C++ demangler horrors

[H. J. Lu]

On Thu, Jun 26, 2003 at 02:48:28PM -0400, Kaveh R. Ghazi wrote:
>  > On Thu, Jun 26, 2003 at 01:08:06PM -0400, Nathanael Nerode wrote:
>  > > We want a working C++ demangler which is not dependent on libstdc++
>  > > in any way.
>  > 
>  > You have to elaborate. My demangler patch requires a C++ compiler to
>  > build, but not a C++ compiler to use. I don't see there is much
>  > drawback. Besides, it will fall back to the old demangler if there is
>  > no suitable C++ compiler.
>  > H.J.
> 
> FWIW, g++ (cc1plus) on mainline can be built with any ISO C compiler.
> I.e. you could build cc1plus in stage1 and use that to build the C++
> demangler.
> 
> As long as you don't need libstdc++ (or exceptions which also require
> the target support library) then you should be fine.  Ie. you can use
> all other C++ language features like classes, ctors/dtors etc.  If the
> C++ demangler can restrict itself to these features you should be able
> to build it in stage1 after building cc1plus.
> 
> Does this help?
> 

It uses <vector> and <string>.


H.J.