https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91878
Bug ID: 91878
Summary: No sanitizer report for past-end access of std∷set
Product: gcc
Version: 9.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: Hi-Angel at yandex dot ru
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org, marxin at
gcc dot gnu.org
Target Milestone: ---
# Steps to reproduce (in terms of terminal commands)
$ cat test2.cpp
#include <set>
#include <cstdio>
int main() {
std::set<int> s{};
printf("%i\n", *s.begin());
}
$ g++ test2.cpp -o a -g3 -O0 -fsanitize=address,undefined
$ ./a
## Expected
It either crashes on past-end access, or produces a warning (depending on
whether it's handled as a past-end access or UB).
## Actual
It prints:
0
