backports.h

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// -*- C++ -*-
 
#ifndef _POMP_BACKPORTS_H_
#define _POMP_BACKPORTS_H_
 
#include <Rversion.h>
 
// Some backports needed for older versions of R.
// Taken from
// https://cran.r-project.org/doc/manuals/r-devel/R-exts.html#Some-backports
// These are not necessarily all used in the package code.
 
#if R_VERSION < R_Version(4, 5, 0)
 
# define isDataFrame(x) Rf_isFrame(x)
# define R_ClosureFormals(x) FORMALS(x)
# define R_ClosureEnv(x) CLOENV(x)
# define R_ParentEnv(x) ENCLOS(x)
 
#endif
 
#endif