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#include <time.h>
#include <stdio.h>
#define i_key uint64_t
#define i_val uint64_t
#define i_tag u64
#define i_max_load_factor 0.8f
#include <stc/cmap.h>
uint64_t romu_rotl(uint64_t val, uint32_t r) {
return (val << r) | (val >> (64 - r));
}
uint64_t romu_trio(uint64_t s[3]) {
const uint64_t xp = s[0],
yp = s[1],
zp = s[2];
s[0] = 15241094284759029579u * zp;
s[1] = yp - xp;
s[1] = romu_rotl(s[1], 12);
s[2] = zp - yp;
s[2] = romu_rotl(s[2], 44);
return xp;
}
int main(void)
{
cmap_u64 m = {0};
const size_t n = 50000000,
mask = (1 << 25) - 1,
ms = CLOCKS_PER_SEC/1000;
cmap_u64_reserve(&m, n);
printf("STC cmap n = %" c_ZU ", mask = 0x%" PRIxMAX "\n", n, mask);
uint64_t rng[3] = {1872361123, 123879177, 87739234}, sum;
clock_t now = clock();
c_forrange (n) {
uint64_t key = romu_trio(rng) & mask;
cmap_u64_insert(&m, key, 0).ref->second += 1;
}
printf("insert : %" c_ZU "ms \tsize : %" c_ZU "\n", (clock() - now)/ms, cmap_u64_size(&m));
now = clock();
sum = 0;
c_forrange (key, mask + 1) { sum += cmap_u64_contains(&m, key); }
printf("lookup : %" c_ZU "ms \tsum : %" c_ZU "\n", (clock() - now)/ms, sum);
now = clock();
sum = 0;
c_foreach (i, cmap_u64, m) { sum += i.ref->second; }
printf("iterate : %" c_ZU "ms \tsum : %" c_ZU "\n", (clock() - now)/ms, sum);
uint64_t rng2[3] = {1872361123, 123879177, 87739234};
now = clock();
c_forrange (n) {
uint64_t key = romu_trio(rng2) & mask;
cmap_u64_erase(&m, key);
}
printf("remove : %" c_ZU "ms \tsize : %" c_ZU "\n", (clock() - now)/ms, cmap_u64_size(&m));
printf("press a key:\n"); getchar();
cmap_u64_drop(&m);
}
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