islower
Comprueba si un elemento en una configuración regional es minúscula.
template<Class CharType>
bool islower(
CharType _Ch,
const locale& _Loc
)
Parámetros
_Ch
El elemento que se va a probar._Loc
Configuración regional que contiene el elemento que se va a probar.
Valor devuelto
TRUE si el elemento probado es un carácter en minúscula; Falso si no es.
Comentarios
la función de la plantilla devuelve use_facet<C<CharType> > (_Loc).es(C<CharType>::inferior, _Ch).
Ejemplo
// locale_islower.cpp
// compile with: /EHsc
#include <locale>
#include <iostream>
using namespace std;
int main( )
{
locale loc ( "German_Germany" );
bool result1 = islower ( 'L', loc );
bool result2 = islower ( 'n', loc );
bool result3 = islower ( '3', loc );
if ( result1 )
cout << "The character 'L' in the locale is "
<< "a lowercase character." << endl;
else
cout << "The character 'L' in the locale is "
<< " not a lowercase character." << endl;
if ( result2 )
cout << "The character 'n' in the locale is "
<< "a lowercase character." << endl;
else
cout << "The character 'n' in the locale is "
<< " not a lowercase character." << endl;
if ( result3 )
cout << "The character '3' in the locale is "
<< "a lowercase character." << endl;
else
cout << "The character '3' in the locale is "
<< " not a lowercase character." << endl;
}
Output
The character 'L' in the locale is not a lowercase character.
The character 'n' in the locale is a lowercase character.
The character '3' in the locale is not a lowercase character.
Requisitos
encabezado: <configuración regional>
espacio de nombres: std