Avoiding name mangling in Qt dll
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Hi All
I have created a -QT- Qt Library.
But when i try to use that dll I see the names of all the functions in dll are name mangled.How to avoid this?
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first of all, which platform and which compiler tool chain do you use?
C++ has no definitions, how names are exported. If you want to export C style functions, you have to mark this section as C
@
extern "C"
{
// my C-functions to export
}
@
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Hi
below is my example code
@class Temp
{
void fun1();
void fun2();
};@My above code is developed as -QT- Qt Library.
but when I try to use extern "C" for each function it gives me error.
Is there any keyword in QT which is equivalent to extern "C".
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extern "C" only works for functions, not for class members. Class members will always be mangled names.
Why do you need that?
and you did not answer my first question:
bq. first of all, which platform and which compiler tool chain do you use?
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Hi
I am using Visual studio 2010.
I want to load my dll dynamically in client application.
And use function pointers to call functions from the class.So wat is the solution for class members to avoid name mangling.
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There is no. You can't load a dll dynamically and call class members idrectly, this is not possible. If you want to use classes, use a creator design pattern with interfaces or use early binding.
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Name mangling is part of the C++ ABI you cannot disable it. You'll need to wrap the management of your C++ objects in plain C functions and be sure to mark those functions as extern "C" as Gerolf said.
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... and you cannot use simple functions pointers to "call methods on objects":http://www.parashift.com/c++-faq-lite/pointers-to-members.html.
