--- a
+++ b/src/priors.h
@@ -0,0 +1,23 @@
+#ifndef OUTBREAKER2_PRIORS_H
+#define OUTBREAKER2_PRIORS_H
+
+
+
+double cpp_prior_mu(Rcpp::List param, Rcpp::List config,
+		    Rcpp::RObject custom_function);
+
+double cpp_prior_pi(Rcpp::List param, Rcpp::List config,
+		    Rcpp::RObject custom_function);
+
+double cpp_prior_eps(Rcpp::List param, Rcpp::List config,
+		     Rcpp::RObject custom_function);
+
+double cpp_prior_lambda(Rcpp::List param, Rcpp::List config,
+			Rcpp::RObject custom_function);
+
+double cpp_prior_all(Rcpp::List param, Rcpp::List config,
+		     Rcpp::RObject custom_functions = R_NilValue);
+
+
+#endif
+