Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help 
FEATURE_PRESENT(3)     FreeBSD Library Functions Manual	    FEATURE_PRESENT(3)

NAME
     feature_present --	query presence of a kernel feature

LIBRARY
     Standard C	Library	(libc, -lc)

SYNOPSIS
     #include <unistd.h>

     int
     feature_present(const char	*feature);

DESCRIPTION
     The feature_present() function provides a method for an application to
     determine if a specific kernel feature is present in the currently	run-
     ning kernel.  The feature argument	specifies the name of the feature to
     check.  The feature_present() function will return	1 if the specified
     feature is	present, otherwise it will return 0.  If the feature_present()
     function is not able to determine the presence of feature due to an in-
     ternal error it will return 0.

RETURN VALUES
     If	feature	is present then	1 is returned; otherwise 0 is returned.

SEE ALSO
     sysconf(3), sysctl(3)

HISTORY
     The feature_present() function first appeared in FreeBSD 8.0.

FreeBSD	13.0			January	8, 2008			  FreeBSD 13.0
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | HISTORY

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=feature_present&sektion=3&manpath=FreeBSD+13.1-RELEASE+and+Ports>

home | help