Preprocessor

 

C++

Linguagem

Conceitos

Biblioteca de utilitários

Biblioteca cordas

Recipientes biblioteca

Biblioteca algoritmos

Biblioteca iteradores

Biblioteca numéricos

De entrada / saída da biblioteca

Biblioteca localizações

Biblioteca de expressões regulares (C++11)

Biblioteca operações atômica (C++11)

Biblioteca de suporte a discussão (C++11)

 

Linguagem C + +

Tópicos gerais Original: General topics The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Preprocessor Comentários Palavras-chave	Tabela ASCII Seqüências de escape História do C + +
Controle de fluxo Original: Flow control The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Declarações execução condicional Original: Conditional execution statements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
if statement	switch statement
Instruções de iteração Original: Iteration statements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
for loop range-for loop (C++11)	while loop do-while loop
Ir declarações Original: Jump statements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
continue statement break statement	goto statement return statement
Funções Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
declaração da função
lambda declaração da função
modelo de função
linha especificador
especificações de exceção (obsoleta)
noexcept especificador (C++11)
Exceções Original: Exceptions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
jogar expressão	bloco try-catch
Namespaces Original: Namespaces The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
declaração de namespace	aliases namespace
Tipos Original: Types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
tipos fundamentais tipos de compostos tipos de enumeração	tipos de união tipos de função
decltype specifier (C++11)
Especificadores Original: Specifiers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
cv especificadores
armazenamento duração especificadores
constexpr especificador (C++11)
auto especificador (C++11)
alignas especificador (C++11)
Inicialização Original: Initialization The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
inicialização padrão inicialização de valor de zero a inicialização copiar inicialização inicialização direta	inicialização agregada lista de inicialização (C++11) inicialização constante inicialização de referência

Literais Original: Literals The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
literais inteiro literais de caracteres literais de ponto flutuante literais de cadeia	literais booleanos nullptr (C++11) definido pelo usuário (C++11)
Expressões Original: Expressions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
categorias de valor ordem de avaliação	operadores precedência do operador
representações alternativas
Utilitários Original: Utilities The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Tipos Original: Types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
typedef declaration
tipo de alias declaração (C++11)
atributos (C++11)
Conversões Original: Casts The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
conversões implícitas
const_cast conversion
static_cast conversion
dynamic_cast conversion
reinterpret_cast conversion
Elenco C-estilo e funcional
Alocação de memória Original: Memory allocation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
new expression	delete expression
Classes Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
declaração de classe this pointer especificadores de acesso	amigo especificador listas inicializador
Classe propriedades específicas de função Original: Class-specific function properties The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
função virtual substituir especificador (C++11) final de especificador (C++11)	explícita (C++11) estática
Funções membro especiais Original: Special member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
construtor padrão copiar construtor mover construtor (C++11)	copiar atribuição mover atribuição (C++11) destruidor
Modelos Original: Templates The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
modelo de classe
modelo de função
especialização de modelo
pacotes de parâmetros (C++11)
Diversos Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Assembly embutido

 

Preprocessor

#if #ifdef #ifndef #else #elif #endif

#define #undef #,## operators

#include

#warning

#error

#pragma

#line

 

O pré-processador é executado antes da compilação começa. O resultado do pré-processamento é único arquivo que é então passado para o compilador real.

Original:

The preprocessor runs before the compilation begins. The result of preprocessing is single file which is then passed to the actual compiler.

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Directivas

As directivas de pré-processamento controlam o comportamento do pré-processador. Cada directiva ocupa uma linha e tem o seguinte formato:

Original:

The preprocessing directives control the behavior of the preprocessor. Each directive occupies one line and has the following format:

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• # personagem

  Original:

  # character

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• pré-processamento de instruções (um dos define, undef, include, if, ifdef, ifndef, else, elif, endif, line, error, warning, pragma)

  Original:

  preprocessing instruction (one of define, undef, include, if, ifdef, ifndef, else, elif, endif, line, error, warning, pragma)

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• argumentos (depende da instrução)

  Original:

  arguments (depends on the instruction)

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• quebra de linha

  Original:

  line break

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A directiva nulo (# seguido de uma quebra de linha) é permitido e não tem nenhum efeito.

Original:

The null directive (# followed by a line break) is allowed and has no effect.

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Capacidades

O pré-processador tem a fonte de recursos de tradução de arquivo:

Original:

The preprocessor has the source file translation capabilities:

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• '<div class="t-tr-text"> condicionalmente

  Original:

  conditionally

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  ' compilação de partes do arquivo de origem (controlada pela directiva #if, #ifdef, #ifndef, #else, #elif e #endif).
  Original:

  condicionalmente

  Original:

  conditionally

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  </div> compile of parts of source file (controlled by directive #if, #ifdef, #ifndef, #else, #elif and #endif).

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• ' replace' macros de texto enquanto possivelmente concatenando ou citar identificadores (controlado por directivas #define e #undef, e os operadores # e ##)

  Original:

  replace text macros while possibly concatenating or quoting identifiers (controlled by directives #define and #undef, and operators # and ##)

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• 'include' outros arquivos (controlado por #include directiva)

  Original:

  include other files (controlled by directive #include)

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• causar um 'warning' (controlada pela directiva #warning)

  Original:

  cause a warning (controlled by directive #warning)

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• causar um 'error' (controlada pela directiva #error)

  Original:

  cause an error (controlled by directive #error)

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Os seguintes aspectos do pré-processador pode ser controlado:

Original:

The following aspects of the preprocessor can be controlled:

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• '<div class="t-tr-text"> implementação definido

  Original:

  implementation defined

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  ' comportamento (controlado por directivas #pragma)
  Original:

  implementação definido

  Original:

  implementation defined

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  </div> behavior (controlled by directives #pragma)

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• '<div class="t-tr-text"> nome do arquivo e informações de linha

  Original:

  file name and line information

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  ' disponível para o pré-processador (controlada por directivas #line)
  Original:

  nome do arquivo e informações de linha

  Original:

  file name and line information

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  </div> available to the preprocessor (controlled by directives #line)

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