Ubuntu 18.04 上的 RcppNumerical 和 RcppEigen 警告

Question

每次使用 RcppEigen 或 RcppNumerical 时，我都会在控制台中收到一条很长的警告消息。

/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，代码运行良好。我为任何代码获取此代码。加载

后会出现警告

#include <RcppEigen.h>

或

#include <RcppNumerical.h>

我所有的包都是最新的

Answer 1

正如德克在评论中所说，您可以将 -Wno-ignored-attributes 添加到编译器标志中。您可以通过创建文件 ~/.R/Makevars 并添加

来实现

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

Ubuntu 18.04 上的 RcppNumerical 和 RcppEigen 警告

Warning in RcppNumerical and RcppEigen on Ubuntu 18.04

r

numeric

rcpp

eigen