contracts for external functions?

Trass3r un at known.com
Mon Aug 23 13:42:16 PDT 2010


The Matlab C headers provide some kind of hand-crafted contracts by  
defining extra functions with suffix "_d" that check all the arguments and  
then detouring the calls to the original functions via the preprocessor  
(#define foo foo_d)

Of course I could do it the same way, but wouldn't it be better to add  
this case to D's contract programming similar to interface contracts?

extern(C) int foo(int i)
   in { assert(i > 7); }
   out (result) { assert(result & 1); }


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