---
name: "fputws"
section: "3"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["linux", "freebsd", "macos"]
url: "https://new.carta.tech/fputws"
---

# fputws(3)

output a line of wide characters to a stream

## NAME

**fputws** – output a line of wide characters to a stream

## LIBRARY

Standard C Library (libc, -lc)

## SYNOPSIS

**#include \<stdio.h\>**

**#include \<wchar.h\>**

*int*\

**fputws**(*const wchar\_t \* restrict ws*, *FILE \* restrict fp*);

## DESCRIPTION

The **fputws**() function writes the wide character string pointed to by *ws* to the stream pointed to by *fp*.

## RETURN VALUES

The **fputws**() function returns 0 on success and -1 on error.

## ERRORS

The **fputws**() function will fail if:

- \[EBADF\]

  The *fp* argument supplied is not a writable stream.

The **fputws**() function may also fail and set *errno* for any of the errors specified for the routine [write(2)](/write/2.md).

## SEE ALSO

[ferror(3)](/ferror/3.md), [fputs(3)](/fputs/3.md), [putwc(3)](/putwc/3.md), [stdio(3)](/stdio/3.md)

## STANDARDS

The **fputws**() function conforms to IEEE Std 1003.1-2001 (“POSIX.1”).