[Bug c++/98368] Seg fault on template method missing required return statement

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98368

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |marxin at gcc dot gnu.org
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
That's expected behavior as your code triggers an undefined behavior:

$  g++ pr98368.C -std=c++17 -fsanitize=undefined,address && ./a.out 
pr98368.C: In instantiation of ‘SomeTemplate<Type1, Type2>::NodeOffsetType
SomeTemplate<Type1, Type2>::Foo(const Type3&) const [with Type3 = int; Type1 =
int; Type2 = int; SomeTemplate<Type1, Type2>::NodeOffsetType = long int]’:
pr98368.C:25:16:   required from here
pr98368.C:20:1: warning: no return statement in function returning non-void
[-Wreturn-type]
   20 | }
      | ^
pr98368.C:16:53: runtime error: execution reached the end of a value-returning
function without returning a value
    #0 0x401334 in long SomeTemplate<int, int>::Foo<int>(int const&) const
(/home/marxin/Programming/testcases/a.out+0x401334)
    #1 0x40127e in main (/home/marxin/Programming/testcases/a.out+0x40127e)
    #2 0x7ffff676e151 in __libc_start_main (/lib64/libc.so.6+0x28151)
    #3 0x4010ed in _start (/home/marxin/Programming/testcases/a.out+0x4010ed)