Espaços nominais
Variantes
Acções

std::basic_string::begin, std::basic_string::cbegin

Da cppreference.com
< cpp‎ | string‎ | basic string
 
 
Biblioteca cordas
Strings terminadas
Original:
Null-terminated strings
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Cadeias de bytes
Multibyte cordas
Cordas de largura
Classes
Original:
Classes
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basic_string
char_traits
 
std::basic_string
Funções de membro
Original:
Member functions
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basic_string::basic_string
basic_string::operator=
basic_string::assign
basic_string::get_allocator
acesso. Elemento
Original:
Element access
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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
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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
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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
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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
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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
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basic_string::npos
Não-membros funções
Original:
Non-member functions
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operator+
operator==
operator!=
operator<
operator>
operator<=
operator>=
swap(std::basic_string)
operator<<
operator>>
getline
stoi
stol
stoll
(C++11)
(C++11)
(C++11)
stoul
stoull
(C++11)
(C++11)
stof
stod
stold
(C++11)
(C++11)
(C++11)
to_string(C++11)
to_wstring(C++11)
Classes auxiliares
Original:
Helper classes
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hash<std::string>
hash<std::wstring>
hash<std::u32string>
hash<std::u16string>
(C++11)
 
iterator begin();
const_iterator begin() const;
const_iterator cbegin() const;
(a partir do C++ 11)

Retorna um iterador para o primeiro caractere de uma string.

Índice

[editar] Parameters

(none)

[editar] Return value

iterador para o primeiro caractere

[editar] Exceptions

(none) (até C + 11)
noexcept specification:  
noexcept
  (a partir do C++ 11)
(a partir do C++ 11)

[editar] Complexity

costante

[editar] Example

#include <string>
#include <iostream>
 
int main()
{
    std::string s("Exemplar");
    *s.begin() = 'e';
    std::cout << s <<'\n';
 
    auto i = s.cbegin();
    std::cout << *i << '\n';
//  *i = 'E'; // erro: i é um iterador contante
}

Output:

exemplar
e

[editar] See also


(C++11)
retorna um iterador para o fim
Original:
returns an iterator to the end
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(função pública membro) [edit]