Qt MOC error for namespace like FOO::BAR

Question

I've got a namespace like

namespace FOO::BAR {
    [..] myNameSpaceContent [..]
}

The MOC compiler spots an error on the first ligne. This error disappears when I put :

namespace FOO {
    namespace BAR {
        [..] myNameSpaceContent [..]
    }
}

Do you happen to know how I can solve that MOC problem ?

@EricFortin: I guess no, because the OP does not know that the first is not valid C++. — Sebastian Mach, Mar 10 '14 at 16:25
This is valid C++17 code, apparently Qt MOC does not support it prior to version 5.8 as noted on https://github.com/SFTtech/openage/issues/1043#issuecomment-429622677 — Xeverous, Sep 28 '22 at 15:24

Sebastian Mach · Answer 1 · 2019-02-05T14:28:36.700

2

It is not a MOC problem, but rather a C++ issue;

namespace FOO::BAR {

is not valid syntax prior to C++17, unfortunately. Only

namespace FOO { namespace BAR {

is okay.

edited Feb 05 '19 at 14:28

answered Mar 10 '14 at 16:24

Sebastian Mach

As of C++17, `namespace FOO::BAR {` is value syntax. – Zendel Feb 05 '19 at 13:58

1 Answers1