Found ';' while parsing initializer list! for member function pointer

[swiesheier]

I use doxygen 1.9.5 and get

warning: Found ';' while parsing initializer list! (doxygen could be confused by a macro call without semicolon)

for the docu of a member function pointer in c++

    name::ClassB<2, 3, NumberType>(
              ClassA<dim, NumberType>::*myPtr)(const name::ClassB<2,3,NumberType> &foo) const;

If I remove the template brackets for the return type,

    name::ClassB(
                  ClassA<dim, NumberType>::*myPtr)(const name::ClassB<2,3,NumberType> &foo) const;

doxygen treats it as a function and reports

    warning: parameters of member myPtr are not documented
    warning: return type of member myPtr is not documented

Is there a preprocessor trick to work around this issue?

UPDATE:

I attached a minimal example demonstrating the problem!

mwe.cc.tar.gz

[albert-github]

Note: current doxygen version is 1.9.8

• Can you please attach a, small, self contained example (source+configuration file in a, compressed, tar or zip file) that allows us to reproduce the problem? Please don't add external links as they might not be persistent.

[swiesheier]

@albert-github I added an example that shows the problem.

Unfortunately, I can only use 1.9.5 at the moment.

[albert-github]

I see the warning with the versions 1.9.5, 1.9.8 and the current master (1.10.0 (81b6518)) also these versions have no relevant differences regarding this problem (as far as I can see quickly)

[swiesheier]

I see the warning with the versions 1.9.5, 1.9.8 and the current master (1.10.0 (81b6518)) also these versions have no relevant differences regarding this problem (as far as I can see quickly)

So there is no solution for this problem at the moment?

Interestingly, maybe this helps, if the return type of the function is changed to void, the warning does not show up. So the problem might be related to the scope resolution operator (::) that comes before the first bracket (.

[albert-github]

Interesting observation, might have to do with the handling of the < and > of the test::Foo<3,NumberType> of the line test::Foo<3,NumberType>(Foo<dim, NumberType>::*funcPtr)(

[swiesheier]

I do not know.

Do you have a clue for a solution?

[albert-github]

It is a difficult problem especially due to all the new "improvements" in the different standards that complicate things here (and also for compiler builders etc.) .

[doxygen]

The easiest workaround (that also helps to make the code more readable) is to define a type, e.g.

            /** Name for this type */
            using ThisType = Foo<dim,NumberType>;
            /** 3D Type */
            using Type3D = Foo<3,NumberType>;

            /**
            * Pointer to member func 1
            */
            Type3D(ThisType::*funcPtr)(const Type3D &arg1) const;

[doxygen]

@swiesheier Please verify if the referenced commit fixes the problem for you. Do not close the issue, this will be done automatically when the next official version is released.