C++ (Cpp) Multiset::size Examples

Programming Language: C++ (Cpp)

Class/Type: Multiset

Method/Function: size

Examples at hotexamples.com: 3

Multiset is a container in C++ that allows storage of multiple values of the same type, with each value being unique. Multiset automatically arranges the elements in sorted order. The size() function in multiset returns the total number of elements present in the set.

Example:

```c++
#include
#include

int main() {
std::multiset mySet {2, 4, 1, 6, 8};
std::cout << "Number of elements in set: " << mySet.size() << std::endl;
return 0;
}

This code creates a multiset of integers and inserts five integers into it. The size() function is then called to return the total number of elements present in the set, which is then printed to the console. The output of the program would be:

Number of elements in set: 5 ``` The multiset container is part of the C++ Standard Library, which means it is already included in the C++ compiler implementation. Therefore, there is no need to use any external package library.

C++ (Cpp) Multiset::size - 3 examples found. These are the top rated real world C++ (Cpp) examples of Multiset::size extracted from open source projects. You can rate examples to help us improve the quality of examples.

Frequently Used Methods

Show Hide

insert(6)

uniqueSize(6)

get(5)

forEach(3)

size(3)

begin(1)

count(1)

end(1)

erase(1)

eraseAll(1)

Example #1

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File: Multiset2.cpp Project: shirley-zhou/CS32

void subtract(const Multiset& ms1, const Multiset& ms2, Multiset& result)
{
	//make sure result is empty
	if (result.size() != 0)
	{
		Multiset temp;
		result = temp;
	}

	for (int m1 = 0; m1 < ms1.uniqueSize(); m1++)
	{
		ItemType m1_val;
		int n1 = ms1.get(m1, m1_val);
		for (int m2 = 0; m2 < ms2.uniqueSize(); m2++)
		{
			ItemType m2_val;
			int n2 = ms2.get(m2, m2_val);

			if (m1_val == m2_val && n1 > n2)
			{
				for (int count = n1-n2; count > 0; count--) //insert n1-n2 number of iterations
					result.insert(m1_val);
			}
		}
	}
}

Example #2

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inline void test_multiset_insert(Multiset c)
{
    using phx::arg_names::arg1;
    using phx::arg_names::arg2;
    using phx::arg_names::arg3;

    typename Multiset::value_type const value = *c.begin();
    typename Multiset::iterator c_begin = c.begin();
    std::size_t old_size = c.size();
    // wrapper for
    // iterator insert(iterator where, const value_type& val);
    typename Multiset::iterator it =
        phx::insert(arg1, arg2, arg3)(c, c_begin, value);

    if (test(*it != value || c.size() != old_size + 1)) {
        cerr << "Failed " << typeid(Multiset).name()
       << " test_multiset_insert 1\n";
        return;
    }

    // wrapper for
    // iterator insert(const value_type& val);
    typename Multiset::value_type const value2(1400);
    it = phx::insert(arg1, arg2)(c, value2);
    if (test(it == c.end())) {
        cerr << "Failed " << typeid(Multiset).name()
       << " test_multiset_insert 2\n";
        return;
    }

    // wrapper for
    // template<class InIt>
    // void insert(InIt first, InIt last);
    Multiset const const_c = build_assoc<Multiset>();
    typename Multiset::size_type size = c.size();
    phx::insert(arg1, const_c.begin(), const_c.end())(c);
    if (test(c.size() != size + const_c.size())) {
        cerr << "Failed " << typeid(Multiset).name()
       << " test_multiset_insert 3\n";
        return;
    }
}

Example #3

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File: main.cpp Project: Jason-liujc/CSLowerDivs

void test()
{
    Multiset ulms;
    assert(ulms.insert(20));
    assert(ulms.insert(10));
    assert(ulms.insert(20));
    assert(ulms.insert(30));
    assert(ulms.insert(20));
    assert(ulms.insert(10));
    assert(ulms.size() == 6  &&  ulms.uniqueSize() == 3);
    assert(ulms.count(10) == 2);
    assert(ulms.count(20) == 3);
    assert(ulms.count(30) == 1);
    assert(ulms.count(40) == 0);
}