https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118116
Bug ID: 118116 Summary: FreeFem++-cs compilation error with g++-15 Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: shaydin at ktu dot edu.tr Target Milestone: --- When compiling FreeFem++-cs g++-15 gives the following error. However, g++-14 or earlier ones compiles without any error. g++-15 -DNDEBUG -O2 -I. -I../../fflib/bin_ffcs -D__DIR__='"."' -c -o lgfem.o lgfem.cpp lgfem.cpp: In member function ‘AnyType pb2mat<K>::operator()(Stack) const’: lgfem.cpp:2966:56: error: ‘const class pb2mat<K>’ has no member named ‘stack’ [-Wtemplate-body] 2966 | Problem::Data< FESpace > *data = pb->dataptr(this->stack); The corresponding part of the code is as follows; template< class K > class pb2mat : public E_F0 { public: typedef Matrice_Creuse< K > *Result; const Problem *pb; pb2mat(const basicAC_F0 &args) : pb(dynamic_cast< const Problem * > (args[0].left( ))) { ffassert(pb); } static ArrayOfaType typeargs( ) { return ArrayOfaType(atype< const Problem * >( )); } static E_F0 *f(const basicAC_F0 &args) { return new Plot(args); } AnyType operator( )(Stack s) const { Problem::Data< FESpace > *data = pb->dataptr(this->stack); if (SameType< K, double >::OK) { ffassert(!!data->AR); return SetAny< Matrice_Creuse< K > * >(&data->AR); } else { ffassert(!!data->AC); return SetAny< Matrice_Creuse< K > * >(&data->AC); } } }; You can download full code from https://www.ljll.fr/lehyaric/ffcs/packs/index.html. Selcuk Han AYDIN Karadeniz Technical University