load_factor.pass.cpp [plain text]
#include <unordered_map>
#include <string>
#include <cassert>
#include <cfloat>
int main()
{
{
typedef std::unordered_multimap<int, std::string> C;
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));
assert(fabs(c.load_factor() - (float)c.size()/c.bucket_count()) < FLT_EPSILON);
}
{
typedef std::unordered_multimap<int, std::string> C;
typedef std::pair<int, std::string> P;
const C c;
assert(c.load_factor() == 0);
}
}