我可以在cplusplus的/usr/include/c++/4.7/ext/bitmap_allocator.h中使用bitmap_allocator吗？

Question

I'm a newbie on cplusplus, and thanks for answering my questions.

I'm now trying to find some memory pool allocators other than std::allocator, and I've found that there're some allocators in ../version/ext/ folder. (I'm in Linux and I don't know about windows. And I'm using gnu compiler g++-4.7)

I quite found some explanation on GNU: http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt04ch11.html But if I write __gnu_cxx::bitmap_allocator, there'll still be a comile error.

Answer 1

It's my own fault... %>_<%. A very silly fault = =.

I did not include the file...

for those who want to know how to use this, code provided as following:

#include <iostream>
#include <vector>
#include <ext/bitmap_allocator.h>

int main()
{
    __gnu_cxx::bitmap_allocator<int> bit_alloc;
    std::vector<int, __gnu_cxx::bitmap_allocator<int> > v(bit_alloc);
    for(int i = 0; i < 10; ++i)
        v.push_back(i);
    for(auto i : v)
        std::cout << i << ' ';
    std::cout << std::endl;

    return 0;
}//main