https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100700
Bug ID: 100700
Summary: -Wreturn-type has many false positives
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gonzalo.gadeschi at gmail dot com
Target Milestone: ---
Example (https://clang.godbolt.org/z/o85KbdG7h):
int f(unsigned i) {
if (i < unsigned(-1)) return i;
}
enum E { A, B };
int h(E e) {
switch (e) {
case A: return 0;
case B: return 0;
}
}
compiled with g++ (no -Wall, no -Wextra) warns with:
warning: control reaches end of non-void function [-Wreturn-type]
for "f" and "h".
Notice that clang, which implements the same warning, does not warn for "h"
(https://clang.godbolt.org/z/Ev9eqsqPf).
