refactor: Use && in boolean context to avoid compiler warning #1006
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This fixes a compiler warning:
./src/ecdsa_impl.h:312:12: warning: use of bitwise '&' with boolean operands [-Wbitwise-instead-of-logical]
return !secp256k1_scalar_is_zero(sigr) & !secp256k1_scalar_is_zero(sigs);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
&&
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I didn't try to reproduce this, but I randomly saw it in logs on a 32-bit compilation with clang-14 (trunk) and some odd compiler flags like |
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Ah, I see. Good thing there are tests. |
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:) |
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This is in clang-14 (for now): llvm/llvm-project@f62d18f |
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If there is a need to silence anything, I think the correct approach is suggested there: cast one of the inputs to |
real-or-random
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Nov 9, 2021
…mpiler warning 16d1322 refactor: Use (int)&(int) in boolean context to avoid compiler warning (MarcoFalke) Pull request description: This one should *really* be only a refactor with the goal to silence static analysis warnings. clang-14 (trunk) recently added one in commit llvm/llvm-project@f62d18f and I expect other tools will offer similar warnings. Follow up to #1006, which was not a refactor. ACKs for top commit: real-or-random: ACK 16d1322 jonasnick: ACK 16d1322 Tree-SHA512: c465522ea4ddb58b5974c95bc36423c453e6fcf5948cb32114172113b5244209ceaa9418ec86ebe210390ae5509c2f24a42c41a7353de4cfb8fd063b0d5c0e79
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This fixes a compiler warning: