Re: [boost] RE: Re: Formal Review: FOREACH macro

From: Giovanni P. Deretta (lordshoo_at_[hidden])
Date: 2005-05-05 11:51:51

Angus Leeming wrote:
> Hartmut Kaiser wrote:
> 
>>FYI, Wave has a special #pragma usable for bridging this gap:
>>
>>    #pragma wave system(any OS command)
>>
>>which spawns of the given command and intercepts the produced stdout
>>stream, inserting it instead of the pragma itself :-P. In C99 mode you
>>even may use it from the operator _Pragma and force a full macro
>>expansion of the inserted results:
>>
>>#define EVAL(x) x
>>EVAL(_Pragma("wave system(any OS command)"))
>>
>>Regards Hartmut
> 
> 
> Hartmut,
> 
> is that a good idea? I can imagine that running an existing executable 
> might cause untold damage to my system, but compiling a piece of source 
> code?
> 
> Doesn't it smack of C++ source code as computer virus? 
> 

Well, technically, being templates turing complete we are in trouble 
anyway ...

Sorry couldn't resist :)

--
Giovanni P. Deretta