isspace

Article
2013-02-04

Tests whether an element in a locale is a whitespace character.

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

Parameters

_Ch
The element to be tested.
_Loc
The locale containing the element to be tested.

Return Value

true if the element tested is a whitespace character; false if it is not.

Remarks

The template function returns use_facet<ctype<CharType> >(_Loc).is(ctype<CharType>::space, _Ch).

Example

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

using namespace std;

int main( )   
{
   locale loc ( "German_Germany" );
   bool result1 = isspace ( 'L', loc );
   bool result2 = isspace ( '\n', loc );
   bool result3 = isspace ( ' ', loc );

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

   if ( result2 )
      cout << "The character 'backslash-n' in the locale is "
           << "a whitespace character." << endl;
   else
      cout << "The character 'backslash-n' in the locale is "
           << " not a whitespace character." << endl;

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

Output

The character 'L' in the locale is  not a whitespace character.
The character 'backslash-n' in the locale is a whitespace character.
The character ' ' in the locale is a whitespace character.

Requirements

Header: <locale>

Namespace: std

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