#ifndef R_CXX20_REQUIRED
#define R_CXX20_REQUIRED

#include <rlib/sys/os.hpp>

#if RLIB_CXX_STD <= 2017
#error This file requires compiler and library support \
for the ISO C++ 2020 standard. This support must be enabled \
with the -std=c++20 or -std=c++2a compiler options.
#endif

#endif
