memcpy()函数的实现

#include<stdio.h>
#include<stdlib.h>
void Memcopy(void* b, void* a, int bitlen)
{
char* aa = (char*)a;
char* bb = (char*)b;
for (int i = 0;i < bitlen;i++)
{
*bb = *aa;
bb++;
aa++;
}
}
int main()
{
int a[] = { 1,2,3,4 };
int b[4] = { 0 };
Memcopy(b, a, sizeof(a));
for (int i = 0;i < 4;i++)
{
printf("%d “, b[i]);
}
printf(”\n");
system(“pause”);
return 0;
}