C/Memory/Memory Copy

Copy bytes to buffer from buffer: how to use memcpy

<source lang="cpp">

1. include <stdio.h>
2. include <string.h>

int main () {

 char str1[]="This is a line.";
 char str2[40];
 char str3[40];
 memcpy (str2, str1, strlen(str1) + 1);
 memcpy (str3, "copy successful", 16);
 printf ("str1= %s\n str2= %s\n str3= %s\n", str1, str2, str3);
 return 0;

}

      </source>

Memory copy

<source lang="cpp">

1. include <stdio.h>
2. include <string.h>
3. define SIZE 80

int main(void) {

 char buf1[SIZE], buf2[SIZE];
 strcpy(buf1, "Hiiiiiiiiiiiiiiiiiiii...");
 memcpy(buf2, buf1, SIZE);
 printf(buf2);
 return 0;

}

      </source>