Issue when check-header=false

[Charles-the-intern]

When disable check-header, cppcheck attempts to "simplify" the content of the header by keeping only the declaration of functions/classes and remove definition... With the example below, seems like cppcheck removes sth that shouldn't be removed?

main.h

namespace ns {
    class Object;

    class foo {
    private: 
        int i;

    public:
        int Get() {
            return i;
        }
    };
}

main.cpp

#include "main.h"

int main() {

    return 0;
}

--debug

##file main.h
2: namespace ns {
3: class Object ;
4:
|
13:
14: }

##file main.cpp

1:
2:
3:
4: int main ( ) {
5:
6: return 0 ;
7: }



##Value flow
Line 6
  0 always 0

.cppcheck file

<?xml version="1.0" encoding="UTF-8"?>
<project version="1">
    <platform>win64</platform>
    <analyze-all-vs-configs>false</analyze-all-vs-configs>
    <check-headers>false</check-headers>
    <check-unused-templates>false</check-unused-templates>
    <max-ctu-depth>5</max-ctu-depth>
    <max-template-recursion>5</max-template-recursion>
</project>

[Charles-the-intern]

class foo wasn't used, so cppcheck simply removes the entire class definition... This is not a bug and this post can be ignored