特征张量的问题:声明矛盾

Question

我刚刚尝试使用GCC 4.9中的CodeBlocks 16.01中的特征张量模块。如http://eigen.tuxfamily.org/index.php?title = tensor_support i添加-std = c 0x，-std = c 11或-std = c 1y作为编译器标志，但i无法使它起作用。已经

#include <unsupported/Eigen/CXX11/Tensor>

根据我使用的标志产生错误消息。如果是-std = C 0x或-std = C 11

||=== Build: Debug in Test (compiler: GNU GCC Compiler) ===|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11Tensor|52|error: conflicting declaration 'typedef long int int32_t'|
C:Program Files (x86)CodeBlocksMinGWincludestdint.h|31|note: previous declaration as 'typedef int int32_t'|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11Tensor|53|error: conflicting declaration 'typedef long unsigned int uint32_t'|
C:Program Files (x86)CodeBlocksMinGWincludestdint.h|32|note: previous declaration as 'typedef unsigned int uint32_t'|
||=== Build failed: 2 error(s), 0 warning(s) (0 minute(s), 1 second(s)) ===|

，对于-std = C 1y，我收到其他错误消息：

||=== Build: Debug in Test (compiler: GNU GCC Compiler) ===|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreutilIntegralConstant.h|187|error: template declaration of 'const Eigen::internal::FixedInt<N> Eigen::fix'|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreutilIndexedViewHelper.h|63|error: 'fix' was not declared in this scope|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreutilIndexedViewHelper.h|63|error: expected primary-expression before ')' token|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|142|error: 'fix' was not declared in this scope|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|142|error: 'fix' was not declared in this scope|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|142|error: expected primary-expression before ')' token|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h||In member function 'decltype (Eigen::seqN((((const Eigen::ArithmeticSequence<FirstType, SizeType, IncrType>*)this)->Eigen::ArithmeticSequence<FirstType, SizeType, IncrType>::m_first + ((((((const Eigen::ArithmeticSequence<FirstType, SizeType, IncrType>*)this)->Eigen::ArithmeticSequence<FirstType, SizeType, IncrType>::m_size + <expression error>) < (-1)) > <expression error>) * ((const Eigen::ArithmeticSequence<FirstType, SizeType, IncrType>*)this)->Eigen::ArithmeticSequence<FirstType, SizeType, IncrType>::|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|143|error: 'fix' was not declared in this scope|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|143|error: expected primary-expression before ')' token|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|207|error: 'fix' was not declared in this scope|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|207|error: 'fix' was not declared in this scope|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|207|error: expected primary-expression before ')' token|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h||In function 'decltype (Eigen::seqN((typename Eigen::internal::cleanup_index_type<FirstType>::type)(f), (((((typename Eigen::internal::cleanup_index_type<SizeType>::type)(l) - (typename Eigen::internal::cleanup_index_type<FirstType>::type)(f)) + <expression error>) < 1) > <expression error>))) Eigen::seq(FirstType, LastType)':|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|211|error: 'fix' was not declared in this scope|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11......EigensrcCoreArithmeticSequence.h|211|error: expected primary-expression before ')' token|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11Tensor|52|error: conflicting declaration 'typedef long int int32_t'|
C:Program Files (x86)CodeBlocksMinGWincludestdint.h|31|note: previous declaration as 'typedef int int32_t'|
C:Program Files (x86)CodeBlockseigen-eigen-c2947c341c68unsupportedEigenCXX11Tensor|53|error: conflicting declaration 'typedef long unsigned int uint32_t'|
C:Program Files (x86)CodeBlocksMinGWincludestdint.h|32|note: previous declaration as 'typedef unsigned int uint32_t'|
||=== Build failed: 15 error(s), 0 warning(s) (0 minute(s), 1 second(s)) ===|

关于我做错了什么或如何解决的想法？预先感谢

Answer 1

这可能是因为您的编译器DOEST不支持变量模板。由于GCC 5，因此支持可变模板。

https://www.gnu.org/software/gcc/projects/cxx-status.html

您可以升级编译器或修改特征源代码。