putwchar(3) — Linux manual page

putwchar(3)              Library Functions Manual             putwchar(3)

NAME         top

       putwchar - write a wide character to standard output

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #include <wchar.h>

       wint_t putwchar(wchar_t wc);

DESCRIPTION         top

       The putwchar() function is the wide-character equivalent of the
       putchar(3) function.  It writes the wide character wc to stdout.
       If ferror(stdout) becomes true, it returns WEOF.  If a wide
       character conversion error occurs, it sets errno to EILSEQ and
       returns WEOF.  Otherwise, it returns wc.

       For a nonlocking counterpart, see unlocked_stdio(3).

RETURN VALUE         top

       The putwchar() function returns wc if no error occurred, or WEOF
       to indicate an error.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                            │ Attribute     │ Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │ putwchar()                           │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

STANDARDS         top

       C11, POSIX.1-2008.

HISTORY         top

       POSIX.1-2001, C99.

NOTES         top

       The behavior of putwchar() depends on the LC_CTYPE category of the
       current locale.

       It is reasonable to expect that putwchar() will actually write the
       multibyte sequence corresponding to the wide character wc.

SEE ALSO         top

       fputwc(3), unlocked_stdio(3)

COLOPHON         top

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Linux man-pages 6.15            2025-05-17                    putwchar(3)

Pages that refer to this page: puts(3)

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