NAME
feature_present —
query presence of a kernel
feature
LIBRARY
library “libc”
SYNOPSIS
#include
<unistd.h>
int
feature_present(const
char *feature);
DESCRIPTION
Thefeature_present()
function provides a method for an application to determine if a specific
kernel feature is present in the currently running 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 internal error it will
return 0.
RETURN VALUES
If feature is present then 1 is returned; otherwise 0 is returned.
SEE ALSO
HISTORY
The feature_present() function first
appeared in FreeBSD 8.0.