将内存复制到标准::复制

我正在尝试将所有CopyMemory函数转换为std：：copy函数。

它适用于copymemory和memcpy，但不适用于std：：copy。谁能告诉我我做错了什么或如何解决它？

template<typename T>
void S(unsigned char* &Destination, const T &Source)
{
//CopyMemory(Destination, &Source, sizeof(T));
std::copy(&Source, &Source + sizeof(T), Destination);      //Fails..
Destination += sizeof(T);
}
template<typename T>
void D(T* &Destination, unsigned char* Source, size_t Size)
{
//CopyMemory(Destination, Source, Size);
std::copy(Source, Source + Size, Destination);
Source += sizeof(T);
}
template<typename T>
void D(T &Destination, unsigned char* Source, size_t Size)
{
//CopyMemory(&Destination, Source, Size);
std::copy(Source, Source + Size, &Destination);
Source += sizeof(T);
}

我还认为我可以执行以下操作将迭代器转换为指针：

std::string Foo = "fdsgsdgs";
std::string::iterator it = Foo.begin();
unsigned char* pt = &(*it);

那么我将如何将指针转换为迭代器？ ：S

我用来测试 memcpy/copymem vs std：：copy 的代码如下(如果它有效，它打印 7 个......如果它不起作用，则打印随机数)：

#include <windows.h>
#include <iostream>
#include <vector>
#include <typeinfo>
using namespace std;
typedef struct
{
int SX, SY;
uint32_t Stride;
unsigned long ID;
int TriangleCount;
} Model;
template<typename T>
void S(unsigned char* &Destination, const T &Source)
{
CopyMemory(Destination, &Source, sizeof(T));
Destination += sizeof(T);
}
template<typename T>
void S(unsigned char* &Destination, const std::vector<T> &VectorContainer)
{
size_t Size = VectorContainer.size();
for (size_t I = 0; I < Size; ++I)
S(Destination, VectorContainer[I]);
}
void S(unsigned char* &Destination, const Model &M)
{
S(Destination, M.SX);
S(Destination, M.SY);
S(Destination, M.Stride);
S(Destination, M.ID);
S(Destination, M.TriangleCount);
}
template<typename T>
void D(T* &Destination, unsigned char* Source, size_t Size)
{
CopyMemory(Destination, Source, Size);
Source += sizeof(T);
}
template<typename T>
void D(T &Destination, unsigned char* Source, size_t Size)
{
CopyMemory(&Destination, Source, Size);
Source += sizeof(T);
}
template<typename T>
void D(std::vector<T> &Destination, unsigned char* Source, size_t Size)
{
Destination.resize(Size);
for(size_t I = 0; I < Size; ++I)
{
D(Destination[I], Source, sizeof(T));
Source += sizeof(T);
}
}
void D(Model* &Destination, unsigned char* Source)
{
D(Destination->SX, Source, sizeof(Destination->SX));
D(Destination->SY, Source, sizeof(Destination->SY));
D(Destination->Stride, Source, sizeof(Destination->Stride));
D(Destination->ID, Source, sizeof(Destination->ID));
D(Destination->TriangleCount, Source, sizeof(Destination->TriangleCount));
}
long double* LD = new long double[25000];
std::vector<Model> ListOfModels, ListOfData;
void ExecuteCommands()
{
switch(static_cast<int>(LD[1]))
{
case 1:
{
LD[2] = 2;
unsigned char* Data = reinterpret_cast<unsigned char*>(&LD[3]);
Model M; M.SX = 1; M.SY = 3; M.Stride = 24; M.ID = 7; M.TriangleCount = 9;
Model K; K.SX = 3; K.SY = 21; K.Stride = 34; K.ID = 9; K.TriangleCount = 28;
ListOfModels.push_back(M);
ListOfModels.push_back(K);
S(Data, ListOfModels);
}
break;
}
}
void* GetData()
{
unsigned char* Data = reinterpret_cast<unsigned char*>(&LD[3]);
D(ListOfData, Data, LD[2]);
cout<<ListOfData[0].ID;        //Should print 7 if it works.
return &ListOfData[0];
}

int main()
{
LD[1] = 1;
ExecuteCommands();
GetData();
}