String | Memory Copy

Based on experience, I'm used to making programs using only integers in inputting choices or just doing plain mathematics but I thought that making programs doesn't just revolve around numbers it also has characters such as letters and symbols. That's when I encountered string and array.

String is used when you have to input a lot of characters or simply a phrase or sentence. On the other hand, array is used as a large storage of your inputs either characters or numbers. In this program, we are going to copy a value from one memory to another using string, array and the memcpy command. In this example, string1 will copy the value of string2. The string value would be, "This is a string.". Check out the codes below.

   1:  #include<iostream>

   2:  #include<conio.h>

   3:  #include<cstring>

   4:   

   5:  using namespace std;

   6:   

   7:  main()

   8:  {

   9:        char str1[20];

  10:        char str2[]="This is a string.";

  11:     

  12:        cout<<"Before memcpy()\n\nstr1 contains: "<<str1<<endl<<"str2 contains: "<<str2<             <endl<<endl;

  13:        memcpy(str1,str2,17);