MEX编译错误:未知类型名称“char16_t”

时间：2021-04-27 21:29:00

I cannot compile any MATLAB MEX code due to the following error:

由于以下错误，我无法编译任何MATLAB的MEX代码:

In file included from /Applications/MATLAB_R2013a.app/extern/include/mex.h:58:
In file included from /Applications/MATLAB_R2013a.app/extern/include/matrix.h:294:
/Applications/MATLAB_R2013a.app/extern/include/tmwtypes.h:819:9: error: unknown type name 'char16_t'
typedef char16_t CHAR16_T;

The only thing that has changed on my machine as far as I can remember is that Xcode was updated to version 5.1 (5B130a).

据我所知，在我的机器上唯一改变的是Xcode被更新为5.1 (5B130a)。

Any fix for the time being to compile MEX code in MATLAB?

在MATLAB中编译MEX代码的时间有什么问题吗?

[Running on OS 10.9.2 with Apple LLVM version 5.1 (clang-503.0.38) (based on LLVM 3.4svn)]

[运行在OS 10.9.2与苹果LLVM版本5.1 (clang-503.0.38)(基于LLVM 3.4svn)]

7 个解决方案

#1

21  

By default, the upgraded Clang doesn't set char16_t, which is required by MATLAB.

默认情况下，升级的Clang不会设置char16_t，这是MATLAB所需要的。

Quick fix

This works for C or C++ code but needs to be done on each mex command line.

这适用于C或c++代码，但需要在每个mex命令行上执行。

>> mex -Dchar16_t=uint16_t ...

Other solutions below put this definition into the mex configuration or enable C++11.

下面的其他解决方案将此定义放入到mex配置中，或者启用c++ 11。

Permanent solution

Options:

选项:

  • Add -std=c++11 to CXXFLAGS in your mex configuration file AND compile .cpp files instead of .c. The mex config file is mexopts.sh (pre-R2014a) or the .xml file indicated by mex -setup (R2014a+). This is what worked for OP, but the next option works too. Be sure to edit the active/installed config, not the system-wide reference. Try the next solution if you can't tell.
  • 在您的mex配置文件中添加-std=c++11到CXXFLAGS并编译.cpp文件，而不是.c。mex配置文件是mex。sh (pre-R2014a)或mex -setup (R2014a+)指示的.xml文件。这就是OP的作用，但是下一个选项也可以。一定要编辑活动/安装的配置，而不是系统范围的引用。如果你不知道，可以尝试下一个解决方案。
  • Use a #define or typedef to create char16_t before including mex.h (see "other workaround" below).
  • 使用#define或typedef创建char16_t，包括mex。h(参见下面的“其他工作”)。
  • In some future version of MATLAB, this will have been fixed. Re-run mex -setup to have MATLAB reconfigure it for you and it works. As of R2014a, this doesn't do the trick.
  • 在一些未来的MATLAB版本中，这将是固定的。重新运行mex -设置，让MATLAB为您重新配置它，它工作。在R2014a中，这并没有起到什么作用。
  • As a last resort, you can always modify the MATLAB installation, hacking MATLAB's tmwtypes.h as Dennis suggests, but I strongly suggest NOT modifying the MATLAB installation.
  • 作为最后的手段，您可以随时修改MATLAB的安装，破解MATLAB的tmwtypes。正如Dennis所建议的，但我强烈建议不要修改MATLAB的安装。

Note: If you are using C and cannot or don't want to change to C++, follow the solution in this other answer, OR see the alternative workaround below.

注意:如果您正在使用C，并且不能或不希望更改为c++，请按照这个其他答案的解决方案，或者在下面找到替代方法。

The other workaround

另一个解决方案

If for some reason you are not able to enable the C++11 standard, you can use the preprocessor to define char16_t. Either put #define char16_t uint16_t before #include "mex.h", or set it with the compiler command line:

如果由于某种原因您不能启用c++ 11标准，您可以使用预处理器来定义char16_t。要么将#define char16_t uint16_t放在#include“mex”之前。，或者用编译器命令行设置:

-Dchar16_t=uint16_t

Alternatively, use a typedef, again before including mex.h:

另外，在使用typedef之前，还需要使用typedef。

typedef uint16_t char16_t;

If these solutions don't work, try changing uint16_t to UINT16_T. Further yet, others have reported that simply including uchar.h brings in the type, but others don't have that header.

如果这些解决方案不起作用，请尝试将uint16_t更改为uint16_t。此外，还有些人报告说，仅仅包括uchar。h带来了类型，但是其他的没有那个标题。

#2

8  

I experienced the same error, also directly after upgrading to Xcode 5.1.

在升级到Xcode 5.1后，我也经历了同样的错误。

The relevant lines (818-824) in the file tmwtypes.h, which causes the error, are:

文件tmwtypes中的相关行(818-824)。h，导致错误的是:

#if defined(__STDC_UTF_16__) || (defined(_HAS_CHAR16_T_LANGUAGE_SUPPORT) && _HAS_CHAR16_T_LANGUAGE_SUPPORT)
typedef char16_t CHAR16_T;
#elif defined(_MSC_VER)
typedef wchar_t CHAR16_T;
#else
typedef UINT16_T CHAR16_T;
#endif

A solution is to simply change the line

一个解决办法就是简单地改变路线。

typedef char16_t CHAR16_T;

into

成

typedef UINT16_T CHAR16_T;

A must admit that I don't know if this affects any function or behaviour of mex files but at least I'm able to compile my c files again using mex.

必须承认，我不知道这是否会影响到mex文件的任何功能或行为，但至少我能够再次使用mex来编译我的c文件。

#3

2  

Please see other answers if this method doesn't work.

如果这个方法无效，请查看其他的答案。

I upgraded my gcc/g++ compilers using homebrew to version 4.8 --> gcc-4.8 and g++-4.8.

我使用homebrew升级了我的gcc/g++编译器，版本为4.8——> gcc-4.8和g++-4.8。

After that I changed the following lines in the mexopts.sh file:

在那之后，我修改了梅克斯的下面几行。sh文件:

CXXFLAGS="-fno-common -fexceptions -arch $ARCHS -isysroot $MW_SDKROOT -mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET -std=c++11"

In my mexopts.sh, this is line 150. I only added the -std=c++11 flag which is what I guess chappjc meant.

在我mexopts。sh，这是第150行。我只添加了-std=c++11标志，这是我猜的chappjc的意思。

EDIT: This is covered in the update by chappjc!

编辑:这是由chappjc更新的!

#4

2  

I just add my own experiment (C++ only). The

我只是添加了我自己的实验(只有c++)。的

#define char16_t uint16_t

was causing some problem in the other parts of the mex file. In fact, subsequently to my mex file, char16_t was properly defined. By tracking the chain of includes, the proper type char16_t is set in a file named __config :

在mex文件的其他部分造成了一些问题。事实上，后来在我的mex文件中，char16_t被正确定义。通过跟踪包含的链，在一个名为__config的文件中设置了合适的类型char16_t:

typedef __char16_t char16_t;

which is also the first file included from <algorithm>. So the hack consists in including algorithm before mex.h.

这也是 <算法> 中包含的第一个文件。因此，黑客攻击包括在墨西哥之前的算法。 

#include <algorithm>
#include "mex.h"

and the proper settings are performed, still in a multiplatform manner and without changing anything in the build configuration.

正确的设置是在一个多平台的方式下执行的，并且不会改变构建配置中的任何内容。

#5

1  

Include uchar.h before including mex.h...works fine. Also, the answer above (adding -std=c++11) only works for c++, not c.

包括uchar。包括前h mex.h……工作很好。同样，上面的答案(添加-std=c++11)只适用于c++，而不是c。

#include <uchar.h>
#include "mex.h"

#6

0  

As part of XCode 5.1.1 char16_t is defined in __config, which is called from typeinfo.

XCode 5.1.1 char16_t的一部分在__config中定义，它是从typeinfo调用的。

You can add

您可以添加

#include <typeinfo>

before

之前

#include "mex.h"

to have char16_t defined.

char16_t定义。

#7

0  

This post might help: http://www.seaandsailor.com/matlab-xcode6.html

这篇文章可能会帮助你:http://www.seaandsailor.com/matlab-xcode6.html。

It was easier than I thought. Just replace all 10.x with your OS X version and add -Dchar16_t=UINT16_T to CLIBS in mexopts.sh file.

这比我想象的要容易。只是替换所有10。使用您的OS x版本，并将-Dchar16_t=UINT16_T添加到mexopts中的CLIBS。sh文件。

It worked on OS X 10.9 Mavericks with Xcode 6 installed.

它使用Xcode 6安装了OS X 10.9 Mavericks。

#1

21  

By default, the upgraded Clang doesn't set char16_t, which is required by MATLAB.

默认情况下，升级的Clang不会设置char16_t，这是MATLAB所需要的。

Quick fix

This works for C or C++ code but needs to be done on each mex command line.

这适用于C或c++代码，但需要在每个mex命令行上执行。

>> mex -Dchar16_t=uint16_t ...

Other solutions below put this definition into the mex configuration or enable C++11.

下面的其他解决方案将此定义放入到mex配置中，或者启用c++ 11。

Permanent solution

Options:

选项:

  • Add -std=c++11 to CXXFLAGS in your mex configuration file AND compile .cpp files instead of .c. The mex config file is mexopts.sh (pre-R2014a) or the .xml file indicated by mex -setup (R2014a+). This is what worked for OP, but the next option works too. Be sure to edit the active/installed config, not the system-wide reference. Try the next solution if you can't tell.
  • 在您的mex配置文件中添加-std=c++11到CXXFLAGS并编译.cpp文件，而不是.c。mex配置文件是mex。sh (pre-R2014a)或mex -setup (R2014a+)指示的.xml文件。这就是OP的作用，但是下一个选项也可以。一定要编辑活动/安装的配置，而不是系统范围的引用。如果你不知道，可以尝试下一个解决方案。
  • Use a #define or typedef to create char16_t before including mex.h (see "other workaround" below).
  • 使用#define或typedef创建char16_t，包括mex。h(参见下面的“其他工作”)。
  • In some future version of MATLAB, this will have been fixed. Re-run mex -setup to have MATLAB reconfigure it for you and it works. As of R2014a, this doesn't do the trick.
  • 在一些未来的MATLAB版本中，这将是固定的。重新运行mex -设置，让MATLAB为您重新配置它，它工作。在R2014a中，这并没有起到什么作用。
  • As a last resort, you can always modify the MATLAB installation, hacking MATLAB's tmwtypes.h as Dennis suggests, but I strongly suggest NOT modifying the MATLAB installation.
  • 作为最后的手段，您可以随时修改MATLAB的安装，破解MATLAB的tmwtypes。正如Dennis所建议的，但我强烈建议不要修改MATLAB的安装。

Note: If you are using C and cannot or don't want to change to C++, follow the solution in this other answer, OR see the alternative workaround below.

注意:如果您正在使用C，并且不能或不希望更改为c++，请按照这个其他答案的解决方案，或者在下面找到替代方法。

The other workaround

另一个解决方案

If for some reason you are not able to enable the C++11 standard, you can use the preprocessor to define char16_t. Either put #define char16_t uint16_t before #include "mex.h", or set it with the compiler command line:

如果由于某种原因您不能启用c++ 11标准，您可以使用预处理器来定义char16_t。要么将#define char16_t uint16_t放在#include“mex”之前。，或者用编译器命令行设置:

-Dchar16_t=uint16_t

Alternatively, use a typedef, again before including mex.h:

另外，在使用typedef之前，还需要使用typedef。

typedef uint16_t char16_t;

If these solutions don't work, try changing uint16_t to UINT16_T. Further yet, others have reported that simply including uchar.h brings in the type, but others don't have that header.

如果这些解决方案不起作用，请尝试将uint16_t更改为uint16_t。此外，还有些人报告说，仅仅包括uchar。h带来了类型，但是其他的没有那个标题。

#2

8  

I experienced the same error, also directly after upgrading to Xcode 5.1.

在升级到Xcode 5.1后，我也经历了同样的错误。

The relevant lines (818-824) in the file tmwtypes.h, which causes the error, are:

文件tmwtypes中的相关行(818-824)。h，导致错误的是:

#if defined(__STDC_UTF_16__) || (defined(_HAS_CHAR16_T_LANGUAGE_SUPPORT) && _HAS_CHAR16_T_LANGUAGE_SUPPORT)
typedef char16_t CHAR16_T;
#elif defined(_MSC_VER)
typedef wchar_t CHAR16_T;
#else
typedef UINT16_T CHAR16_T;
#endif

A solution is to simply change the line

一个解决办法就是简单地改变路线。

typedef char16_t CHAR16_T;

into

成

typedef UINT16_T CHAR16_T;

A must admit that I don't know if this affects any function or behaviour of mex files but at least I'm able to compile my c files again using mex.

必须承认，我不知道这是否会影响到mex文件的任何功能或行为，但至少我能够再次使用mex来编译我的c文件。

#3

2  

Please see other answers if this method doesn't work.

如果这个方法无效，请查看其他的答案。

I upgraded my gcc/g++ compilers using homebrew to version 4.8 --> gcc-4.8 and g++-4.8.

我使用homebrew升级了我的gcc/g++编译器，版本为4.8——> gcc-4.8和g++-4.8。

After that I changed the following lines in the mexopts.sh file:

在那之后，我修改了梅克斯的下面几行。sh文件:

CXXFLAGS="-fno-common -fexceptions -arch $ARCHS -isysroot $MW_SDKROOT -mmacosx-version-min=$MACOSX_DEPLOYMENT_TARGET -std=c++11"

In my mexopts.sh, this is line 150. I only added the -std=c++11 flag which is what I guess chappjc meant.

在我mexopts。sh，这是第150行。我只添加了-std=c++11标志，这是我猜的chappjc的意思。

EDIT: This is covered in the update by chappjc!

编辑:这是由chappjc更新的!

#4

2  

I just add my own experiment (C++ only). The

我只是添加了我自己的实验(只有c++)。的

#define char16_t uint16_t

was causing some problem in the other parts of the mex file. In fact, subsequently to my mex file, char16_t was properly defined. By tracking the chain of includes, the proper type char16_t is set in a file named __config :

在mex文件的其他部分造成了一些问题。事实上，后来在我的mex文件中，char16_t被正确定义。通过跟踪包含的链，在一个名为__config的文件中设置了合适的类型char16_t:

typedef __char16_t char16_t;

which is also the first file included from <algorithm>. So the hack consists in including algorithm before mex.h.

这也是 <算法> 中包含的第一个文件。因此，黑客攻击包括在墨西哥之前的算法。 

#include <algorithm>
#include "mex.h"

and the proper settings are performed, still in a multiplatform manner and without changing anything in the build configuration.

正确的设置是在一个多平台的方式下执行的，并且不会改变构建配置中的任何内容。

#5

1  

Include uchar.h before including mex.h...works fine. Also, the answer above (adding -std=c++11) only works for c++, not c.

包括uchar。包括前h mex.h……工作很好。同样，上面的答案(添加-std=c++11)只适用于c++，而不是c。

#include <uchar.h>
#include "mex.h"

#6

0  

As part of XCode 5.1.1 char16_t is defined in __config, which is called from typeinfo.

XCode 5.1.1 char16_t的一部分在__config中定义，它是从typeinfo调用的。

You can add

您可以添加

#include <typeinfo>

before

之前

#include "mex.h"

to have char16_t defined.

char16_t定义。

#7

0  

This post might help: http://www.seaandsailor.com/matlab-xcode6.html

这篇文章可能会帮助你:http://www.seaandsailor.com/matlab-xcode6.html。

It was easier than I thought. Just replace all 10.x with your OS X version and add -Dchar16_t=UINT16_T to CLIBS in mexopts.sh file.

这比我想象的要容易。只是替换所有10。使用您的OS x版本，并将-Dchar16_t=UINT16_T添加到mexopts中的CLIBS。sh文件。

It worked on OS X 10.9 Mavericks with Xcode 6 installed.

它使用Xcode 6安装了OS X 10.9 Mavericks。

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