Error C2894 Templates Cannot Be Declared

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Templates Cannot Be Declared To Have

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Extern "c"

programmers, just like you, helping each other. Join them; it only takes a minute: Sign up error C2894: templates cannot be declared to have 'C' linkage up vote 2 down vote favorite I got error C2894: templates cannot be declared to have 'C' linkage when i try to compile my C++ project. all error point me to vc++ files 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

here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just http://stackoverflow.com/questions/12369632/error-c2894-templates-cannot-be-declared-to-have-c-linkage like you, helping each other. Join them; it only takes a minute: Sign up Why can't templates be within extern “C” blocks? up vote 13 down vote favorite 1 This is a follow-up question to an answer to Is it possible to typedef a pointer-to-extern-“C”-function type within a template? This code fails to compile with g++, http://stackoverflow.com/questions/4877705/why-cant-templates-be-within-extern-c-blocks Visual C/C++, and Comeau C/C++ with basically the same error message: #include extern "C" { static int do_stuff(int) { return 3; } template struct test { static void foo(return_t_ (*)(arg1_t_)) { } }; } int main() { test::foo(&do_stuff); return EXIT_SUCCESS; } g++ says "error: template with C linkage", Visual C/C++ emits compiler error C2894, and Comeau C/C++ says "error: this declaration may not have extern "C" linkage". The thing is, all are happy with: #include extern "C" { static int do_stuff(int) { return 3; } struct test { static void foo(int (*)(int)) { } }; } int main() { test::foo(&do_stuff); return EXIT_SUCCESS; } Section 7.5, Linkage specifications, of the C++ Standard states: A C language linkage is ignored for the names of class members and the member function type of class member functions. And it even gives the example: extern "C" { class X { void mf(); // the name of the function mf and the member // function's ty

for Help Receive Real-Time Help Create a Freelance Project Hire for a Full Time Job Ways to Get Help Ask a Question Ask for Help Receive Real-Time Help Create https://www.experts-exchange.com/questions/21316358/templates-cannot-be-declared-to-have-'C'-linkage.html a Freelance Project Hire for a Full Time Job Ways to Get Help Expand Search Submit Close Search Login Join Today Products BackProducts Gigs Live Careers Vendor Services Groups http://seclists.org/tcpdump/2007/q3/207 Website Testing Store Headlines Experts Exchange > Questions > templates cannot be declared to have 'C' linkage Want to Advertise Here? Solved templates cannot be declared to have 'C' templates cannot linkage Posted on 2005-02-15 C++ 1 Verified Solution 7 Comments 3,580 Views Last Modified: 2012-06-27 I have an EXE in C,i have renamed all the files to C++,now if i compile it in a machine which has MSDEV6.0 it compiles perfectly,but in case iry to compile it with a batch file from a fresh machine it throws the following templates cannot be error,if any one has come across this error and can help me it would be great thanks in advance T:\MSVC60\vc98\Include\comutil.h(101) : error C2526: '+' : C linkage function cannot return C++ class '_bstr_t ' T:\MSVC60\vc98\Include\comutil.h(72) : see declaration of '_bstr_t' T:\MSVC60\vc98\Include\comutil.h(102) : error C2526: '+' : C linkage function cannot return C++ class '_bstr_t ' T:\MSVC60\vc98\Include\comutil.h(72) : see declaration of '_bstr_t' T:\MSVC60\vc98\Include\comutil.h(102) : error C2733: second C linkage of overloaded function '+' not allowed T:\MSVC60\vc98\Include\comutil.h(102) : see declaration of '+' T:\MSVC60\vc98\Include\comutil.h(328) : warning C4190: '' has C-linkage specified, but returns UDT '_ bstr_t' which is incompatible with C T:\MSVC60\vc98\Include\comutil.h(72) : see declaration of '_bstr_t' T:\MSVC60\vc98\Include\comutil.h(328) : error C2556: 'class _bstr_t __cdecl operator +(const char *,const clas s _bstr_t &)' : overloaded function differs only by return type from 'void __cdecl operator +(const char *,con st class _bstr_t &)' T:\MSVC60\vc98\Include\comutil.h(101) : see declaration of '+' T:\MSVC60\vc98\Include\comutil.h(328) : error C2371: '+' : redefinition; different basic t

Packet crafters More Site News Advertising About/Contact Sponsors: tcpdump mailing list archives By Date By Thread Compilation Error - C2894: templates cannot be declared to have 'C' linkage From: "Varuna De Silva" Date: Thu, 20 Sep 2007 12:19:39 +0530 Hi all, I tried to compile a program which includes pcap-int.h, in Visual Studio 2005. and then I get this above error message. As was proposed in a program. This happens because #ifdef __cplusplus extern "*C*" { #endif ... #include ... #ifdef __cplusplus } #endif I tried moving the #include outside of the extern "*C*" and the compilation was successful. Would this be alright Rgrds Xavier - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe. By Date By Thread Current thread: Compilation Error - C2894: templates cannot be declared to have 'C' linkage Varuna De Silva (Sep 19) Re: Compilation Error - C2894: templates cannot be declared to have 'C' linkage Guy Harris (Sep 20) Re: Compilation Error - C2894: templates cannot be declared to have 'C' linkage Varuna De Silva (Sep 24) Re: Compilation Error - C2894: templates cannot be declared to have 'C' linkage Guy Harris (Sep 24) [ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]