Re: [boost] Re: new compile-time dimensional analysis and unit library

From: Matthias Schabel (boost_at_[hidden])
Date: 2003-12-10 10:29:42

Cool! This makes life simpler.  BTW, just for general reference the  
call is in the abi namespace, not cxxabi :

#ifdef __GNUC__
#include "cxxabi.h"
#endif

template<class T>
void write_typeid()
{
     #ifdef __GNUC__
     // need to demangle C++ symbols
     char*       ptr = NULL;
     std::size_t len;
     int         stat;

     const std::string   mangled = typeid(T).name();

     std::cout << abi::__cxa_demangle(mangled.c_str(),ptr,&len,&stat) <<  
std::endl;
     #else
     std::cout << typeid(T).name() << std::endl;
     #endif

     std::cout << std::endl;
}

Very handy...

Matthias

>> Yeah, sorry about that one.  GCC outputs mangled typenames when you
>> use typeid(T).name(), so you need to run a utility called c++filt to
>> demangle them into something comprehensible by humans
>
> You might have a look at cxxabi::__cxa_demangle; it can do the same
> thing inside your executable.
>
> --  
> Dave Abrahams
> Boost Consulting
> www.boost-consulting.com
>
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------------------------------------------------------------------------ 
---------------------------
Matthias Schabel, Ph.D.                           	
Utah Center for Advanced Imaging Research
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