wmemmove() in CPP

Program Implementation

Let us see the implementation of the method in code to get the better understanding of the subject:

#include <cwchar>
#include <clocale>
#include <iostream>

using namespace std;

int main()
{
   // setting the format to US ENG to utf8 file format
   setlocale(LC_ALL, "en_US.utf8");

   wchar_t src[] = L"\u03b1\u03b2\u03b3\u03b8\u03bb\u03c9\u03c0";
   wchar_t *dest = &src[2]; // dest and src overlaps
   int count = 5;

   wmemmove(dest, src, count);
   wcout << L"After Processing by wmemmove() method: " << endl;

   for (int i = 0; i < count; i++)
       putwchar(dest[i]);

   return 0;
}

You can also try this code with Online C++ Compiler

Run Code

After compiling and running the article in the terminal:

Try this code on online C++ compiler.

Frequently Asked Questions

Which is faster memcpy or Memmove?

"Memcpy is more efficient than memmove," says the author. You're probably not performing the same thing when running the two functions in your situation. In general, only use memmove when absolutely necessary. When there's a good likelihood that the source and destination zones will overlap, use it.

What is the use of Memmove?

The method memmove() copies count bytes from source to dest. As if src were first put into a temporary array, this method permits copying across objects that may overlap.

What is the difference between memcpy and Memmove?

The memcpy() method copies a certain number of bytes from one memory to another. The memmove() method copies a given number of bytes from one memory to another or overlaps two memories.

Conclusion

The article extensively covers the implementation of wmemmove() method in c++, we see the working of code. You might be interested in article such as Inroduction to c++.

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