isdigit

Bir öğeyi bir yerel sayısal karakter olup olmadýðýný sýnar.

template<Class CharType>
   bool isdigit(
      CharType _Ch, 
      const locale& _Loc
   )

Parametreler

• _Ch
  Test edilecek olan öğe.

• _Loc
  Test edilecek öğeyi içeren yerel ayarı.

Dönüş Değeri

gerçek bir sayısal karakter Sınanan öğe ise, yanlış değilse.

Notlar

Şablon işlevini verir use_facet<ctype<CharType> >(_Loc).is(ctype<CharType>::digit, _Ch).

Örnek

// locale_is_digit.cpp
// compile with: /EHsc
#include <locale>
#include <iostream>

using namespace std;

int main( )   
{
   locale loc ( "German_Germany" );
   bool result1 = isdigit ( 'L', loc );
   bool result2 = isdigit ( '@', loc );
   bool result3 = isdigit ( '3', loc );

   if ( result1 )
      cout << "The character 'L' in the locale is "
           << "a numeric character." << endl;
   else
      cout << "The character 'L' in the locale is "
           << " not a numeric character." << endl;

   if ( result2 )
      cout << "The character '@' in the locale is "
           << "a numeric character." << endl;
   else
      cout << "The character '@' in the locale is "
           << " not a numeric character." << endl;

   if ( result3 )
      cout << "The character '3' in the locale is "
           << "a numeric character." << endl;
   else
      cout << "The character '3' in the locale is "
           << " not a numeric character." << endl;
}

Çıktı

The character 'L' in the locale is  not a numeric character.
The character '@' in the locale is  not a numeric character.
The character '3' in the locale is a numeric character.

Gereksinimler

Başlık: <locale>

Namespace: std