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xo-arena: DArenaHashMap: improve sentinel abstraction for control

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This commit is contained in:
Roland Conybeare 2026-01-08 12:41:29 -05:00
commit dcd8ced1cd
2 changed files with 27 additions and 69 deletions
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52
utest/random_hash_ops.hpp
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@ -596,58 +596,6 @@ namespace utest {
} /*check_bidirectional_iterator*/
#endif
#ifdef NOT_YET
/** Require:
* - tree has keys [0..n-1], where n=treesize()
* - tree valu at key k is dvalue+10*k
*
* @p catch_flag. control behavior at each test assertion.
* true -> log to console + interact with catch2
* false -> verify iteration behavior for return code.
*
**/
static bool
check_reduced_sum(uint32_t dvalue,
bool catch_flag,
Tree const & rbtree)
{
using xo::scope;
using xo::xtag;
scope log(XO_DEBUG(catch_flag));
/* -> false if/when check fails */
bool ok_flag = true;
size_t const n = rbtree.size();
for(size_t i = 0; i < n; ++i) {
/* compute reduction up to key=i */
double reduced_upto
= rbtree.reduce_lub(i /*key*/,
true /*is_closed*/);
double reduced = (i+1) * (5*i + dvalue);
INFO(tostr(xtag("i", i), xtag("n", n),
xtag("tree.reduced_upto", reduced_upto),
xtag("reduced", reduced),
xtag("dvalue", dvalue)));
auto glb_ix = rbtree.cfind_sum_glb(reduced);
REQUIRE_ORFAIL(ok_flag, catch_flag, reduced_upto == reduced);
REQUIRE_ORFAIL(ok_flag, catch_flag, glb_ix.is_dereferenceable());
/* glb_ix is truth-y */
REQUIRE_ORFAIL(ok_flag, catch_flag, glb_ix);
REQUIRE_ORFAIL(ok_flag, catch_flag, glb_ix->first == i);
}
return ok_flag;
} /*check_reduced_sum*/
#endif
#ifdef NOT_YET
/* Require:
* - *p_rbtree has keys [0..n-1], where n=rbtree.size()