Question

我在2013年的visual visual studio上安装了armadillo库。当我试图构建解决方案时。发生以下构建错误。任何帮助将不胜感激。

1>------ Build started: Project: ConsoleApplication1, Configuration: Debug x64 ------
1>  Source.cpp
1>c:\users\haixun\desktop\test_programs\testingapplication\armadillo-5.100.2\include\armadillo_bits/diskio_meat.hpp(787): error C4146: unary minus operator applied to unsigned type, result still unsigned
1>          c:\users\haixun\desktop\test_programs\testingapplication\armadillo-5.100.2\include\armadillo_bits/diskio_meat.hpp(1626) : see reference to function template instantiation 'bool arma::diskio::convert_naninf<eT>(eT &,const std::string &)' being compiled
1>          with
1>          [
1>              eT=arma::u32
1>          ]
1>          c:\users\haixun\desktop\test_programs\testingapplication\armadillo-5.100.2\include\armadillo_bits/diskio_meat.hpp(1652) : see reference to function template instantiation 'bool arma::diskio::load_arma_ascii<arma::u32>(arma::Mat<arma::u32> &,std::istream &,std::string &)' being compiled
1>          c:\users\haixun\desktop\test_programs\testingapplication\armadillo-5.100.2\include\armadillo_bits/diskio_meat.hpp(1571) : see reference to function template instantiation 'bool arma::diskio::load_arma_ascii<double>(arma::Mat<double> &,std::istream &,std::string &)' being compiled
1>          c:\users\haixun\desktop\test_programs\testingapplication\armadillo-5.100.2\include\armadillo_bits/Mat_meat.hpp(6553) : see reference to function template instantiation 'bool arma::diskio::load_arma_ascii<double>(arma::Mat<double> &,const std::string &,std::string &)' being compiled
1>          c:\users\haixun\desktop\test_programs\testingapplication\armadillo-5.100.2\include\armadillo_bits/Mat_meat.hpp(6536) : while compiling class template member function 'bool arma::Mat<double>::load(const std::string,const arma::file_type,const bool)'
1>          Source.cpp(50) : see reference to function template instantiation 'bool arma::Mat<double>::load(const std::string,const arma::file_type,const bool)' being compiled
1>          c:\users\haixun\desktop\test_programs\testingapplication\armadillo-5.100.2\include\armadillo_bits/typedef_mat_fixed.hpp(41) : see reference to class template instantiation 'arma::Mat<double>' being compiled
1>c:\users\haixun\desktop\test_programs\testingapplication\armadillo-5.100.2\include\armadillo_bits/diskio_meat.hpp(794): error C4146: unary minus operator applied to unsigned type, result still unsigned
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

Answer 1

很抱歉，有人对您的问题进行了低估;这对我来说似乎很合理。

这些是警告，在这种特殊情况下是无害的。您必须启用该选项才能将警告视为错误。您的选择似乎是：

关闭将警告视为错误的选项。
关闭该特定警告（项目范围）。
只要您nil。

选项3可能是最好的，特别是如果警告为错误选项是公司政策。确保按下并弹出警告选项;见this MSDN page on warning pragmas。你可以把整个（pragma和include）放到一个小的头文件中，这可能是一个好主意，因为Visual Studio不会自动完成#include <armadillo>（因为它没有文件扩展名））。

在Windows平台上使用Armadillo时出错

1 个答案: