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C++ Deque Library - get_allocator() Function
Description
The C++ function std::deque::get_allocator() returns an allocator associated with deque.
Declaration
Following is the declaration for std::deque::get_allocator() function form std::deque header.
C++98
allocator_type get_allocator() const;
C++11
allocator_type get_allocator() const noexcept
Parameters
None
Return value
Returns an allocator associated with deque.
Exceptions
This member function never throws exception.
Time complexity
Constant i.e O(1)
Example
The following example shows the usage of std::deque::get_allocator() function.
#include <iostream> #include <deque> using namespace std; int main(void) { deque<int> d = {1, 2, 3, 4, 5}; int *p = NULL; p = d.get_allocator().allocate(5); for (int i = 0; i < 5; ++i) p[i] = i + 1; cout << "Contents of deque are" << endl; for (int i = 0; i < 5; ++i) cout << p[i] << endl; return 0; }
Let us compile and run the above program, this will produce the following result −
Contents of deque are 1 2 3 4 5
deque.htm
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