On Thu, 08 Jan 2009 06:00:35 +0300, dsimcha <[email protected]> wrote:

If someone wants to call C code from a pure D function, how can this be done?
 How does one tell DMD that the C function is, in fact, pure?

Purite can't be checked on extern functions. It these cases DMD should rely on 
programmer.
For example, you could define strstr as follows:

extern(C) pure invariant(char)* strstr(invariant(char)* str1, invariant(char)* 
str2);

This way it is truly pure.

I wonder what results you may get using "extern(C) pure int rand();" though. :p

Reply via email to