Date: Wed, 13 Mar 2019 12:57:33 +0100 From: Willem Jan Withagen <wjw@digiware.nl> To: FreeBSD Toolchain <freebsd-toolchain@freebsd.org> Subject: Is this a programming error, or a compiler error.. Message-ID: <bc4f8f4f-55c9-63ed-1ce8-b53d95a0696a@digiware.nl>
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Hi,
I'm getting a crash in a Ceph test program in the following pice of code:
struct entity_addrvec_t {
vector<entity_addr_t> v;
.....
entity_addr_t legacy_addr() const {
for (auto& a : v) {
if (a.type == entity_addr_t::TYPE_LEGACY) {
return a;
}
}
return entity_addr_t();
}
......
Where the loop is taken, even if v.size() == 0
So v content is pointing to random memory and itterating over the next
pointer results in a crash.
I would expect the loop not to be executed....
--WjW
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