1 #include<stdio.h>
2 #include<stdlib.h>
3
4 void* memncpy(void* dest, const void* src, int count){
5 int i=0;
6 //void *init_dest = dest;
7 char* dest1 = (char*)dest;
8 const char* src1 = (char*)src;
9 for(;i<count;i++){
10 *dest1=*src1;
11 dest1++;
12 src1++;
13 }
14 return dest;
15 }
16 int main(void){
17 int num=3;
18 char str1[8] ="abcdefg";
19 char* str2 = (char*)malloc(8);
20 //str1= "abcdefg"; // error: incompatible types when assigning to type ‘char[8]’ from type ‘char *
21 str2= "hijklmn";
22 printf("1str1：%s \n",str1);
23 memncpy(str1,str2,num);
24 printf("2str1: %s \n",str1);
25 return 0;
26 }
