Re: extern "C"
Compiler/Linker will error if linkage specifications don't match.
Drew
"George" <George@discussions.microsoft.com> wrote in message
news:D8810866-D9BC-4B78-AF05-BE63C777410F@microsoft.com...
Thanks for your advice, Ben!
BTW: to make it safe, we should add extern "C" to both declaration and
definition, right?
regards,
George
"Ben Voigt [C++ MVP]" wrote:
Tim Roberts wrote:
George <George@discussions.microsoft.com> wrote:
Just to confirm what is the most correct way beyond a just working
function.
1.
We need to add extern "C" to both variable/function
definition/declaration? Or only need to add to the variable/function
declaration?
2.
How about extern? Declaration only or both declaration and
definition are required?
BTW: previously, I only add to declaration, but after reading more
and more code which add to both declaration and definition, I come
to here to ask this question.
extern "C" is only required for the declaration.
Do you understand that extern "C" is only used for C++ that you need
to call from a C function?
extern "C" should also be used with dllexport, even if the caller is C++,
to
get rid of the (compiler version dependent) name mangling.
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