Espacios de nombres
Variantes
Acciones

std::includes

De cppreference.com
< cpp‎ | algorithm

 
 
Algoritmo biblioteca
Funciones
Original:
Functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Para no modificar la secuencia de las operaciones
Original:
Non-modifying sequence operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Modificación de la secuencia de operaciones
Original:
Modifying sequence operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Particionamiento operaciones
Original:
Partitioning operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Clasificación de las operaciones (en rangos ordenados)
Original:
Sorting operations (on sorted ranges)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Las operaciones binarias de búsqueda (en rangos ordenados)
Original:
Binary search operations (on sorted ranges)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Conjunto de operaciones (en rangos ordenados)
Original:
Set operations (on sorted ranges)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
merge
inplace_merge
includes
Operaciones del montón
Original:
Heap operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Mínimo / máximo de operaciones
Original:
Minimum/maximum operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Operaciones numéricas
Original:
Numeric operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
C biblioteca
Original:
C library
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 
Defined in header <algorithm>
template< class InputIt1, class InputIt2 >

bool includes( InputIt1 first1, InputIt1 last1,

               InputIt2 first2, InputIt2 last2 );
(1)
template< class InputIt1, class InputIt2 >

bool includes( InputIt1 first1, InputIt1 last1,

               InputIt2 first2, InputIt2 last2, Compare comp );
(2)
Regreso true si cada elemento de la gama [first2, last2) ordenados se encuentra dentro de la gama [first, last) ordenados. También regresa true [first2, last2) si está vacío .
Original:
Returns true if every element from the sorted range [first2, last2) is found within the sorted range [first, last). Also returns true if [first2, last2) is empty.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
La primera versión espera que ambas gamas se ordenen con operator<, la segunda versión espera que se solucionó con la función de comparación dado comp .
Original:
The first version expects both ranges to be sorted with operator<, the second version expects them to be sorted with the given comparison function comp.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Contenido

[editar] Parámetros

first1, last1 -
la gama ordenada de elementos a examinar
Original:
the sorted range of elements to examine
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
first2, last2 -
la gama ordenada de elementos que desea buscar
Original:
the sorted range of elements to search for
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
comp - comparison function which returns ​true if the first argument is less than the second.

The signature of the comparison function should be equivalent to the following:

 bool cmp(const Type1 &a, const Type2 &b);

The signature does not need to have const &, but the function must not modify the objects passed to it.
The types Type1 and Type2 must be such that an object of type InputIt can be dereferenced and then implicitly converted to both of them. ​

Type requirements
-
InputIt must meet the requirements of InputIterator.

[editar] Valor de retorno

true si cada elemento de [first2, last2) es un miembro de [first, last) .
Original:
true if every element from [first2, last2) is a member of [first, last).
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Complejidad

En la mayoría de las comparaciones 2·(N1+N2-1), donde N1 = std::distance(first1, last1) y N2 = std::distance(first2, last2) .
Original:
At most 2·(N1+N2-1) comparisons, where N1 = std::distance(first1, last1) and N2 = std::distance(first2, last2).
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Posible implementación

First version
template<class InputIt1, class InputIt2>
bool includes(InputIt1 first1, InputIt1 last1,
              InputIt2 first2, InputIt2 last2)
{
    for (; first2 != last2; ++first1)
    {
        if (first1 == last1 || *first2 < *first1)
            return false;
        if ( !(*first1 < *first2) )
            ++first2;
    }
    return true;
}
Second version
template<class InputIt1, class InputIt2>
bool includes(InputIt1 first1, InputIt1 last1,
              InputIt2 first2, InputIt2 last2, Compare comp)
{
    for (; first2 != last2; ++first1)
    {
        if (first1 == last1 || comp(*first2, *first1))
            return false;
        if (!comp(*first1, *first2))
            ++first2;
    }
    return true;
}

[editar] Ejemplo

#include <iostream>
#include <algorithm>
#include <cctype>
 
int main()
{
  std::vector<char> v1 {'a', 'b', 'c', 'f', 'h', 'x'};
  std::vector<char> v2 {'a', 'b', 'c'};
  std::vector<char> v3 {'a', 'c'};
  std::vector<char> v4 {'g'};
  std::vector<char> v5 {'a', 'c', 'g'};
  std::vector<char> v6;
 
  for (auto i : v1) std::cout << i << ' ';
  std::cout << "includes:\n";
 
  for (auto i : v2) std::cout << i << ' ';
  std::cout << ": " << std::includes(v1.begin(), v1.end(), v2.begin(), v2.end()) << '\n';
  for (auto i : v3) std::cout << i << ' ';
  std::cout << ": " << std::includes(v1.begin(), v1.end(), v3.begin(), v3.end()) << '\n';
  for (auto i : v4) std::cout << i << ' ';
  std::cout << ": " << std::includes(v1.begin(), v1.end(), v4.begin(), v4.end()) << '\n';
  for (auto i : v5) std::cout << i << ' ';
  std::cout << ": " << std::includes(v1.begin(), v1.end(), v5.begin(), v5.end()) << '\n';
  for (auto i : v6) std::cout << i << ' ';
  std::cout << ": " << std::includes(v1.begin(), v1.end(), v6.begin(), v6.end()) << '\n';
 
  auto cmp_nocase = [](char a, char b) {
    return std::tolower(a) < std::tolower(b);
  }
  std::vector<char> v7 {'A', 'B', 'C'};
  for (auto i : v7) std::cout << i << ' ';
  std::cout << ": "
            << std::includes(v1.begin(), v1.end(), v7.begin(), v7.end(), cmp_nocase)
            << '\n';
}

Output:

a b c f h x includes:
a b c : 1
a c : 1
g : 0
a c g : 0
A B C : 1

[editar] Ver también

calcula la diferencia entre los dos conjuntos
Original:
computes the difference between two sets
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función de plantilla) [edit]
searches for a range of elements
(función de plantilla) [edit]