FPUTS(3P) POSIX Programmer's Manual FPUTS(3P)PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the corresponding
Linux manual page for details of Linux behavior), or the interface may
not be implemented on Linux.
NAMEfputs - put a string on a stream
SYNOPSIS
#include <stdio.h>
int fputs(const char *restrict s, FILE *restrict stream);
DESCRIPTION
The fputs() function shall write the null-terminated string pointed to
by s to the stream pointed to by stream. The terminating null byte
shall not be written.
The st_ctime and st_mtime fields of the file shall be marked for update
between the successful execution of fputs() and the next successful
completion of a call to fflush() or fclose() on the same stream or a
call to exit() or abort().
RETURN VALUE
Upon successful completion, fputs() shall return a non-negative number.
Otherwise, it shall return EOF, set an error indicator for the stream,
and set errno to indicate the error.
ERRORS
Refer to fputc().
The following sections are informative.
EXAMPLES
Printing to Standard Output
The following example gets the current time, converts it to a string
using localtime() and asctime(), and prints it to standard output using
fputs(). It then prints the number of minutes to an event for which it
is waiting.
#include <time.h>
#include <stdio.h>
...
time_t now;
int minutes_to_event;
...
time(&now);
printf("The time is ");
fputs(asctime(localtime(&now)), stdout);
printf("There are still %d minutes to the event.\n",
minutes_to_event);
...
APPLICATION USAGE
The puts() function appends a <newline> while fputs() does not.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSOfopen(), putc(), puts(), 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 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 .
IEEE/The Open Group 2003 FPUTS(3P)
