fgetws(3p) [centos man page]

FGETWS(3P)						     POSIX Programmer's Manual							FGETWS(3P)

PROLOG

       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

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 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,  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.

SEE ALSO

       fopen(), fread(), the Base Definitions volume of IEEE Std 1003.1-2001, <stdio.h>, <wchar.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- 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 .

IEEE
/The Open Group						       2003								FGETWS(3P)

FGETS(3P)						     POSIX Programmer's Manual							 FGETS(3P)

PROLOG

       This  manual page is part of the POSIX Programmer's Manual.  The Linux implementation of this interface may differ (consult the correspond-
       ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.

NAME

       fgets - get a string from a stream

SYNOPSIS

       #include <stdio.h>

       char *fgets(char *restrict s, int n, FILE *restrict stream);

DESCRIPTION

       The fgets() function shall read bytes from stream into the array pointed to by s, until n-1 bytes are read, or  a  <newline>  is  read  and
       transferred to s, or an end-of-file condition is encountered. The string is then terminated with a null byte.

       The  fgets()  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, fgets() shall return s. If the stream is at end-of-file, the end-of-file indicator for the stream shall be set
       and fgets() shall return a null pointer.  If a read error occurs, the error indicator for the stream shall be set, fgets() shall  return  a
       null pointer,  and shall set errno to indicate the error.

ERRORS

       Refer to fgetc().

       The following sections are informative.

EXAMPLES

   Reading Input
       The following example uses fgets() to read each line of input.  {LINE_MAX}, which defines the maximum size of the input line, is defined in
       the <limits.h> header.

	      #include <stdio.h>
	      ...
	      char line[LINE_MAX];
	      ...
	      while (fgets(line, LINE_MAX, fp) != NULL) {
	      ...
	      }
	      ...

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       fopen(), fread(), gets(), the Base Definitions volume of IEEE Std 1003.1-2001, <stdio.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
       ogy -- 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 .

IEEE
/The Open Group						       2003								 FGETS(3P)