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long long - long - int - short - char ¼øÀ¸·Î º¹»çÇÕ´Ï´Ù. #include <stdio.h>
#include <string.h>
#include <stdlib.h>
struct Char
{
typedef char type, *ptr;
typedef Char next;
};
struct Short
{
typedef short type, *ptr;
typedef Char next;
};
struct Int
{
typedef int type, *ptr;
typedef Short next;
};
struct Long
{
typedef long type, *ptr;
typedef Int next;
};
struct LongLong
{
typedef long long type, *ptr;
typedef Long next;
};
template<class T>
void
typeCpy(void* dst, void* src, size_t size)
{
div_t v = div(size, sizeof(typename T::type));
for (int i = 0; i < v.quot; i++)
{
*((typename T::ptr) dst) = *((typename T::ptr) src);
dst = (typename T::ptr) dst + 1;
src = (typename T::ptr) src + 1;
}
if (v.rem > 0)
{
typeCpy<typename T::next>(dst, src, v.rem);
}
}
void*
memCpy(void* dst, void* src, size_t size)
{
typeCpy<LongLong>(dst, src, size);
return dst;
}
int main()
{
char a[32], b[32];
strcpy(a, "0123456701234567");
char* dst = (char*) memCpy(b, a, strlen(a) + 1);
printf("%x: %s\n", dst, b);
return 0;
}
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