C language itself implement memory copy function Memmov ()

Tag: c; memory copy function

/************************************************************************************1. Simulation implements the implementation of the Memmove function. (consider memory overlap) ************************************************************************************/#include < stdio.h> #include <string.h> #include <assert.h>void * my_memmove (void *aim,const  void *source,int length) {Int i = 0;void *p = aim;assert (aim& &source);if  (((char*) aim -  (char*) source)//memory overlap from back to forward copy  >= 0 ({for   length-1; i >=0; i--) {* ((char *) aim + i*sizeof (char))  = * (( char *) source + i*sizeof (char));} return  (P);} else     //non-overlapping   normal copy {for  (i = 0; i <length; i++) {* ((char *) aim + i*sizeof (char))  = * ((char *) source + i*sizeof (char));} return  (P);}}  //  1 2 3 4 5&nbSp;6 7 8 9 0 0 // *0*1*2*3*4*5*6*7*8*9*10 //1 2 3 4  5 6 7 8 9 0 0int main () {int arr[11] = { 1, 2 ,  3, 4, 5, 6, 7, 8, 9, 0 };int i = 0;my_memmove ( arr, arr , 36);for  (i; i < 11; i++) printf ("%d\n", Arr[i]);/*for   (i = 0; i < 10;i++)     printf ("%d\n", * (  (int * ) My_memmove (arr,  arr+1,  36) +1); */return 0;}

C language itself implement memory copy function Memmov ()