std::multimap::max_size
From cppreference.com
| size_type max_size() const;
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Returns the maximum number of elements the container is able to hold due to system or library implementation limitations, i.e. std::distance(begin(), end()) for the largest container.
Contents |
[edit] Parameters
(none)
[edit] Return value
Maximum number of elements.
[edit] Exceptions
| (none) | (until C++11) |
noexcept specification: noexcept |
(since C++11) |
[edit] Complexity
Constant.
[edit] Notes
This value is typically equal to std::numeric_limits<size_type>::max(), and reflects the theoretical limit on the size of the container. At runtime, the size of the container may be limited to a value smaller than max_size() by the amount of RAM available.
[edit] Example
Run this code
#include <iostream> #include <map> int main() { std::multimap<char,char> s; std::cout << "Maximum size of a 'multimap' is " << s.max_size() << "\n"; }
Possible output:
Maximum size of a 'multimap' is 18446744073709551615
See also
| returns the number of elements (public member function) |