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      C++
       
      Linguagem C++
      Tópicos gerais
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      General topics
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      Controle de fluxo
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      Flow control
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      Declarações execução condicional
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      Conditional execution statements
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      Instruções de iteração
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      Iteration statements
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      Ir declarações
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      Jump statements
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      Funções
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      Functions
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      declaração da função
      lambda declaração da função
      modelo de função
      linha especificador
      especificações de exceção(obsoleta)
      noexcept especificador(C++11)
      Exceções
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      Exceptions
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      Namespaces
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      Namespaces
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      Tipos
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      Types
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      decltype specifier(C++11)
      Especificadores
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      Specifiers
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      cv especificadores
      armazenamento duração especificadores
      constexpr especificador(C++11)
      auto especificador(C++11)
      alignas especificador(C++11)
      Inicialização
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      Initialization
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      Literais
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      Literals
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      Expressões
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      Expressions
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      representações alternativas
      Utilitários
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      Utilities
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      Tipos
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      Types
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      typedef declaration
      tipo de alias declaração(C++11)
      atributos(C++11)
      Conversões
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      Casts
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      conversões implícitas
      const_cast conversion
      static_cast conversion
      dynamic_cast conversion
      reinterpret_cast conversion
      Elenco C-estilo e funcional
      Alocação de memória
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      Memory allocation
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      Classes
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      Classes
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      Classe propriedades específicas de função
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      Class-specific function properties
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      Funções membro especiais
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      Special member functions
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      Modelos
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      Templates
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      modelo de classe
      modelo de função
      especialização de modelo
      pacotes de parâmetros(C++11)
      Diversos
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      Miscellaneous
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      Assembly embutido
       
      Preprocessor
       
      Inclui arquivo de outra fonte em arquivo de fonte de corrente na linha imediatamente após a diretiva.
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      Includes other source file into current source file at the line immediately after the directive .
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      Índice

      [editar]Sintaxe

      #linelineno (1)
      #linelineno"filename" (2)

      [editar]Explicação

      Altera o número da linha atual de pré-processamento para lineno. expansões do __LINE__ macro além deste ponto vai se expandir para lineno mais o número de linhas de código fonte reais encontradas desde.
      Original:
      Changes the current preprocessor line number to lineno. Expansions of the macro __LINE__ beyond this point will expand to lineno plus the number of actual source code lines encountered since.
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      2)
      Também altera o nome do arquivo atual pré-processador para filename. Expansões da macro __FILE__ a partir deste ponto vai produzir filename.
      Original:
      Also changes the current preprocessor file name to filename. Expansions of the macro __FILE__ from this point will produce filename.
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      Qualquer fichas de pré-processamento (constantes macro ou expressões) são permitidos como argumentos para #line, desde que se expandir para um decimal inteiro válido, opcionalmente, após uma seqüência de caracteres válido.
      Original:
      Any preprocessing tokens (macro constants or expressions) are permitted as arguments to #line as long as they expand to a valid decimal integer optionally following a valid character string.
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      [editar]Notas

      Esta directiva é usada por algumas ferramentas de código automáticas geração que produzem C + arquivos de origem + a partir de um arquivo escrito em outro idioma. Nesse caso, as directivas #line pode ser inserido no gerado arquivo C + + números de linha referência eo nome do arquivo (humano-editável) fonte original.
      Original:
      This directive is used by some automatic code generation tools which produce C++ source files from a file written in another language. In that case, #line directives may be inserted in the generated C++ file referencing line numbers and the file name of the original (human-editable) source file.
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      [editar]Exemplo

      #include <cassert>#define FNAME "test.cc"int main(){#line 777 FNAMEassert(2+2==5);}

      Saída: 

      test: test.cc:777: int main(): Assertion `2+2 == 5' failed.
      Obtida de "https://pt.cppreference.com/mwiki/index.php?title=cpp/preprocessor/line&oldid=21593"
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