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PUTS(3P)                   POSIX Programmer's Manual                  PUTS(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
       puts - put a string on standard output
SYNOPSIS
       #include <stdio.h>
       int puts(const char *s);

DESCRIPTION
       The puts() function shall write the string pointed to by s, followed by
       a <newline>, to the standard output stream stdout. 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 puts() and the next successful com-
       pletion of a call to fflush() or fclose() on the same stream or a  call
       to exit() or abort().
RETURN VALUE
       Upon  successful completion, puts() shall return a non-negative number.
       Otherwise, it shall return EOF, shall set an error  indicator  for  the
       stream,  and errno shall be set 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
       puts().  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 ");
              puts(asctime(localtime(&now)));
              printf("There are %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 ALSO
       fopen(),   fputs(),   putc(),   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                             PUTS(3P)