#include <regex>
#include <cassert>
int main()
{
{
std::regex phone_numbers("\\d{3}-(\\d{4})");
const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
std::vector<int> v;
v.push_back(-1);
v.push_back(-1);
std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book)-1,
phone_numbers, v);
assert(i != std::cregex_token_iterator());
assert(i->str() == "start ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "start ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == " end");
++i;
assert(i == std::cregex_token_iterator());
}
{
std::regex phone_numbers("\\d{3}-(\\d{4})");
const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
std::vector<int> v;
v.push_back(-1);
v.push_back(0);
std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book)-1,
phone_numbers, v);
assert(i != std::cregex_token_iterator());
assert(i->str() == "start ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "555-1234");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "555-2345");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "555-3456");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == " end");
++i;
assert(i == std::cregex_token_iterator());
}
{
std::regex phone_numbers("\\d{3}-(\\d{4})");
const char phone_book[] = "start 555-1234, 555-2345, 555-3456 end";
std::vector<int> v;
v.push_back(-1);
v.push_back(0);
v.push_back(1);
std::cregex_token_iterator i(std::begin(phone_book), std::end(phone_book)-1,
phone_numbers, v);
assert(i != std::cregex_token_iterator());
assert(i->str() == "start ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "555-1234");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "1234");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "555-2345");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "2345");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == ", ");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "555-3456");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == "3456");
++i;
assert(i != std::cregex_token_iterator());
assert(i->str() == " end");
++i;
assert(i == std::cregex_token_iterator());
}
}