c++ - Qt MOC error for namespace like FOO::BAR -

i've got namespace

namespace foo::bar {     [..] mynamespacecontent [..] }

the moc compiler spots error on first ligne. error disappears when put :

namespace foo {     namespace bar {         [..] mynamespacecontent [..]     } }

do happen know how can solve moc problem ?

it not moc problem, rather c++ issue;

namespace foo::bar {

is not valid syntax, unfortunately.

namespace foo { namespace bar {

is okay.

And