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[algs] Test hb_hash()

This commit is contained in:
Behdad Esfahbod 2022-06-03 02:21:46 -06:00
parent 7aacdd05bd
commit f3a8b7f36b
1 changed files with 15 additions and 0 deletions
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15
src/test-algs.cc
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@ -26,6 +26,7 @@
#include "hb.hh"
#include "hb-algs.hh"
#include "hb-set.hh"
static char *
@ -91,5 +92,19 @@ main (int argc, char **argv)
assert (++hb_inc (x) == 3);
assert (x == 3);
hb_set_t set1 {1};
hb_set_t set2 {2};
assert (hb_hash (set1) != hb_hash (set2));
assert (hb_hash (set1) == hb_hash (hb_set_t {1}));
assert (hb_hash (set1) != hb_hash (hb_set_t {}));
assert (hb_hash (set1) != hb_hash (hb_set_t {2}));
assert (hb_hash (set2) == hb_hash (hb_set_t {2}));
/* hb_hash, unlike std::hash, dereferences pointers. */
assert (hb_hash (set1) == hb_hash (&set1));
assert (hb_hash (set1) == hb_hash (hb::shared_ptr<hb_set_t> {hb_set_reference (&set1)}));
assert (hb_hash (set1) == hb_hash (hb::unique_ptr<hb_set_t> {hb_set_reference (&set1)}));
return 0;
}