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#include <algorithm>
#include <string>
#include <iostream>
#include <iterator>
using namespace std;
bool pred(std::string const &str)
{
return "aeiou"s.find(str.front()) != string::npos;
}
void show(string const *begin, string const *end)
{
copy(begin, end, ostream_iterator<string>(cout, ", "));
cout << '\n';
}
int main()
{
string sarr[] =
{
"alpha", "bravo", "charley", "delta", "echo",
"foxtrot", "golf", "hotel"
};
string trueDest[size(sarr)];
string falseDest[size(sarr)];
pair<string *, string *> lastTF = // lastTrue, lastFalse
partition_copy(sarr, end(sarr), trueDest, falseDest, pred);
cout << "pred() == true elements:\n";
show(trueDest, lastTF.first);
cout << "pred() == false elements:\n";
show(falseDest, lastTF.second);
}
// Displays:
// pred() == true elements:
// alpha, echo,
// pred() == false elements:
// bravo, charley, delta, foxtrot, golf, hotel,
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