erase_range.pass.cpp [plain text]
#include <unordered_map>
#include <string>
#include <cassert>
int main()
{
{
typedef std::unordered_map<int, std::string> C;
typedef std::pair<int, std::string> P;
P a[] =
{
P(1, "one"),
P(2, "two"),
P(3, "three"),
P(4, "four"),
P(1, "four"),
P(2, "four"),
};
C c(a, a + sizeof(a)/sizeof(a[0]));
C::const_iterator i = c.find(2);
C::const_iterator j = next(i, 1);
C::iterator k = c.erase(i, i);
assert(k == i);
assert(c.size() == 4);
assert(c.at(1) == "one");
assert(c.at(2) == "two");
assert(c.at(3) == "three");
assert(c.at(4) == "four");
k = c.erase(i, j);
assert(c.size() == 3);
assert(k == j);
assert(c.at(1) == "one");
assert(c.at(3) == "three");
assert(c.at(4) == "four");
k = c.erase(c.cbegin(), c.cend());
assert(k == c.cend());
assert(c.size() == 0);
assert(k == c.end());
}
}