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Merge #18853: wallet: Fix typo in assert that is compile-time true

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fa47cf9d95 wallet: Fix typo in assert that is compile-time true (MarcoFalke)

Pull request description:

  Commit 92bcd70808 presumably added a check that a `dest` of type `CNoDestination` implies an empty `scriptChange`.

  However, it accidentally checked for `boost::variant::empty`, which always returns false: https://www.boost.org/doc/libs/1_72_0/doc/html/boost/variant.html#id-1_3_46_5_4_1_1_16_2-bb

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Tree-SHA512: 9626b1e2947039853703932a362c2ee204e002d3344856eb93eef0e0f833401336f2dfa80fd43b83c8ec6eac624e6302aee771fb67aec436ba6483be02b8d615
This commit is contained in:
Wladimir J. van der Laan 2020-05-06 14:19:26 +02:00
commit 88b2652fad
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2 changed files with 11 additions and 2 deletions
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6
src/test/script_standard_tests.cpp
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@ -13,6 +13,12 @@
BOOST_FIXTURE_TEST_SUITE(script_standard_tests, BasicTestingSetup)
BOOST_AUTO_TEST_CASE(dest_default_is_no_dest)
{
CTxDestination dest;
BOOST_CHECK(!IsValidDestination(dest));
}
BOOST_AUTO_TEST_CASE(script_standard_Solver_success)
{
CKey keys[3];

7
src/wallet/wallet.cpp
View file

@ -2713,7 +2713,10 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CTransac
error = _("Transaction needs a change address, but we can't generate it. Please call keypoolrefill first.");
}
scriptChange = GetScriptForDestination(dest);
assert(!dest.empty() || scriptChange.empty());
// A valid destination implies a change script (and
// vice-versa). An empty change script will abort later, if the
// change keypool ran out, but change is required.
CHECK_NONFATAL(IsValidDestination(dest) != scriptChange.empty());
}
CTxOut change_prototype_txout(0, scriptChange);
coin_selection_params.change_output_size = GetSerializeSize(change_prototype_txout);
@ -2930,7 +2933,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CTransac
continue;
}
// Give up if change keypool ran out and we failed to find a solution without change:
// Give up if change keypool ran out and change is required
if (scriptChange.empty() && nChangePosInOut != -1) {
return false;
}