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=======================
Miscellaneous functions
=======================
.. code-block:: c
#include <libHX/misc.h>
int HX_ffs(unsigned long z);
int HX_fls(unsigned long z);
void HX_zvecfree(char **);
unsigned int HX_zveclen(const char *const *);
``HX_ffs``
Finds the first (lowest-significant) bit in a value and returns its
position, or ``-1`` to indicate failure.
``HX_fls``
Finds the last (most-significant) bit in a value and returns its
position, or ``-1`` to indicate failure.
``HX_zvecfree``
Frees the supplied Z-vector array. (Frees all array elements from the
first element to (excluding) the first ``NULL`` element.)
``HX_zveclen``
Counts the number of array elements until the first ``NULL`` array
element is seen, and returns this number.
.. code-block:: c
#include <libHX/io.h>
void HX_hexdump(FILE *fp, const void *ptr, unsigned int len);
``HX_hexdump``
Outputs a nice pretty-printed hex and ASCII dump to the filedescriptor
``fp``. ``ptr`` is the memory area, of which ``len`` bytes will be
dumped.
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