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refactor: cast bool to int to silence compiler warning

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This fixes -Wbitwise-instead-of-logical compiler warnings:

node/interfaces.cpp:544:16: warning: use of bitwise '&' with boolean operands [-Wbitwise-instead-of-logical]
        return FillBlock(ancestor, ancestor_out, lock, active) & FillBlock(block1, block1_out, lock, active) & FillBlock(block2, block2_out, lock, active);
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                                                                             &&
node/interfaces.cpp:544:16: note: cast one or both operands to int to silence this warning
node/interfaces.cpp:544:16: warning: use of bitwise '&' with boolean operands [-Wbitwise-instead-of-logical]
        return FillBlock(ancestor, ancestor_out, lock, active) & FillBlock(block1, block1_out, lock, active) & FillBlock(block2, block2_out, lock, active);
               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                               &&
node/interfaces.cpp:544:16: note: cast one or both operands to int to silence this warning
2 warnings generated.

A similar change was recently made to libsecp in commit 16d13221
for the same reason.
This commit is contained in:
Jon Atack
2021-11-22 12:08:24 +01:00
parent 3a36ec83d0
commit ab22a71429
1 changed files with 5 additions and 2 deletions
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7
src/node/interfaces.cpp
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@@ -540,8 +540,11 @@ public:
const CBlockIndex* block2 = m_node.chainman->m_blockman.LookupBlockIndex(block_hash2);
const CBlockIndex* ancestor = block1 && block2 ? LastCommonAncestor(block1, block2) : nullptr;
// Using & instead of && below to avoid short circuiting and leaving
// output uninitialized.
return FillBlock(ancestor, ancestor_out, lock, active) & FillBlock(block1, block1_out, lock, active) & FillBlock(block2, block2_out, lock, active);
// output uninitialized. Cast bool to int to avoid -Wbitwise-instead-of-logical
// compiler warnings.
return int{FillBlock(ancestor, ancestor_out, lock, active)} &
int{FillBlock(block1, block1_out, lock, active)} &
int{FillBlock(block2, block2_out, lock, active)};
}
void findCoins(std::map<COutPoint, Coin>& coins) override { return FindCoins(m_node, coins); }
double guessVerificationProgress(const uint256& block_hash) override