std::max

 

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is_execution_policy	execution::seqexecution::parexecution::par_unseq	execution::sequenced_policyexecution::parallel_policyexecution::parallel_unsequenced_policy
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all_ofany_ofnone_of (C++11)(C++11)(C++11) for_each for_each_n (C++17)	countcount_if mismatch equal adjacent_find	findfind_iffind_if_not (C++11) find_end find_first_of	search search_n lexicographical_compare lexicographical_compare_3way (C++20)
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copycopy_if (C++11) copy_n (C++11) copy_backward move (C++11) move_backward (C++11) transform	fill fill_n generate generate_n swap iter_swap swap_ranges sample (C++17)	removeremove_if replacereplace_if reverse rotate unique random_shuffle (hasta C++17)	remove_copyremove_copy_if replace_copyreplace_copy_if reverse_copy rotate_copy unique_copy shuffle (C++11)
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uninitialized_copy uninitialized_move (C++17)	uninitialized_copy_n (C++11) uninitialized_move_n (C++17)	uninitialized_fill	uninitialized_fill_n
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is_partitioned (C++11) partition_point (C++11)	partition partition_copy (C++11)	stable_partition
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is_sorted (C++11) is_sorted_until (C++11)	sort stable_sort	partial_sort partial_sort_copy	nth_element
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lower_bound	upper_bound	binary_search	equal_range
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max max_element	min min_element	minmax (C++11) minmax_element (C++11)	clamp (C++17) compare_3way (C++20)
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is_permutation (C++11)	next_permutation	prev_permutation
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iota (C++11) inner_product adjacent_difference	accumulate reduce (C++17) transform_reduce (C++17)	partial_sum inclusive_scan (C++17) exclusive_scan (C++17)	transform_inclusive_scan (C++17) transform_exclusive_scan (C++17)
Bibliotecas C
qsort	bsearch

 

Definido en la cabecera <algorithm>
template<class T > const T& max(const T& a, const T& b );	(1)
template<class T, class Compare > const T& max(const T& a, const T& b, Compare comp );	(2)
template<class T > T max(std::initializer_list<T> ilist);	(3)	(desde C++11)
template<class T, class Compare > T max(std::initializer_list<T> ilist, Compare comp );	(4)	(desde C++11)

1-2)

Devuelve el mayor de los dos valores .

Original:

Returns the greater of the two values.

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3-4)

Devuelve el mayor de los valores en la lista de inicializadores ilist .

Original:

Returns the greatest of the values in initializer list ilist.

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Las versiones (1,3) operator< utilizar para comparar los valores, las versiones (2,4) utilizar la función de comparación dado comp .

Original:

The (1,3) versions use operator< to compare the values, the (2,4) versions use the given comparison function comp.

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Parámetros

a, b	-	los valores para comparar Original: the values to compare The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ilist	-	inicializador lista con los valores a comparar Original: initializer list with the values to compare 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 if a is less than b. 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 T can be implicitly converted to both of them. ​
Requerimientos de tipo
- T debe reunir los requerimientos de LessThanComparable. for the overloads (1) and (3)
- T debe reunir los requerimientos de CopyConstructible. for the overloads (3) and (4)

Valor de retorno

1-2)

El mayor de a y b. Si son equivalentes, vuelve a .

Original:

The greater of a and b. If they are equivalent, returns a.

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3-4)

El mayor valor en ilist. Si varios valores son equivalentes a los más grandes, más a la izquierda devuelve el uno .

Original:

The greatest value in ilist. If several values are equivalent to the greatest, returns the leftmost one.

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Complejidad

1-2)

Constant

Original:

Constant

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3-4)

Lineal en ilist.size()

Original:

Linear in ilist.size()

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Posible implementación

Primera versión
template<class T>const T& max(const T& a, const T& b){return(a < b)? b : a;}
Segunda versión
template<class T, class Compare>const T& max(const T& a, const T& b, Compare comp){return(comp(a, b))? b : a;}
Tercera versión
template<class T > T max(std::initializer_list<T> ilist){return*std::max_element(ilist.begin(), ilist.end());}
Cuarta versión
template<class T, class Compare > T max(std::initializer_list<T> ilist, Compare comp ){return*std::max_element(ilist.begin(), ilist.end(), comp);}

Ejemplo

#include <algorithm>#include <iostream>#include <string> int main(){std::cout<<"larger of 1 and 9999: "<< std::max(1, 9999)<<'\n'<<"larger of 'a', and 'b': "<< std::max('a', 'b')<<'\n'<<"longest of \"foo\", \"bar\", and \"hello\": "<< std::max({"foo", "bar", "hello"}, [](conststd::string& s1, conststd::string& s2){return s1.size()< s2.size();})<<'\n';}

Salida:

larger of 1 and 9999: 9999 larger of 'a', and 'b': b longest of "foo", "bar", and "hello": hello

Ver también

min	devuelve el menor de los dos elementos Original: returns the smaller of two elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (plantilla de función)
minmax (C++11)	devuelve el. más grande y el más pequeño de los dos elementos Original: returns the larger and the smaller of two elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (plantilla de función)
max_element	devuelve el elemento más grande de un rango Original: returns the largest element in a range The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (plantilla de función)