Re: C++ Base Class Not Recognized

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You don't show all the inputs. You should fully qualify the types in
%template. If that doesn't work write a simple reproducible example and
post here.

William

On Tue, 12 May 2026 at 21:41, William Tribley <[email protected]> wrote:

> Greetings,
> I have this c++ code:
>
>
> namespace ModelAPI
> {
>         class ModelSignalBase
>         {
>         public:
>                 ModelSignalBase()
>                 {
> ....
>
>         class ModelSignal : public ModelSignalBase
>         {
>         public:
>                 /// <summary>
>                 /// Copy constructor.
>                 /// </summary>
>                 /// <param name="ms">ModelSignal to copy.</param>
>                 ModelSignal(const ModelSignal& ms)
> ....
>
>
> In the generated cxx file the namespace is not included:
>
> ...
> SWIGEXPORT void JNICALL Java_TiwsModelApiJNI_modelSignals_1set(JNIEnv
> *jenv, jclass jcls, jlong jarg1) {
>   std::vector< ModelSignalBase * > arg1 ;
>   std::vector< ModelSignalBase * > *argp1 ;
>
>   (void)jenv;
>   (void)jcls;
>   argp1 = *(std::vector< ModelSignalBase * > **)&jarg1;
>   if (!argp1) {
> ...
>
> The entire class structure that I'm wrapping in SWIG is in namespace
> ModelAPI. The code compiles and runs in C++.
>
> Any hints or ideas appreciated.
>
> Best regards,
> Bill
>
>
> _______________________________________________
> Swig-user mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/swig-user
>

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<div dir=3D"ltr"><div>You don&#39;t show all the inputs. You should fully q=
ualify the types in %template. If that doesn&#39;t work write a simple repr=
oducible example and post here.</div><div><br></div><div>William</div></div=
><br><div class=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr" clas=
s=3D"gmail_attr">On Tue, 12 May 2026 at 21:41, William Tribley &lt;<a href=
=3D"mailto:[email protected]">[email protected]</a>&gt; wrote:<br></div><bloc=
kquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:=
1px solid rgb(204,204,204);padding-left:1ex">Greetings,<br>
I have this c++ code:<br>
<br>
<br>
namespace ModelAPI<br>
{<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 class ModelSignalBase<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 {<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 public:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ModelSignalBase() <=
br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 { <br>
....<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 class ModelSignal : public ModelSignalBase<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 {<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 public:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 /// &lt;summary&gt;=
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 /// Copy constructo=
r.<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 /// &lt;/summary&gt=
;<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 /// &lt;param name=
=3D&quot;ms&quot;&gt;ModelSignal to copy.&lt;/param&gt;<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ModelSignal(const M=
odelSignal&amp; ms)<br>
....<br>
<br>
<br>
In the generated cxx file the namespace is not included:<br>
<br>
...<br>
SWIGEXPORT void JNICALL Java_TiwsModelApiJNI_modelSignals_1set(JNIEnv *jenv=
, jclass jcls, jlong jarg1) {<br>
=C2=A0 std::vector&lt; ModelSignalBase * &gt; arg1 ;<br>
=C2=A0 std::vector&lt; ModelSignalBase * &gt; *argp1 ;<br>
<br>
=C2=A0 (void)jenv;<br>
=C2=A0 (void)jcls;<br>
=C2=A0 argp1 =3D *(std::vector&lt; ModelSignalBase * &gt; **)&amp;jarg1; <b=
r>
=C2=A0 if (!argp1) {<br>
...<br>
<br>
The entire class structure that I&#39;m wrapping in SWIG is in namespace Mo=
delAPI. The code compiles and runs in C++.<br>
<br>
Any hints or ideas appreciated.<br>
<br>
Best regards,<br>
Bill<br>
<br>
<br>
_______________________________________________<br>
Swig-user mailing list<br>
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[email protected]</a><br>
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wig-user</a><br>
</blockquote></div>

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