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      bool literal

      De cppreference.com
       
      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
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      noexcept especificador (C++11)
      Exceções
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      Exceptions
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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)
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      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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      typedef declaration
      tipo de alias declaração (C++11)
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      Conversões
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      conversões implícitas
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      Elenco C-estilo e funcional
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      Memory allocation
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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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      modelo de classe
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      Diversos
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      Miscellaneous
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      Assembly embutido
       

      Sintaxe

      true (1)
      false (2)

      Explicação

      O tipo bool, que é uma palavra reservada da linguagem C++, pode assumir dois valores diferentes, ou seja, ele pode assumir o valor true, que significa verdadeiro e é representado pelo número 1; ou ele pode assumir o valor false, que significa falso e é representando pelo número 0.

      Exemplo

      #include <iostream>

int main() {
   bool Vrf = false;

   if (Vrf == true) {
      // caso a variável contenha o valor true.
      std::count << "Condição Verdadeira." << std::endl;
   } else {
      // caso a variável contenha o valor false.
      std::count << "Condição Falsa." << std::endl;
   }
   return 00.
}

      Saída: 

      Condição Falsa.
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