Test ECPG decadd(), decdiv(), decmul(), and decsub() for risnull() input. Since commit 757fb0e5a9a61ac8d3a67e334faeea6dc0084b3f, these Informix-compat functions return 0 without changing the output parameter. Initialize the output parameter before the test call, making that obvious. Before this, the expected test output has been depending on freed stack memory. "gcc -ftrivial-auto-var-init=pattern" revealed that. Back-patch to v13 (all supported versions).
Discussion: https://postgr.es/m/20250106192748.cf.nmi...@google.com Branch ------ REL_15_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/216294ba592fdfaa38bdf9767527f8424bd29b14 Modified Files -------------- .../ecpg/test/compat_informix/dec_test.pgc | 10 + .../ecpg/test/expected/compat_informix-dec_test.c | 10 + .../test/expected/compat_informix-dec_test.stdout | 232 ++++++++++----------- 3 files changed, 136 insertions(+), 116 deletions(-)
