Проект OpenNet: MAN fgetws (3) Библиотечные вызовы (FreeBSD и Linux)

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fgetws (3)

fgetws (3) ( FreeBSD man: Библиотечные вызовы )

fgetws (3) ( Русские man: Библиотечные вызовы )

fgetws (3) ( Linux man: Библиотечные вызовы )

>> fgetws (3) ( POSIX man: Библиотечные вызовы )

NAME

fgetws - get a wide-character string from a stream

SYNOPSIS

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

wchar_t *fgetws(wchar_t *restrict ws, int n,
FILE *restrict stream);

DESCRIPTION

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 IEEE Std 1003.1-2001 defers to the ISO C standard.

The fgetws() function shall read characters from the stream, convert these to the corresponding wide-character codes, place them in the wchar_t array pointed to by ws, until n-1 characters are read, or a <newline> is read, converted, and transferred to ws, or an end-of-file condition is encountered. The wide-character string, ws, shall then be terminated with a null wide-character code.

If an error occurs, the resulting value of the file position indicator for the stream is unspecified.

The fgetws() function may mark the st_atime field of the file associated with stream for update. The st_atime field shall be marked for update by the first successful execution of fgetc(), fgets(), fgetwc(), fgetws(), fread(), fscanf(), getc(), getchar(), gets(), or scanf() using stream that returns data not supplied by a prior call to ungetc() or ungetwc().

RETURN VALUE

Upon successful completion, fgetws() shall return ws. If the stream is at end-of-file, the end-of-file indicator for the stream shall be set and fgetws() shall return a null pointer. If a read error occurs, the error indicator for the stream shall be set, fgetws() shall return a null pointer, <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> and shall set errno to indicate the error.

ERRORS

Refer to fgetwc() .

The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

COPYRIGHT

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .