错误C2894:模板不能声明为具有“C”链接
错误C2894:模板不能声明为具有“C”链接
提问于 2012-09-11 12:23:39
我得到了
error C2894: templates cannot be declared to have 'C' linkage当我试图编译我的C++项目时。
所有错误都指向vc++文件
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(32): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(120): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(133): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(256): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(279): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(375): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(474): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(486): error C2039: 'memcmp' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(486): error C3861: 'memcmp': identifier not found
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(491): error C2039: 'strlen' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(491): error C3861: 'strlen': identifier not found
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(511): error C2039: 'memchr' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(511): error C3861: 'memchr': identifier not found
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(522): error C2039: 'memset' : is not a member of '`global namespace''
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(522): error C3861: 'memset': identifier not found
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(568): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(571): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(574): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(577): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(580): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(583): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(586): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(589): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(592): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(596): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(600): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(604): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(608): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(611): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(614): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(617): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(622): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(625): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\iosfwd(628): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\limits(80): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\limits(133): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\limits(139): error C2894: templates cannot be declared to have 'C' linkage
1>c:\program files\microsoft visual studio 10.0\vc\include\limits(139): fatal error C1003: error count exceeds 100; stopping compilation这些错误是什么，我是如何解决的。“这些错误突然出现，而在我从未看到这些错误之前。
在我正在进行的项目中，我从不使用extern C
谢谢
回答 4
Stack Overflow用户
发布于 2014-03-28 13:51:29
如果将头文件包含在extern "C"命令中，则会发生此错误。
extern "C"
{
#include "Header.h"
}只需将#include "cs.h"包含在extern c之外就可以了。
#include "Header.h"
extern "C"
{
//code
}Stack Overflow用户
发布于 2012-10-16 09:32:57
很难在不显示源代码的情况下为您提供任何帮助，但是关于MSDN错误#2894和其他门户网站的信息是非常直接的：
// C2894.cpp
extern "C" {
template<class T> class stack {}; // C2894 fail
template<class T> void f(const T &aT) {} // C2894
}也许您的文件名为.c而不是.cpp，或者切换了一些编译标志。
Stack Overflow用户
发布于 2017-04-27 05:40:09
如果你写了这个..。
extern "C"
{
#include "Header.h"
}也不愿写成
extern "C++"
{
#include "Header.h"
}当您尝试在C++中引用C函数时，它将通过错误避免将其引用到C++，以便您可以在.CXX或.Cpp函数中引用它
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/12369632
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