《stl源码剖析》空间配置器代码编译不过
《stl源码剖析》 p46
#include "stdafx.h"
#include <new>
#include <cstddef>
#include <cstdlib>
#include <climits>
#include <vector>
#include <iostream>
using namespace std;
namespace JJ
{
template<class T>
inline T* _allocate(ptrdiff_t size, T*)
{
T* tmp = (T*)(::operator new((size_t)(size * sizeof(T))));
if (tmp == 0)
{
std::cout<<"out of memorry"<<std::endl;
exit(1);
}
return tmp;
}
template<class T>
inline void _deallocate(T* buffer)
{
::operator delete(buffer);
}
template<class T1, class T2>
inline void _construct(T1* p, const T2& value)
{
new(p) T1(value);
}
template<class T>
inline void _destroy(T* ptr)
{
ptr->~_T();
}
template <class T>
class allocator
{
public:
typedef T value_type;
typedef T* pointer;
typedef const T* const_pointer;
typedef T& reference;
typedef const T& const_reference;
typedef size_t size_type;
typedef ptrdiff_t difference_type;
template <class U>
struct rebind
{
typedef allocator<U> other;
};
pointer allocate(size_type n, const void* hint = 0)
{
return _allocate((difference_type)n, (pointer)0);
}
void deallocate(pointer p, size_type n)
{
_deallocate(p);
}
void construct(pointer p, const T& value)
{
_construct(p, value);
}
void destroy(pointer p)
{
_destroy(p);
}
pointer address(reference x)
{
return (pointer)&x;
}
const_pointer const_address(const_reference x)
{
return (const_pointer)&x;
}
size_type max_size() const
{
return size_type(UINT_MAX / sizeof(T));
}
};
}
void main()
{
int ia[5] = {0, 1, 2, 3, 4};
unsigned int i;
std::vector<int, JJ::allocator<int> > iv(ia, ia + 5);
for (i = 0; i < iv.size(); i++)
{
std::cout<<iv[i]<<" ";
std::cout<<std::endl;
}
}
[解决办法]
Stl源码剖析上的代码需要在SGI上编译，话说SGI是什么。。。
你看一下vector的源码，应该是这个配置器的函数名字无法匹配
