wcscat() function in C++

The wcscat() function is specified in header file cwchar.h and this function is use to append a copy of wide string to the end of another string. 

Syntax:

wchar_t* wcscat( wchar_t* dest, const wchar_t* src );

Parameters: This function takes two parameters:

• dest: specifies the pointer to the destination array.
• src: specifies the string to be added to the destination.

Return: This function returns the new appended string.

Below program illustrate the above function:- 

Example:-

cpp

// C++ program to demonstrate
// example of wcscat() function.

#include <bits/stdc++.h>
using namespace std;

int main()
{

    // maximum length of the destination string
    wchar_t dest[30];

    // maximum length of the source string
    wchar_t src[30];

    // initialize the destination string
    wcscpy(dest, L"Geekforgeeks ");

    // initialize the source string
    wcscpy(src, L"is the best");


    wcscat(dest, src);
    wprintf(L"%ls\n", dest);
    return 0;
}

Output:

Geekforgeeks is the best

Time Complexity: O(n)
Space Complexity: O(n)