FEATURE_PRESENT(3) 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 de- termine 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 sysconf(3), sysctl(3) HISTORY The feature_present() function first appeared in FreeBSD 8.0. FreeBSD 15.1 January 8, 2008 FEATURE_PRESENT(3)
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | HISTORY
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