Change Details

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); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ``` This is a backport of secp256k1#1009

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); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ``` This is a backport of [[https://github.com/bitcoin-core/secp256k1/pull/1009 | secp256k1#1009]]

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); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ``` This is a backport of [[https://github.com/bitcoin-core/secp256k1/pull/1009 | secp256k1#1009]]