The Open Group Base Specifications Issue 8
IEEE Std 1003.1-2024
Copyright © 2001-2024 The IEEE and The Open Group

NAME

fputws — put a wide-character string on a stream

SYNOPSIS

#include <stdio.h>
#include <wchar.h>

int fputws(const wchar_t *restrict
ws, FILE *restrict stream);

DESCRIPTION

[CX] [Option Start] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2024 defers to the ISO C standard. [Option End]

The fputws() function shall write a character string corresponding to the (null-terminated) wide-character string pointed to by ws to the stream pointed to by stream. No character corresponding to the terminating null wide-character code shall be written.

[CX] [Option Start] The last data modification and last file status change timestamps of the file shall be marked for update between the successful execution of fputws() and the next successful completion of a call to fflush() or fclose() on the same stream or a call to exit() or abort(). [Option End]

RETURN VALUE

Upon successful completion, fputws() shall return a non-negative number. Otherwise, it shall return -1, set an error indicator for the stream, [CX] [Option Start]  and set errno to indicate the error. [Option End]

ERRORS

Refer to fputwc .


The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

The fputws() function does not append a <newline>.

This volume of POSIX.1-2024 requires that successful completion simply return a non-negative integer. There are at least three known different implementation conventions for this requirement:

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

2.5 Standard I/O Streams , fopen

XBD <stdio.h> , <wchar.h>

CHANGE HISTORY

First released in Issue 4. Derived from the MSE working draft.

Issue 5

The Optional Header (OH) marking is removed from <stdio.h>.

Issue 6

Extensions beyond the ISO C standard are marked.

The fputws() prototype is updated for alignment with the ISO/IEC 9899:1999 standard.

Issue 7

Changes are made related to support for finegrained timestamps.

POSIX.1-2008, Technical Corrigendum 1, XSH/TC1-2008/0176 [412] and XSH/TC1-2008/0177 [14] are applied.

End of informative text.

 

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