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.

NAME fputs - 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 eventn", minutes_to_event); ...

APPLICATION USAGE The puts() function appends a <newline> while fputs() does not.

RATIONALE None.

FUTURE DIRECTIONS None.

SEE ALSO fopen(), 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)