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#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "testcases.h"
#include "sorters.h"
#define CMP_WIDTH 12
#define MS_WIDTH 6
#define SORT_WIDTH 16
#define TEST_WIDTH (CMP_WIDTH + MS_WIDTH + 1)
#define SIZE_WIDTH 10
static inline unsigned long timediff_ms(struct timespec *start, struct timespec *stop)
{
return 1000 * (stop->tv_sec - start->tv_sec) + (stop->tv_nsec - start->tv_nsec) / 1000000;
}
int main()
{
struct timespec start, stop;
printf("%-*s ", SORT_WIDTH, "");
for (const struct testcase *t = testcases; t->name; t++)
printf("%*s ", TEST_WIDTH, t->name);
printf(" %*s\n%-*s ", SIZE_WIDTH, "elements", SORT_WIDTH, "");
for (const struct testcase *t = testcases; t->name; t++)
printf("%*s %*s ", CMP_WIDTH, "compares", MS_WIDTH, "ms");
puts("");
for (const struct sorter *s = sorters; s->name; s++) {
for (size_t size = MIN_SIZE; size <= MAX_SIZE; size *= 10) {
printf("%-*s ", SORT_WIDTH, size == MIN_SIZE ? s->name : "");
for (const struct testcase *t = testcases; t->name; t++) {
comparisons = 0;
t->init(size);
if (clock_gettime(CLOCK_THREAD_CPUTIME_ID, &start)) abort();
s->func(buffer, size, sizeof(int), t->cmp);
if (clock_gettime(CLOCK_THREAD_CPUTIME_ID, &stop)) abort();
printf("%*lu %*lu ", CMP_WIDTH, comparisons, MS_WIDTH, timediff_ms(&start, &stop));
assert_sorted(size, t->cmp);
}
printf(" %*zu\n", SIZE_WIDTH, size);
}
puts("");
}
return 0;
}
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