You posted twice.
This looks like something related to const ness. I'll have a look at
what I can do. Seems like we need to add some const in the
Module_generated_CppMethod.h file
e.g.
SEXP operator()( Class* object, SEXP*) const {
return Rcpp::module_wrap<OUT>( (object->*met)( ) ) ;
}
...
Romain
Le 02/04/13 13:15, Robin Girard a écrit :
Hello list,
I'm having troubles using module on a class that redefines a vector of Mytype
where Mytype is type that has several children types. Mytype has only methods
while cihldren inherit methods and have fields that are double or integer or
string.
- when I remove inheritance everything work fine.
- with inheritance, when I remove the push_back function redeclaration
everything works fine
- I am using the .derives in the module definitions
I understand that I fully fall into the known shortcomming annouced in the Rcpp
module vignette, I have tryed to read more about wrap (where my problem seems
to be) digging into RcppArmadillo and RcppGSL, but it's a bit over my level of
understanding for now since I'm new to cpp and don't fully understand template
programming. I would like to know if there is a simple workaround in my case.
The end of the error message in case this helps (Mytype is consumptionMean):
C:/R/R-2.15.2/library/Rcpp/include/Rcpp/internal/wrap.h:882:96: instantiated from
'SEXPREC* Rcpp::module_wrap(const T&) [with T = consumptionMean, SEXP =
SEXPREC*]'
C:/R/R-2.15.2/library/Rcpp/include/Rcpp/module/Module_generated_CppMethod.h:104:138:
instantiated from 'SEXPREC* Rcpp::CppMethod1<Class, OUT,
U0>::operator()(Class*, SEXPREC**) [with Class = consumptionMean_vec, OUT =
consumptionMean, U0 = int, SEXP = SEXPREC*]'
Mymodules.cc:84:1: instantiated from here
C:/R/R-2.15.2/library/Rcpp/include/Rcpp/internal/wrap.h:451:11: error: passing
'const consumptionMean' as 'this' argument of 'consumptionMean::operator
SEXP()' discards qualifiers
Best
R.
Dr. Girard Robin
Chargé de Recherche
MINES-ParisTech / Département Energétique et Procédés / PERSEE / Groupe ERSEI
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