Материал из C\C++ эксперт
Is the search result pointing to the end of a vector
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
bool greater10( int value );
int main()
{
const int SIZE = 10;
int a[ SIZE ] = { 10, 2, 17, 5, 16, 8, 13, 11, 20, 7 };
vector< int > v( a, a + SIZE );
vector< int >::iterator location;
location = find( v.begin(), v.end(), 16 );
if ( location != v.end() )
cout << "\n\nFound 16 at location " << ( location - v.begin() );
else
cout << "\n\n16 not found";
location = find( v.begin(), v.end(), 100 );
if ( location != v.end() )
cout << "\nFound 100 at location " << ( location - v.begin() );
else
cout << "\n100 not found";
location = find_if( v.begin(), v.end(), greater10 );
if ( location != v.end() )
cout << "\n\nThe first value greater than 10 is " << *location << "\nfound at location " << ( location - v.begin() );
else
cout << "\n\nNo values greater than 10 were found";
return 0;
}
bool greater10( int value ) { return value > 10; }
