Using "C" modifier to prevent C++ name mangling for DLL function??

[perfb]

have a C++ DLL that needs to be called be external non-C app that uses
C interface, but cant figure out how to export C++ DLL functions
without name mangling.

if I declare

_declspec(dllexport) void "C" foo(void)

then it compiles ok, but I dont see any foo exported when dumpbin the
dll

If I leave off the "C" then of course foo is exported but with mangled
name

tia for any tips/sarcasm

 

[Gianni Mariani]

have a C++ DLL that needs to be called be external non-C app that uses
C interface, but cant figure out how to export C++ DLL functions
without name mangling.

if I declare

_declspec(dllexport) void "C" foo(void)

then it compiles ok, but I dont see any foo exported when dumpbin the
dll

If I leave off the "C" then of course foo is exported but with mangled
name

tia for any tips/sarcasm

In standard C++ you can do this.

extern "C" {

void foo(void);

}

void foo(void) {}


- however, _declspec(dllexport) is somthing you'd be better off asking
an MS specific ng.

 

[Ian]

have a C++ DLL that needs to be called be external non-C app that uses
C interface, but cant figure out how to export C++ DLL functions
without name mangling.

if I declare

_declspec(dllexport) void "C" foo(void)

then it compiles ok, but I dont see any foo exported when dumpbin the
dll

If I leave off the "C" then of course foo is exported but with mangled
name

tia for any tips/sarcasm

You'll have better luck on a microsoft specific group.

Ian

 

[ecky-l]

which compiler do you use? If MinGW / g++, have a look at this page:
http://www.mingw.org/MinGWiki/index.php/sample DLL

Important is the lower part: compile with -no-undefined
--enable-pseudo-runtime-reloc to export all symbols. But you must not
have *any* __declspec(dllexport) declarations in your code, if you want
to do this.
Take a close look on the remarks on compiler compatibility! Virtually
it means, if your client app was compiled with a different compiler
than the one you use (e.g. you use g++, the client app was compiled
with MSVC), C++ symbols can't be imported by the client app at all. You
better use the same compiler as the people who build the client app.


Eckhard