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### 6.10 `wcscpy`—copy a wide-character string

Synopsis

    #include <wchar.h>
    wchar_t *wcscpy(wchar_t *__restrict s1,
        const wchar_t *__restrict s2);

Description
The `wcscpy` function copies the wide-character string pointed to by s2 (including the terminating null wide-character code) into the array pointed to by s1. If copying takes place between objects that overlap, the behaviour is undefined.

Returns
The `wcscpy` function returns s1; no return value is reserved to indicate an error.

Portability
`wcscpy` is ISO/IEC 9899/AMD1:1995 (ISO C).

No supporting OS subroutines are required.