C++ How to Program, 10/e

... << s1 << '\"' << endl;
17  }

After s2 is copied into s1 with memcpy,
s1 contains "Copy this string"

Function memmove, like memcpy, copies a specified number of bytes from the object pointed to by its second argument into the object pointed to by its first argument. Copying is performed as if the bytes were copied from the second argument to a temporary array of characters, then copied from the temporary array to the first argument. This allows characters from one part of a string to be copied into another part of the same string.

Common Programming Error 22.11

String-manipulation functions other than memmove that copy characters have undefined ...