exo1/lib/sort.c

   1 #include "utils.h"
   2 #include "sort.h"
   3
   4 bool ascending(int a, int b) {
   5     return a > b;
   6 }
   7
   8 bool descending(int a, int b) {
   9     return a < b;
  10 }
  11
  12 bool ascending_and_even(int a, int b) {
  13     return (ascending(a, b) && (a % 2 == 0));
  14 }
  15
  16 bool ascending_and_odd(int a, int b) {
  17     return (ascending(a, b) && (a % 2 != 0));
  18 }
  19
  20 static bool sort_first(int* array, unsigned length, criteria_cb criteria) {
  21     bool rt = false;
  22     for (unsigned i = 0; i < length-1; i++) {
  23         if (criteria(array[i], array[i+1])) {
  24             swap_int(&array[i], &array[i+1]);
  25             if (!rt) { rt = true; };
  26         }
  27     }
  28     return rt;
  29 }
  30
  31 /* this function is awaited in the array.c file */
  32 void sort_bubble_array(int* array, unsigned length, criteria_cb criteria) {
  33     bool rt;
  34     do {
  35         rt = sort_first(array, length, criteria);
  36    } while (rt);
  37 }