allocator.h

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// -*- C++ -*-
#ifndef __cxz_allocator__
#define __cxz_allocator__
 
#include <cstdlib>
#include <new>
#include <vector>
#include <cstdint>
#include <cassert>
#include <iostream>
#include "base/types.h"
#include "base/intrin.h"
 
#define MIB_SIZE 1024*1024 // 1MiB
#define WARN_SIZE MIB_SIZE*100 // 100 MiB
 
namespace CNORXZ
{
    template <typename T>
    class Allocator
    {
    public:
 
    typedef T value_type;
    
    static constexpr SizeT type_size = sizeof(T); 
    static constexpr SizeT N = MAX_VSIZE; 
        struct VX
        {
            alignas(N) char x[N];
        };
 
    Allocator() = default;
 
    template <typename U>
    Allocator(const Allocator<U>& x) {}
 
    T* allocate(SizeT n);
 
    void deallocate(T* p, SizeT n);
    };
 
    template <class T, class U>
    bool operator==(const Allocator<T>& a, const Allocator<U>& b);
 
    template <class T, class U>
    bool operator!=(const Allocator<T>& a, const Allocator<U>& b);
 
    
} // namespace CNORXZ
 
#endif