In this guide, you will learn what is strcpy() function is in C++ programming and how to use it with an example.

1. strcpy() Function Overview

The strcpy() function in C++ is used to copy the contents of one string to another. It's a part of the C++ <cstring> header. This function is essential when you need to duplicate or move string data from one memory location to another.

Signature:

char* strcpy(char* destination, const char* source);

Parameters:

- destination: Pointer to the destination array where the content is to be copied.

- source: String to be copied.

2. Source Code Example

#include <iostream> #include <cstring> int main() { char source[] = "C++ Programming"; char destination[50]; // Using strcpy to copy source to destination strcpy(destination, source); std::cout << "Copied string: " << destination; return 0; } 

Output:

Copied string: C++ Programming 

3. Explanation

In the provided source code:

1. We include the necessary header files: <iostream> for input/output operations and <cstring> for strcpy().

2. Two character arrays, source and destination, are defined. The source array is initialized with a string.

3. The strcpy() function is used to copy the contents of source to destination.

4. The copied string in destination is then printed to the screen.