Clang-SNAPSHOT emits -Wuninitialized-const-pointer in modules/musig/tests_impl.h #1728

1. 
   hebasto commented at 10:36 am on August 24, 2025: member

   In the “x86_64: Linux (Debian stable) (int64, yes, yes, yes, yes, yes, clang-snapshot)” CI job:

    0make  all-am
    1make[1]: Entering directory '/home/runner/work/secp256k1/secp256k1'
    2  CC       src/bench-bench.o
    3  CC       src/libsecp256k1_la-secp256k1.lo
    4  CC       src/libsecp256k1_precomputed_la-precomputed_ecmult.lo
    5  CC       src/libsecp256k1_precomputed_la-precomputed_ecmult_gen.lo
    6  CC       src/bench_internal-bench_internal.o
    7  CC       src/bench_ecmult-bench_ecmult.o
    8  CC       src/noverify_tests-tests.o
    9In file included from src/tests.c:7447:
   10src/modules/musig/tests_impl.h:931:79: error: variable 'keypair' is uninitialized when passed as a const pointer argument here [-Werror,-Wuninitialized-const-pointer]
   11  931 |             CHECK(secp256k1_musig_partial_sign(CTX, &partial_sig, &secnonce, &keypair, &keyagg_cache, &session));
   12      |                                                                               ^~~~~~~
   131 error generated.
   14make[1]: *** [Makefile:1412: src/noverify_tests-tests.o] Error 1
   15make[1]: *** Waiting for unfinished jobs....
   

   The same error in other CI jobs:

   • x86_64: Linux (Debian stable) (-O1, yes, yes, yes, yes, yes, yes, clang-snapshot)
   • ARM64: Linux (Debian stable, QEMU) (clang-snapshot –target=aarch64-linux-gnu)
   • …
2. hebasto closed this on Aug 24, 2025

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3. 
   hebasto commented at 11:15 am on August 24, 2025: member

   The branch in the PR description is outdated.
4. 
   real-or-random commented at 7:22 am on August 25, 2025: contributor

   This was #1706.

Contributors
hebasto real-or-random