Varianti

    std::set::begin, std::set::cbegin

    Da cppreference.com.

    [edit template]
     
    C++
     
    Contenitori libreria
     
    std::set
    Membri funzioni
    Original:
    Member functions
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    set::set
    set::~set
    set::operator=
    set::get_allocator
    Iteratori
    Original:
    Iterators
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    set::begin
    set::cbegin
    (C++11)
    set::end
    set::cend
    (C++11)
    set::rbegin
    set::crbegin
    (C++11)
    set::rend
    set::crend
    (C++11)
    Capacità
    Original:
    Capacity
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    set::empty
    set::size
    set::max_size
    Modificatori
    Original:
    Modifiers
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    set::clear
    set::insert
    set::emplace(C++11)
    set::emplace_hint(C++11)
    set::erase
    set::swap
    Lookup
    Original:
    Lookup
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    set::count
    set::find
    set::equal_range
    set::lower_bound
    set::upper_bound
    Osservatori
    Original:
    Observers
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    set::key_comp
    set::value_comp
     
    <tbody> </tbody> <tbody class="t-dcl-rev "> </tbody><tbody> </tbody> <tbody class="t-dcl-rev "> </tbody><tbody> </tbody>
    iterator begin();
    		 (fino al c++11)
    iterator begin() noexcept;
    		 (dal C++11)
    const_iterator begin() const;
    		 (fino al c++11)
    const_iterator begin() const noexcept;
    		 (dal C++11)
    const_iterator cbegin() const noexcept;

    Restituisce un iteratore al primo elemento del container.

    Se il container è vuoto, l'iteratore restituito sarà uguale a end().

    Parametri

    (nessuno)

    Valore restituito

    Iteratore al primo elemento

    Complessità

    Costante Template:cpp/container/constant iterator note

    Example

    #include <set>
#include <iostream>
 
int main() {
  std::set<int> set = { 6, 1, 3, 4, 2, 5 };
  for (auto it = set.begin(); it != set.end(); ++it)
    std::cout << *it << "\n";
}

    Possible output: 

    1
2
3
4
5
6

    Vedi anche
    restituisce un iteratore fino alla fine
    Original:
    returns an iterator to the end
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    (metodo pubblico) [modifica]