From: Florian Grafenberg (florian-grafenberg_at_[hidden])
Date: 2004-08-04 09:41:58
I don't really understand, MSVC also returns human readable strings from
type_info::name(), this string is then parsed by a boost::spirit parser
and is split up to have the ability to mangle it correctly. But as I
said I have problems in mangling template parameters, I don't get the
algorithm which is used to mangle that. Maybe someday I have much
inspiration and get behind the scheme ;-) . (the corrosponding symbol
for std::string is
don't know where the 2 comes from...)
What I meant to say is that the type_info string does not always
represent the type you've given in typeid(...), e.g. typeid(int const
&).name() returns "int", which is wrong (typeid(int const *) instead
returns "int *", somewhat strange).
The loader currently only works for MSVC and WIN32, but if gcc returns
mangled names from typeid the loading should be much easier to implement
for gcc compilers.
>>I developed a fairly simple prototype of a dll loader which mangles
>>functions names automatically. But there are limitiations: you cannot
>>call function which have template class parameters or return value, e.g.
>>void test(std::string const &str) will not work. I do not get the
>>mangling scheme used to decorate such a type, maybe someone knows a good
>>source where I can look that up?!
>>For class mangling I use the string returned by type_info::name(), but
>>that seems very hacky. Microsoft Visual C++ does not always return
>>correct strings (e.g. typeid(int &).name() returns "int").
>Actually I think more compilers return "human readable" names from this that
>return mangled names - gcc is the only compiler I know of that does this.
>And of course nearly every C++ compiler uses it's own incompatible name
>mangling scheme as well...
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