Return an iterator positioned at the maximum element in the range [ first, last ). The first version uses operator< to perform the comparisons, whereas the second version uses the binary function compare .

Declaration


  
#include <algorithm>

template< class ForwardIterator >
ForwardIterator max_element( ForwardIterator first, ForwardIterator last );

template< class ForwardIterator, class Compare >
ForwardIterator max_element
  (
  ForwardIterator first,
  ForwardIterator last,
  Compare compare
  );

Complexity

Time complexity is linear, as ( last - first ) comparisons are performed. Space complexity is constant.

Example <ospace/osstd/examples/maxelem1.cpp>


    #include <iostream>
#include <algorithm>

int numbers[ 6 ] = { 4, 10, 56, 11, -42, 19 };

void
main()
  {
  cout << *max_element( numbers, numbers + 6 ) << "\n";
  }

56

Example <ospace/osstd/examples/maxelem2.cpp>


    #include <iostream>
#include <string.h>
#include <algorithm>

char* names[] = { "Brett", "Graham", "Jack", "Mike", "Todd" };

bool
str_compare( const char* a_, const char* b_ )
  {
  return ::strcmp( a_, b_ ) < 0 ? 1 : 0;
  }

void
main()
  {
  const unsigned names_ct = sizeof( names )/sizeof( names[ 0 ] );
  cout << *max_element( names, names + names_ct, str_compare ) << "\n";
  }

Todd

max_element

Library

Declaration

Complexity

Example <ospace/osstd/examples/maxelem1.cpp>

Example <ospace/osstd/examples/maxelem2.cpp>