only to decimal digits. A decimal digit is a digit in the decimal (base-10) system that can be one of ten digits, from zero through nine.
For more information on Unicode characters, see the Unicode Standard.
The following code example shows the values returned by each method for different types of characters.
using namespace System; using namespace System::Globalization; void PrintProperties( Char c ); int main() { Console::WriteLine( " c Num Dig Dec UnicodeCategory" ); Console::Write( "U+0061 LATIN SMALL LETTER A " ); PrintProperties( L'a' ); Console::Write( "U+0393 GREEK CAPITAL LETTER GAMMA " ); PrintProperties( L'\u0393' ); Console::Write( "U+0039 DIGIT NINE " ); PrintProperties( L'9' ); Console::Write( "U+00B2 SUPERSCRIPT TWO " ); PrintProperties( L'\u00B2' ); Console::Write( "U+00BC VULGAR FRACTION ONE QUARTER " ); PrintProperties( L'\u00BC' ); Console::Write( "U+0BEF TAMIL DIGIT NINE " ); PrintProperties( L'\u0BEF' ); Console::Write( "U+0BF0 TAMIL NUMBER TEN " ); PrintProperties( L'\u0BF0' ); Console::Write( "U+0F33 TIBETAN DIGIT HALF ZERO " ); PrintProperties( L'\u0F33' ); Console::Write( "U+2788 CIRCLED SANS-SERIF DIGIT NINE " ); PrintProperties( L'\u2788' ); } void PrintProperties( Char c ) { Console::Write( " {0,-3}", c ); Console::Write( " {0,-5}", CharUnicodeInfo::GetNumericValue( c ) ); Console::Write( " {0,-5}", CharUnicodeInfo::GetDigitValue( c ) ); Console::Write( " {0,-5}", CharUnicodeInfo::GetDecimalDigitValue( c ) ); Console::WriteLine( "{0}", CharUnicodeInfo::GetUnicodeCategory( c ) ); } /* This code produces the following output. Some characters might not display at the console. c Num Dig Dec UnicodeCategory U+0061 LATIN SMALL LETTER A a -1 -1 -1 LowercaseLetter U+0393 GREEK CAPITAL LETTER GAMMA \u0393 -1 -1 -1 UppercaseLetter U+0039 DIGIT NINE 9 9 9 9 DecimalDigitNumber U+00B2 SUPERSCRIPT TWO \u00B2 2 2 2 OtherNumber U+00BC VULGAR FRACTION ONE QUARTER \u00BC 0.25 -1 -1 OtherNumber U+0BEF TAMIL DIGIT NINE \u0BEF 9 9 9 DecimalDigitNumber U+0BF0 TAMIL NUMBER TEN \u0BF0 10 -1 -1 OtherNumber U+0F33 TIBETAN DIGIT HALF ZERO \u0F33 -0.5 -1 -1 OtherNumber U+2788 CIRCLED SANS-SERIF DIGIT NINE \u2788 9 9 -1 OtherNumber */
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Show: