unordered_map::size_type
The type of an unsigned distance between two elements.
typedef T2 size_type;
Remarks
The unsigned integer type describes an object that can represent the length of any controlled sequence. It is described here as a synonym for the implementation-defined type T2.
Example
// std_tr1__unordered_map__unordered_map_size_type.cpp
// compile with: /EHsc
#include <unordered_map>
#include <iostream>
typedef std::unordered_map<char, int> Mymap;
int main()
{
Mymap c1;
Mymap::size_type sz = c1.size();
std::cout << "size == " << sz << std::endl;
return (0);
}
size == 0
Requirements
Header: <unordered_map>
Namespace: std