On 2014.10.28 at 14:16 +0400, Alex Markin wrote:
> Thanks for the answer.
>
> > The compiler cannot warn, it has no way to know when compiling t1.cpp
> > that there's a different definition in t2.cpp, and vice versa.
>
> And what about lto (now it does not warn)?
gcc-5 warns:
% g++ -flto -Wodr *cpp -O1 && ./a.out
t1.cpp:4:7: warning: type ‘struct A’ violates one definition rule [-Wodr]
class A
^
t2.cpp:5:7: note: a different type is defined in another translation unit
class A
^
t1.cpp:8:9: note: the first difference of corresponding definitions is field ‘a’
int a;
^
t2.cpp:9:10: note: a field with different name is defined in another translation unit
int b;
^
--
Markus
