equal_range_const.pass.cpp [plain text]
#include <unordered_map>
#include <string>
#include <cassert>
int main()
{
{
typedef std::unordered_map<int, std::string> C;
typedef C::const_iterator I;
typedef std::pair<int, std::string> P;
P a[] =
{
P(10, "ten"),
P(20, "twenty"),
P(30, "thirty"),
P(40, "fourty"),
P(50, "fifty"),
P(60, "sixty"),
P(70, "seventy"),
P(80, "eighty"),
};
const C c(std::begin(a), std::end(a));
std::pair<I, I> r = c.equal_range(30);
assert(std::distance(r.first, r.second) == 1);
assert(r.first->first == 30);
assert(r.first->second == "thirty");
r = c.equal_range(5);
assert(std::distance(r.first, r.second) == 0);
}
}