Espaços nominais
Variantes
    Ações

      std::basic_string::empty

      De cppreference.com
      See More

      This page has been machine-translated from the English version of the wiki using Google Translate.

      The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

      Click here for the English version of this page

      <metanoindex/>

       
      C++
       
      Biblioteca cordas
      Strings terminadas
      Original:
      Null-terminated strings
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      Cadeias de bytes
      Multibyte cordas
      Cordas de largura
      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.
       
      std::basic_string
      Funções de membro
      Original:
      Member functions
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      basic_string::basic_string
      basic_string::operator=
      basic_string::assign
      basic_string::get_allocator
      acesso. Elemento
      Original:
      Element access
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      basic_string::at
      basic_string::operator[]
      basic_string::front(C++11)
      basic_string::back(C++11)
      basic_string::data
      basic_string::c_str
      Iteradores
      Original:
      Iterators
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      basic_string::begin
      basic_string::cbegin
      (C++11)
      basic_string::end
      basic_string::cend
      (C++11)
      basic_string::rbegin
      basic_string::crbegin
      (C++11)
      basic_string::rend
      basic_string::crend
      (C++11)
      Capacidade
      Original:
      Capacity
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      basic_string::empty
      basic_string::size
      basic_string::length
      basic_string::max_size
      basic_string::reserve
      basic_string::capacity
      basic_string::shrink_to_fit(C++11)
      Operações
      Original:
      Operations
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      basic_string::clear
      basic_string::insert
      basic_string::erase
      basic_string::push_back
      basic_string::pop_back(C++11)
      basic_string::append
      basic_string::operator+=
      basic_string::compare
      basic_string::replace
      basic_string::substr
      basic_string::copy
      basic_string::resize
      basic_string::swap
      Pesquisar
      Original:
      Search
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      basic_string::find
      basic_string::rfind
      basic_string::find_first_of
      basic_string::find_first_not_of
      basic_string::find_last_of
      basic_string::find_last_not_of
      Constantes
      Original:
      Constants
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      basic_string::npos
      Não-membros funções
      Original:
      Non-member functions
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)(C++11)(C++11)
      (C++11)(C++11)
      (C++11)(C++11)(C++11)
      (C++11)
      (C++11)
      Classes auxiliares
      Original:
      Helper classes
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
       
      <tbody> </tbody>
      bool empty() const;
      Verifica se a string não tem caracteres, ou seja, se begin() == end().
      Original:
      Checks if the string has no characters, i.e. whether begin() == end().
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      Parâmetros

      (Nenhum)
      Original:
      (none)
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      Valor de retorno

      true se a cadeia estiver vazia, false contrário
      Original:
      true if the string is empty, false otherwise
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      Complexidade

      Constante
      Original:
      Constant
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      Veja também

      		 returns the number of characters
      (função pública membro) [edit]