Files
C-Macro-Collections/examples/iterators/hashmap.c
T
2019-11-22 00:11:01 -08:00

80 lines
1.8 KiB
C

/**
* hashmap.c
*
* Creation Date: 11/04/2019
*
* Authors:
* Leonardo Vencovsky (https://github.com/LeoVen)
*
*/
#include "cmc/hashmap.h"
#include <stdio.h>
CMC_GENERATE_HASHMAP(hm, hmap, int, double)
typedef struct hmap hmap;
typedef struct hmap_iter hmap_iter;
size_t inthash(int t)
{
size_t a = t;
a += ~(a << 15);
a ^= (a >> 10);
a += (a << 3);
a ^= (a >> 6);
a += ~(a << 11);
a ^= (a >> 16);
return a;
}
int intcmp(int a, int b)
{
return (a > b) - (a < b);
}
int main(int argc, char const *argv[])
{
double varr[10] = {0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9};
// Initialize hashmap and add some element
hmap *hm = hm_new(50, 0.9, intcmp, inthash);
for (int i = 0; i < 10; i++)
hm_insert(hm, i, varr[i]);
// Initialize iterator
hmap_iter iter;
hm_iter_init(&iter, hm);
for (int j = 0; j < 4; j++)
{
while (!hm_iter_end(&iter))
{
printf("C[%2d] = { %2d : %2.2lf }\n", hm_iter_index(&iter), hm_iter_key(&iter), hm_iter_value(&iter));
hm_iter_next(&iter);
}
printf("\n");
while (!hm_iter_start(&iter))
{
printf("C[%2d] = { %2d : %2.2lf }\n", hm_iter_index(&iter), hm_iter_key(&iter), hm_iter_value(&iter));
hm_iter_prev(&iter);
}
printf("\n\n");
}
for (hm_iter_to_start(&iter); !hm_iter_end(&iter); hm_iter_next(&iter))
{
printf("HM[%2d] = { %2d : %2.2lf }\n", hm_iter_index(&iter), hm_iter_key(&iter), hm_iter_value(&iter));
}
printf("\n");
for (hm_iter_to_end(&iter); !hm_iter_start(&iter); hm_iter_prev(&iter))
{
printf("HM[%2d] = { %2d : %2.2lf }\n", hm_iter_index(&iter), hm_iter_key(&iter), hm_iter_value(&iter));
}
hm_free(hm, NULL);
return 0;
}