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    Apoyo de compiladores para C++20

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    Apoyo de compiladores
     

    Características principales del lenguaje C++20

    Característica de C++20
          		Ponencia(s)
     
    GCC
    Clang
    MSVC
    Apple Clang
    EDG eccp
    Intel C++
    IBM XLC++
    Sun/Oracle C++
    Embarcadero C++ Builder
    Cray
    Portland Group (PGI)
    Nvidia nvcc
    Permitir captura de lambda [=, this] [https://wg21.link/P0409R2 [HTTPS://WG21.LINK/P0409R2
    [1] P0409R2]]     		8 6 19.22*

    10.0.0*

    		5.1 2021.1 20.7
    __VA_OPT__ [https://wg21.link/P0306R4 [HTTPS://WG21.LINK/P0306R4
    [2]
    P0306R4
    [3]
    [4] P1042R1]]     		8 (parcial)*
    10 (parcial)*     		9 19.25*

    11.0.3*

    		5.1 2021.1 20.7
    Inicializadores designados [https://wg21.link/P0329R4 [HTTPS://WG21.LINK/P0329R4
    [5] P0329R4]]     		4.7 (parcial)*
    8     		3.0 (parcial)*
    10     		19.21* (parcial)* 5.1 2021.1 20.7
    Lista de parámetros de plantilla para lambdas genéricas [https://wg21.link/P0428R2 [HTTPS://WG21.LINK/P0428R2
    [6] P0428R2]]     		8 9 19.22*

    11.0.0*

    		5.1 2021.1 20.7
    Inicializadores de miembros por defecto para campos de bits [https://wg21.link/P0683R1 [HTTPS://WG21.LINK/P0683R1
    [7] P0683R1]]     		8 6 19.25*

    10.0.0*

    		5.1 2021.1 20.7
    Constructores con inicialización de lista en la deducción de argumentos de plantillas de clase [https://wg21.link/P0702R1 [HTTPS://WG21.LINK/P0702R1
    [8] P0702R1]]     		8 6 19.14* Sí 5.0 2021.1 20.7
    Punteros a miembros calificados const& [https://wg21.link/P0704R1 [HTTPS://WG21.LINK/P0704R1
    [9] P0704R1]]     		8 6 19.0 (2015)*

    10.0.0*

    		5.1 2021.1 20.7
    Conceptos [https://wg21.link/P0734R0 [HTTPS://WG21.LINK/P0734R0
    [10] P0734R0]]     		6
    (sólo TS)
    10     		10 19.23* (parcial)*

    12.0.0* (parcial)

    		6.1 2021.5 20.11
    Lambdas en contextos no evaluados [https://wg21.link/P0315R4 [HTTPS://WG21.LINK/P0315R4
    [11] P0315R4]]     		9 13 (parcial)*
    14 (parcial)*     		19.28 (16.8)*
    Operador de comparación de tres vías [https://wg21.link/P0515R3 [HTTPS://WG21.LINK/P0515R3
    [12] P0515R3]]     		10 8 (parcial)
    10     		19.20* 5.1 2021.1 20.7
    ID: Simplificar captura de lambda implícita [https://wg21.link/P0588R1 [HTTPS://WG21.LINK/P0588R1
    [13] P0588R1]]     		8 19.24* 5.1 2021.1 20.7
    Instrucciones de inicialización para bucle for basado en rango}} [https://wg21.link/P0614R1 [HTTPS://WG21.LINK/P0614R1
    [14] P0614R1]]     		9 8 19.25*

    11.0.0*

    		6.0 20.11
    Lambdas sin estado construibles y asignables por defecto [https://wg21.link/P0624R2 [HTTPS://WG21.LINK/P0624R2
    [15] P0624R2]]     		9 8 19.22*

    10.0.1*

    		5.1 2021.1 20.7
    Coincidencia errónea const con constructor de copia por defecto (= default) [https://wg21.link/P0641R2 [HTTPS://WG21.LINK/P0641R2
    [16] P0641R2]]     		9 8 19.0 (2015)*

    10.0.1*

    		5.1 2021.1 20.7
    Verificación de acceso en especializaciones [https://wg21.link/P0692R1 [HTTPS://WG21.LINK/P0692R1
    [17] P0692R1]]     		Sí 8 (parcial) 19.26*

    10.0.1* (parcial)

    		5.1 2021.1 20.7
    Búsqueda dependiente de argumento (ADL) y plantillas de función que no son visibles [https://wg21.link/P0846R0 [HTTPS://WG21.LINK/P0846R0
    [18] P0846R0]]     		9 9 19.21*

    11.0.3*

    		5.1 2021.1 20.7
    ID: Especificar cuándo las definiciones de funciones constexpr son necesarias para la evaluación constante [https://wg21.link/P0859R0 [HTTPS://WG21.LINK/P0859R0
    [19] P0859R0]]     		5.2 (parcial)*
    9         		8 19.27* (parcial)*
    19.31*
    Atributos [[likely]] y [[unlikely]] [https://wg21.link/P0479R5 [HTTPS://WG21.LINK/P0479R5
    [20] P0479R5]]     		9 12 19.26*

    13.0.0*

    		5.1 20.7
    Hacer typename más opcional [https://wg21.link/P0634R3 [HTTPS://WG21.LINK/P0634R3
    [21] P0634R3]]     		9 19.29 (16.10)* 5.1 20.7
    Expansión de paquete en captura de inicialización (init-capture) de lambda [https://wg21.link/P0780R2 [HTTPS://WG21.LINK/P0780R2
    [22] P0780R2]]     		9 9 19.22*

    11.0.3*

    		6.1 20.11
    Atributo [[no_unique_address]] [https://wg21.link/P0840R2 [HTTPS://WG21.LINK/P0840R2
    [23] P0840R2]]     		9 9 19.28 (16.9)**

    11.0.3*

    		5.1 2021.1 20.7
    Funciones miembro especiales condicionalmente triviales [https://wg21.link/P0848R3 [HTTPS://WG21.LINK/P0848R3
    [24] P0848R3]]     		10 19.28 (16.8)* 6.1 20.11
    ID: Relajar las reglas para encontrar un punto de personalización para vínculos estructurados [https://wg21.link/P0961R1 [HTTPS://WG21.LINK/P0961R1
    [25] P0961R1]]     		8 8 19.21*

    10.0.1*

    		5.1 2021.1 20.7
    ID: Relajar las reglas para encontrar un punto de personalización para el bucle for basado en rango [https://wg21.link/P0962R1 [HTTPS://WG21.LINK/P0962R1
    [26] P0962R1]]     		8 8 19.25* 5.1 2021.1 20.7
    ID: Permitir vínculos estructurados para miembros accesibles [https://wg21.link/P0969R0 [HTTPS://WG21.LINK/P0969R0
    [27] P0969R0]]     		8 8 19.21*

    10.0.1*

    		5.1 2021.1 20.7
    Destruir el operador delete [https://wg21.link/P0722R3 [HTTPS://WG21.LINK/P0722R3
    [28] P0722R3]]     		9 6 19.27*

    10.0.0*

    		6.1 20.11
    Tipos clase en parámetros de plantilla de no tipo [https://wg21.link/P0732R2 [HTTPS://WG21.LINK/P0732R2
    [29] P0732R2]]     		9 12 (parcial) 19.26*(parcial)*
    19.28 (16.9)*     		6.2
    Poner en desuso la captura implícita de this mediante [=] [https://wg21.link/P0806R2 [HTTPS://WG21.LINK/P0806R2
    [30] P0806R2]]     		9 7 19.22* 5.1 20.7
    explicit(bool) [https://wg21.link/P0892R2 [HTTPS://WG21.LINK/P0892R2
    [31] P0892R2]]     		9 9 19.24*

    11.0.3*

    		5.1 2021.1 20.7
    Integrar macros de prueba de característica [https://wg21.link/P0941R2 [HTTPS://WG21.LINK/P0941R2
    [32] P0941R2]]     		5 3.4 19.15* (parcial)
    19.20*     		Sí 5.0 2021.1 20.7
    Prohibir agregados con constructores declarados por el usuario [https://wg21.link/P1008R1 [HTTPS://WG21.LINK/P1008R1
    [33] P1008R1]]     		9 8 19.20*

    10.0.1*

    		5.1 2021.1 20.7
    Función virtual constexpr [https://wg21.link/P1064R0 [HTTPS://WG21.LINK/P1064R0
    [34] P1064R0]]     		9 9 19.28 (16.9)*

    11.0.3*

    		5.1 2021.1 20.7
    Mejoras de consistencia para comparaciones [https://wg21.link/P1120R0 [HTTPS://WG21.LINK/P1120R0
    [35] P1120R0]]     		10 8 (parcial)
    10     		19.22*

    10.0.1* (parcial)

    		5.1 20.7
    char8_t [https://wg21.link/P0482R6 [HTTPS://WG21.LINK/P0482R6
    [36] P0482R6]]     		9 7* 19.22*

    10.0.0*

    		5.1 2021.1 20.7
    std::is_constant_evaluated() [https://wg21.link/P0595R2 [HTTPS://WG21.LINK/P0595R2
    [37] P0595R2]]     		9 9 19.25*

    11.0.3*

    		5.1 19.1
    Bloques try-catch constexpr [https://wg21.link/P1002R1 [HTTPS://WG21.LINK/P1002R1
    [38] P1002R1]]     		9 8 19.25*

    10.0.1*

    		5.1 20.7
    Funciones inmediatas (consteval) [https://wg21.link/P1073R3 [HTTPS://WG21.LINK/P1073R3
    [39] P1073R3]]     		10 (parcial)*
    11     		11 (parcial)
    14 (parcial)*     		19.28 (16.8)**
    (parcial)
    19.29 (16.10)*     		5.1 2021.1 20.7
    Espacios de nombres en línea anidados [https://wg21.link/P1094R2 [HTTPS://WG21.LINK/P1094R2
    [40] P1094R2]]     		9 8 19.27*

    10.0.1*

    		5.1 2021.1 20.7
    Aún otro enfoque para declaraciones restringidas [https://wg21.link/P1141R2 [HTTPS://WG21.LINK/P1141R2
    [41] P1141R2]]     		10 10 19.26* (parcial)
    19.28 (16.9)*     		6.1 20.11
    Enteros con signo son complemento a dos [https://wg21.link/P1236R1 [HTTPS://WG21.LINK/P1236R1
    [42] P1236R1]]     		9 9 Sí

    11.0.3*

    		N/A N/A yes
    dynamic_cast constexpr typeid polimórfico en expresiones constantes [https://wg21.link/P1327R1 [HTTPS://WG21.LINK/P1327R1
    [43] P1327R1]]     		10 9 19.28 (16.9)*

    11.0.3*

    		5.1 2021.1 20.7
    Cambiar el miembro activo de una unión dentro de constexpr [https://wg21.link/P1330R0 [HTTPS://WG21.LINK/P1330R0
    [44] P1330R0]]     		9 9 19.10*

    11.0.3*

    		5.1 2021.1 20.7
    Corrutinas [https://wg21.link/P0912R5 [HTTPS://WG21.LINK/P0912R5
    [45] P0912R5]]     		10 8 (parcial) 19.0 (2015)* (parcial)
    19.10* (sólo TS)
    19.28 (16.8)*

    10.0.1* (parcial)

    		5.1 2021.1
    Inicialización de agregados usando paréntesis [https://wg21.link/P0960R3 [HTTPS://WG21.LINK/P0960R3
    [46] P0960R3]]     		10 19.28 (16.8)* 5.1 2021.1 20.7
    ID: Deducción de tamaños de arrays en expresiones new [https://wg21.link/P1009R2 [HTTPS://WG21.LINK/P1009R2
    [47] P1009R2]]     		11 9 19.27*

    11.0.3*

    		5.1 2021.1 20.7
    Módulos [https://wg21.link/P1103R3 [HTTPS://WG21.LINK/P1103R3
    [48] P1103R3]]     		11 (parcial) 8 (parcial) 19.0 (2015)* (parcial)
    19.10* (sólo TS)
    19.28 (16.8)*

    10.0.1* (parcial)

    Requerimientos de Unicode más firmes [https://wg21.link/P1041R4 [HTTPS://WG21.LINK/P1041R4
    [49]
    P1041R4
    [50]
    [51] P1139R2]]     		10 Sí 19.0 (2015)* (P1041R4)
    19.26* (P1139R2)     		Sí N/A
    <=> != == [https://wg21.link/P1185R2 [HTTPS://WG21.LINK/P1185R2
    [52] P1185R2]]     		10 10 19.22* 5.1 2021.1 20.7
    ID: Funciones explícitamente marcadas como =default con diferentes especificaciones de excepción [https://wg21.link/P1286R2 [HTTPS://WG21.LINK/P1286R2
    [53] P1286R2]]     		10 9 19.28 (16.8)*

    11.0.3*

    		5.1 2021.1 20.7
    Captura de lambdas y especificadores de clase de almacenamiento de vínculos estructurados [https://wg21.link/P1091R3 [HTTPS://WG21.LINK/P1091R3
    [54]
    P1091R3
    [55]
    [56] P1381R1]]     		10 8 (parcial) 19.11*(P1381R1)
    19.24*(P1091R3)

    10.0.1* (parcial)

    		5.1 2021.1 20.7
    Permitir conversiones a arrays de límite desconocido [https://wg21.link/P0388R4 [HTTPS://WG21.LINK/P0388R4
    [57] P0388R4]]     		10 14 19.27* 6.0 2021.5 20.11
    Operaciones de contenedores constexpr [https://wg21.link/P0784R7 [HTTPS://WG21.LINK/P0784R7
    [58] P0784R7]]     		10 10 19.28 (16.9)* 6.0 2021.5 20.11
    Poner en desuso algunos usos de volatile [https://wg21.link/P1152R4 [HTTPS://WG21.LINK/P1152R4
    [59] P1152R4]]     		10 10 19.27* 6.0 2021.5 20.11
    constinit [https://wg21.link/P1143R2 [HTTPS://WG21.LINK/P1143R2
    [60] P1143R2]]     		10 10 19.29 (16.10)* 6.1 20.11
    Poner en desuso el operador coma en índices/subíndices [https://wg21.link/P1161R3 [HTTPS://WG21.LINK/P1161R3
    [61] P1161R3]]     		10 9 19.25*

    11.0.3*

    		6.0 2021.5 20.11
    Atributo [[nodiscard]] con mensaje [https://wg21.link/P1301R4 [HTTPS://WG21.LINK/P1301R4
    [62] P1301R4]]     		10 9 19.25*

    11.0.3*

    		6.0 2021.5 20.11
    Inicialización trivial por defecto en funciones constexpr [https://wg21.link/P1331R2 [HTTPS://WG21.LINK/P1331R2
    [63] P1331R2]]     		10 10 19.27* 6.1 20.11
    Declaración asm no evaluada en funciones constexpr [https://wg21.link/P1668R1 [HTTPS://WG21.LINK/P1668R1
    [64] P1668R1]]     		10 10 19.28 (16.9)* 6.1 20.11
    using enum [https://wg21.link/P1099R5 [HTTPS://WG21.LINK/P1099R5
    [65] P1099R5]]     		11 13 19.24* 6.3
    Sintetizar la comparación de tres vías para una categoría de comparación especificada [https://wg21.link/P1186R3 [HTTPS://WG21.LINK/P1186R3
    [66] P1186R3]]     		11 10 19.24* 6.0 2021.5 20.11
    ID: Atributo [[nodiscard]] para constructores [https://wg21.link/P1771R1 [HTTPS://WG21.LINK/P1771R1
    [67] P1771R1]]     		10 9 19.24*

    11.0.3*

    		6.0 2021.5 20.11
    Deducción de argumentos de plantillas de clase para alias de plantilla [https://wg21.link/P1814R0 [HTTPS://WG21.LINK/P1814R0
    [68] P1814R0]]     		10 19.27*
    Deducción de argumentos de plantillas de clase para agregados [https://wg21.link/P1816R0 [HTTPS://WG21.LINK/P1816R0
    [69]
    P1816R0
    [70]
    [71] P2082R1]]     		10(P1816R0)
    11(P2082R1)     		19.27*
    ID: Movimiento implícito para objetos más locales y referencias r-valor [https://wg21.link/P1825R0 [HTTPS://WG21.LINK/P1825R0
    [72] P1825R0]]     		11* 13 19.24* 6.0 2021.5 20.11
    Permitir hacer comparaciones por defecto por valor [https://wg21.link/P1946R0 [HTTPS://WG21.LINK/P1946R0
    [73] P1946R0]]     		10 10 19.25* 6.1 20.11
    Eliminar std::weak_equality y std::strong_equality [https://wg21.link/P1959R0 [HTTPS://WG21.LINK/P1959R0
    [74] P1959R0]]     		10 10 19.25* 6.1 20.11
    Inconsistencias con parámetros de plantilla sin tipo [https://wg21.link/P1907R1 [HTTPS://WG21.LINK/P1907R1
    [75] P1907R1]]     		10 (parcial)
    11     		12 (parcial) 19.26* 6.2
    ID: Pseudodestructores terminan los tiempos de vida de los objetos [https://wg21.link/P0593R6 [HTTPS://WG21.LINK/P0593R6
    [76] P0593R6]]     		11 11 Sí N/A N/A
    ID: Convertir de T* a bool debe considerarse de estrechamiento [https://wg21.link/P1957R2 [HTTPS://WG21.LINK/P1957R2
    [77] P1957R2]]     		10*
    11*     		11 19.27* 6.1
    Característica de C++20
          		Ponencia(s)
     
    GCC
    Clang
    MSVC
    Apple Clang
    EDG eccp
    Intel C++
    IBM XLC++
    Sun/Oracle C++
    Embarcadero C++ Builder
    Cray
    Portland Group (PGI)
    Nvidia nvcc

    Características de la biblioteca de C++20

    Acrónimos

    • TS - Especificación técnica (del inglés Technical Specification).
    • DR - Informe de Defecto.