---
name: "wcpcpy"
section: "3"
platform: "linux"
package: "man-pages"
version: "6.19-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux", "freebsd"]
url: "https://new.carta.tech/wcpcpy"
---

# wcpcpy(3)

copy a wide-character string, returning a pointer to its end

## NAME

wcpcpy - copy a wide-character string, returning a pointer to its end

## LIBRARY

Standard C library (*libc*, *-lc*)

## SYNOPSIS

```
#include <wchar.h>
```

**wchar\_t \*wcpcpy(wchar\_t \*restrict** *dest***, const wchar\_t \*restrict** *src***);**

Feature Test Macro Requirements for glibc (see [**feature\_test\_macros**(7)](/feature_test_macros/7.md)):

**wcpcpy**():

```
    Since glibc 2.10:
        _POSIX_C_SOURCE >= 200809L
    Before glibc 2.10:
        _GNU_SOURCE
```

## DESCRIPTION

The **wcpcpy**() function is the wide-character equivalent of the [**stpcpy**(3)](/stpcpy/3.md) function. It copies the wide-character string pointed to by *src*, including the terminating null wide character (L'\\0'), to the array pointed to by *dest*.

The strings may not overlap.

The programmer must ensure that there is room for at least *wcslen(src)+1* wide characters at *dest*.

## RETURN VALUE

**wcpcpy**() returns a pointer to the end of the wide-character string *dest*, that is, a pointer to the terminating null wide character.

## ATTRIBUTES

For an explanation of the terms used in this section, see [**attributes**(7)](/attributes/7.md).

| | | |
| --- | --- | --- |
| **Interface** | **Attribute** | **Value** |
| **wcpcpy**() | Thread safety | MT-Safe |

## STANDARDS

POSIX.1-2008.

## SEE ALSO

[**strcpy**(3)](/strcpy/3.md), [**wcscpy**(3)](/wcscpy/3.md)