deque_alloc_test.cc

#include <cstdio>
#include <cstdlib>
#include <queue>

void* operator new(std::size_t sz) {
    std::printf("global op new called, size = %zu\n",sz);
    return std::malloc(sz);
}
void operator delete(void* ptr) noexcept
{
    std::puts("global op delete called");
    std::free(ptr);
}

int main() {
    std::puts("Alloc std::queue<int>");
    std::queue<int> q;
}

// EOF

$ g++ --version
g++ (Ubuntu 5.4.0-6ubuntu1~16.04.2) 5.4.0 20160609

$ g++ -g -O3 -std=c++11 deque_mem_test.cc && ./a.out
Alloc std::queue<int>
global op new called, size = 64
global op new called, size = 512
global op new called, size = 64
global op new called, size = 512
global op delete called
global op delete called
global op delete called
global op delete called

// ?? Why you allocate memory??