ardupilot/libraries/AP_Common/sorting.h

45 lines
1.5 KiB
C

/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
in-place insertion sort for small arrays of data. This is O(n) if
already sorted and O(n^2) for worst case (elements are reversed)
sort order is smallest first
*/
void insertion_sort_uint16(uint16_t *data, uint16_t n);
/*
remove duplicates from a sorted uint16_t array, returning the new
count
*/
uint16_t remove_duplicates_uint16(uint16_t *data, uint16_t n);
/*
bisection search on a sorted uint16_t array to find an element
return true if found
*/
bool bisect_search_uint16(const uint16_t *data, uint16_t n, uint16_t value);
/*
remove elements in a 2nd sorted array from a sorted uint16_t array
return the number of remaining elements
*/
uint16_t remove_list_uint16(uint16_t *data, uint16_t n, const uint16_t *rem, uint16_t n2);
/*
return number of common elements between two sorted uint16_t lists
*/
uint16_t common_list_uint16(uint16_t *data, uint16_t n, const uint16_t *rem, uint16_t n2);