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wcscat() function in C++

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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:- 


// 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;


Geekforgeeks is the best

Time Complexity: O(n)

Space Complexity: O(n)

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Last Updated : 20 Feb, 2023
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