Espacios de nombres
Variantes
Acciones

Representación alternativa de operadores

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Lenguaje C++
Los temas generales
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General topics
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Control de flujo
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Flow control
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Sentencias condicionales ejecución
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Conditional execution statements
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Instrucciones de iteración
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Iteration statements
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Ir declaraciones
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Jump statements
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Funciones
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Functions
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declaración de la función
lambda declaración de la función
función de plantilla
especificador inline
especificaciones de excepción (obsoleto)
noexcept especificador (C++11)
Excepciones
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Exceptions
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Los espacios de nombres
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Namespaces
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Tipos
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Types
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decltype specifier (C++11)
Los especificadores
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Specifiers
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cv especificadores
almacenamiento duración especificadores
constexpr especificador (C++11)
auto especificador (C++11)
alignas especificador (C++11)
Inicialización
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Initialization
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Los literales
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Literals
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Expresiones
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Expressions
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representaciones alternativas
Utilidades
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Utilities
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Tipos
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Types
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typedef declaration
alias de tipo de declaración (C++11)
atributos (C++11)
Lanza
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Casts
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conversiones implícitas
const_cast conversion
static_cast conversion
dynamic_cast conversion
reinterpret_cast conversion
C-cast estilo y funcional
De asignación de memoria
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Memory allocation
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Clases
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Classes
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Clase propiedades específicas de la función
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Class-specific function properties
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Funciones especiales miembro
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Special member functions
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Plantillas
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Templates
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clase de plantilla
función de plantilla
plantilla de especialización
paquetes de parámetros (C++11)
Varios
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Miscellaneous
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Montaje en línea
 
En C + + (y C) el código fuente puede estar escrito en cualquier conjunto de carácteres no ASCII de 7 bits, que incluye el conjunto de caracteres invariante ISO 646/ECMA-6. Sin embargo, varios operadores de C + + y puntuaciones requieren carácteres que se encuentran fuera del juego de códigos ISO 646: {, }, [, ], #, \, ^, |, ~. Para poder utilizar una codificación de carácteres donde algunos o todos estos símbolos no existen, C + + define dos tipos de alternativas: palabras clave adicionales que corresponden a los operadores que utilizan estos carácteres y combinaciones especiales de dos o tres carácteres compatibles con ISO 646 que son interpretados como si se tratara de un carácter simple no-ISO 646.
Original:
C++ (and C) source code may be written in any non-ASCII 7-bit character set that includes the ISO 646/ECMA-6 invariant character set. However, several C++ operators and punctuators require characters that are outside of the ISO 646 codeset: {, }, [, ], #, \, ^, |, ~. To be able to use character encodings where some or all of these symbols do not exist, C++ defines two kinds of alternatives: additional keywords that correspond to the operators that use these characters and special combinations of two or three ISO 646 compatible characters that are interpreted as if they were a single non-ISO 646 character.
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Contenido

[editar] Palabras clave alternativas

Hay palabras alternativas para varios operadores definidos como palabras clave en C + + estándar .

Principal Alternativa
&& and
&= and_eq
& bitand
| bitor
~ compl
! not
!= not_eq
|| or
|= or_eq
^ xor
^= xor_eq

[editar] Compatibilidad con C

Las mismas palabras se definen en el lenguaje de programación C, en el archivo de cabecera <iso646.h>, como macros. Debido a que en C + + son palabras clave del lenguaje, la versión C + + de <iso646.h>, así como <ciso646>, no define nada .

[editar] Dígrafos y trígrafos

Las siguientes combinaciones de dos y tres caracteres (dígrafos y trígrafos) son sustituciones válidas para sus respectivos símbolos principales:

Principal Dígrafo Trígrafo
{ <% ??<
None} %> ??>
[ <: ??(
] :> ??)
# %: ??=
\ ??/
^ ??'
| ??!
~ ??-

[editar] Palabras clave

and, and_eq, bitand, bitor, compl, not, not_eq, or, or_eq, xor, xor_eq

[editar] Ejemplo

El siguiente ejemplo muestra el uso de diversas palabras clave alternativas:

%:include <iostream>
 
int main(int argc, char *argv<::>) 
<%
    if (argc > 1 and argv<:1:> not_eq '\0') <%
        std::cout << "Hello " << argv<:1:> << '\n';
    %>
%>