在ubuntu上警告rcppnumerical和rcppeigen 18.04

Question

每次使用rcppeigen或rcppnumerical时，我都会在控制台中获得很长的警告消息。

/home/Haache/R/x86_64-pc-linux-gnu-library/3.4/RcppEigen/include/Eigen/src/Core/util/XprHelper.h:170:83: warning: ignoring attributes on template argument ‘Eigen::internal::packet_traits<double>::type {aka __vector(2) double}’ [-Wignored-attributes]
/home/Haache/R/x86_64-pc-linux-gnu-library/3.4/RcppEigen/include/Eigen/src/Core/util/XprHelper.h:170:83: warning: ignoring attributes on template argument ‘Eigen::internal::unpacket_traits<__vector(2) double>::half {aka __vector(2) double}’ [-Wignored-attributes]
/home/Haache/R/x86_64-pc-linux-gnu-library/3.4/RcppEigen/include/Eigen/src/Core/util/XprHelper.h:188:88: warning: ignoring attributes on template argument ‘Eigen::internal::packet_traits<double>::type {aka __vector(2) double}’ [-Wignored-attributes]
   typedef typename find_best_packet_helper<Size,typename packet_traits<T>::type>::type type;
                                                                                        ^~~~

In file included from /home/Haache/R/x86_64-pc-linux-gnu-library/3.4/RcppEigen/include/Eigen/Core:430:0,
                 from /home/Haache/R/x86_64-pc-linux-gnu-library/3.4/RcppEigen/include/Eigen/Dense:1,
                 from /home/Haache/R/x86_64-pc-linux-gnu-library/3.4/RcppEigen/include/RcppEigenForward.h:30,
                 from /home/Haache/R/x86_64-pc-linux-gnu-library/3.4/RcppEigen/include/RcppEigen.h:25,
                 from /home/Haache/R/x86_64-pc-linux-gnu-library/3.4/RcppNumerical/include/RcppNumerical.h:10,
                 from PeerCount.cpp:3:

但是，代码效果很好。我获得了任何代码的代码。我加载后出现警告

#include <RcppEigen.h>

或

#include <RcppNumerical.h>

我所有的包裹都是最新的

Answer 1

正如Dirk在评论中所说的那样，您可以将-wno-dignored-atributes添加到编译器标志。您可以通过创建文件〜/.r/makevars并添加来实现这一目标

CXXFLAGS+=-Wno-ignored-attributes
CXX11FLAGS+=-Wno-ignored-attributes
CXX14FLAGS+=-Wno-ignored-attributes