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seeker: add a runtime debug stream

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This allows detailed but selective debugging when using the library,
particularly when something goes wrong.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2025-02-10 23:25:03 -05:00
parent 9a9644659c
commit 50e012ad6d
4 changed files with 122 additions and 116 deletions
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8
test/seeker.cc
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@ -36,6 +36,8 @@ seeker_test(const vector<uint64_t> &vec, uint64_t const target)
}
cerr << " } = ";
size_t loops = 0;
tl_seeker_debug_str = make_shared<ostringstream>();
bool local_test_fails = false;
bool excepted = catch_all([&]() {
auto found = seek_backward(target, [&](uint64_t lower, uint64_t upper) {
++loops;
@ -52,13 +54,15 @@ seeker_test(const vector<uint64_t> &vec, uint64_t const target)
cerr << " (correct)";
} else {
cerr << " (INCORRECT - right answer is " << my_found << ")";
test_fails = true;
local_test_fails = true;
}
});
cerr << " (" << loops << " loops)" << endl;
if (excepted) {
if (excepted || local_test_fails) {
cerr << dynamic_pointer_cast<ostringstream>(tl_seeker_debug_str)->str();
test_fails = true;
}
tl_seeker_debug_str.reset();
}
static