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 .