119 lines
2.2 KiB
C
119 lines
2.2 KiB
C
/**
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* set_ops.c
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*
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* Creation Date: 03/04/2019
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*
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* Authors:
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* Leonardo Vencovsky (https://github.com/LeoVen)
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*
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*/
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// Demonstration of set operations like:
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// - Union
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// - Intersection
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// - Difference
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// - Symmetric Difference
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#include "cmc/hashset.h"
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#include <stdio.h>
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#include <stdlib.h>
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CMC_GENERATE_HASHSET(set, set, int)
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typedef struct set set;
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typedef struct set_iter set_iter;
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void print_set(set *s)
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{
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set_iter iter;
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set_iter_init(&iter, s);
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for (set_iter_to_start(&iter); !set_iter_end(&iter); set_iter_next(&iter))
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{
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int result = set_iter_value(&iter);
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size_t index = set_iter_index(&iter);
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if (index == 0)
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printf("[ %2d, ", result);
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else if (index == s->count - 1)
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printf("%2d ]\n", result);
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else
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printf("%2d, ", result);
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}
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}
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int intcmp(int a, int b)
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{
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return a - b;
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}
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size_t inthash(int t)
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{
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size_t a = t;
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a += ~(a << 15);
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a ^= (a >> 10);
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a += (a << 3);
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a ^= (a >> 6);
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a += ~(a << 11);
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a ^= (a >> 16);
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return a;
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}
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int main(int argc, char const *argv[])
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{
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set *set1 = set_new(50, 0.9, intcmp, inthash);
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set *set2 = set_new(50, 0.9, intcmp, inthash);
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for (int i = 1; i <= 20; i++)
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set_insert(set1, i);
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for (int i = 11; i <= 30; i++)
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set_insert(set2, i);
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set *set3 = set_union(set1, set2);
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print_set(set1);
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printf("UNION\n");
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print_set(set2);
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printf("=\n");
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print_set(set3);
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printf("\n\n");
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set *set4 = set_intersection(set1, set2);
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print_set(set1);
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printf("INTERSECTION\n");
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print_set(set2);
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printf("=\n");
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print_set(set4);
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printf("\n\n");
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set *set5 = set_difference(set1, set2);
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print_set(set1);
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printf("DIFFERENCE\n");
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print_set(set2);
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printf("=\n");
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print_set(set5);
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printf("\n\n");
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set *set6 = set_symmetric_difference(set1, set2);
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print_set(set1);
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printf("SYMMETRIC DIFFERENCE\n");
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print_set(set2);
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printf("=\n");
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print_set(set6);
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set_free(set1, NULL);
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set_free(set2, NULL);
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set_free(set3, NULL);
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set_free(set4, NULL);
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set_free(set5, NULL);
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set_free(set6, NULL);
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return 0;
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}
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