hdf_sort_obj man page on DragonFly
[printable version]
hdf_sort_obj(3) util/neo_hdf.h hdf_sort_obj(3)
NAME
hdf_sort_obj - sort the children of an HDF node
SYNOPSIS
#include <util/neo_hdf.h>
hdf_sort_obj()
ARGUMENTS
h - HDF node
compareFunc - function which returns 1,0,-1 depending on some
criteria. The arguments to this sort function
are pointers to pointers to HDF elements. For
example:
int sortByName(const void *a, const void *b) {
HDF **ha = (HDF **)a;
HDF **hb = (HDF **)b;
*
return strcasecmp(hdf_obj_name(*ha), hdf_obj_name(*hb));
}
*
DESCRIPTION
hdf_sort_obj will sort the children of an HDF node, based on the given
comparison function. This function works by creating an array of the
pointers for each child object of h, using qsort to sort that array,
and then re-ordering the linked list of children to the new order. The
qsort compare function uses a pointer to the value in the array, which
in our case is a pointer to an HDF struct, so your comparison function
should work on HDF ** pointers.
RETURN VALUE
None (h children will be sorted)
SEE ALSO
hdf_set_symlink(3), hdf_get_valuef(3), compareFunc)(3),
hdf_dump_str(3), hdf_get_int_value(3), hdf_read_string_ignore(3),
hdf_copy(3), hdf_get_node(3), hdf_set_value(3), hdf_obj_child(3),
hdf_read_string(3), hdf_set_buf(3), hdf_register_fileload(3),
hdf_get_obj(3), hdf_get_attr(3), hdf_obj_top(3), hdf_dump_format(3),
hdf_destroy(3), hdf_init(3), hdf_obj_value(3), hdf_write_string(3),
hdf_set_valuevf(3), hdf_sort_obj(3), hdf_write_file_atomic(3),
hdf_obj_attr(3), hdf_set_valuef(3), hdf_get_copy(3), hdf_write_file(3),
hdf_get_valuevf(3), hdf_set_int_value(3), hdf_dump(3),
hdf_get_value(3), hdf_set_copy(3), hdf_obj_next(3), hdf_search_path(3),
hdf_obj_name(3), hdf_set_attr(3), hdf_get_child(3), hdf_remove_tree
ClearSilver 12 July 2007 hdf_sort_obj(3)
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