trusty (3) puts.3posix.gz

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 completion 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 .