Source code generation using Python
Jorgen Grahn
grahn+nntp at snipabacken.se
Mon Dec 8 16:32:31 EST 2008
On Sat, 6 Dec 2008 13:47:26 -0800 (PST), ats <asteinarson at gmail.com> wrote:
> Hello,
>
> This is my first posting to a Python group (and I'm starting with
> Python seriously only now) , so bear with me if I make some mistakes.
>
> I want to generate 3 different versions of a C++ source code,
> basically injecting different flavours of inline assembler depending
> on target compiler/CPU.
>
> Code generation should be integrated into a 'master source file' which
> is the processed and generates the right code for GCC / MSVC or other
> cases. Something like:
>
> int FastAdd( int t1, int t2 ){
> int r;
> ##if USE_INLINE_ASM
> #ARG( eax, "t1")
> #ARG( ebx, "t2")
> #ASM( "add", ebx, eax )
> #RES( eax, "r" )
> ##else
> r = t1+t2;
> ##endif
> return r;
> }
You didn't say explicitly, so I have to ask: is there a reason you
cannot use the C++ preprocessor? It does exactly what you describe,
and would be the least surprising solution to the readers.
/Jorgen
--
// Jorgen Grahn <grahn@ Ph'nglui mglw'nafh Cthulhu
\X/ snipabacken.se> R'lyeh wgah'nagl fhtagn!
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