/* The following code example is taken from the book
* "The C++ Standard Library - A Tutorial and Reference"
* by Nicolai M. Josuttis, Addison-Wesley, 1999
*
* (C) Copyright Nicolai M. Josuttis 1999.
* Permission to copy, use, modify, sell and distribute this software
* is granted provided this copyright notice appears in all copies.
* This software is provided "as is" without express or implied
* warranty, and with no claim as to its suitability for any purpose.
*/
#include <iostream>
#include <vector>
#include <deque>
#include <list>
#include <set>
#include <map>
#include <string>
#include <algorithm>
#include <iterator>
#include <functional>
#include <numeric>
using namespace std;
/* PRINT_ELEMENTS()
* - prints optional C-string optcstr followed by
* - all elements of the collection coll
* - separated by spaces
*/
template <class T>
inline void PRINT_ELEMENTS (const T& coll, const char* optcstr="")
{
typename T::const_iterator pos;
std::cout << optcstr;
for (pos=coll.begin(); pos!=coll.end(); ++pos) {
std::cout << *pos << ' ';
}
std::cout << std::endl;
}
/* INSERT_ELEMENTS (collection, first, last)
* - fill values from first to last into the collection
* - NOTE: NO half-open range
*/
template <class T>
inline void INSERT_ELEMENTS (T& coll, int first, int last)
{
for (int i=first; i<=last; ++i) {
coll.insert(coll.end(),i);
}
}
// return whether the second object has double the value of the first
bool doubled (int elem1, int elem2)
{
return elem1 * 2 == elem2;
}
int main()
{
vector<int> coll;
coll.push_back(1);
coll.push_back(3);
coll.push_back(2);
coll.push_back(4);
coll.push_back(5);
coll.push_back(5);
coll.push_back(0);
PRINT_ELEMENTS(coll,"coll: ");
// search first two elements with equal value
vector<int>::iterator pos;
pos = adjacent_find (coll.begin(), coll.end());
if (pos != coll.end()) {
cout << "first two elements with equal value have position "
<< distance(coll.begin(),pos) + 1
<< endl;
}
}
/*
coll: 1 3 2 4 5 5 0
first two elements with equal value have position 5
*/
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Post Data:2017-01-02 16:04:23
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