[mercury-users] foreign_decl vs. foreign_code

[Tyson Dowd]

On 12-Feb-2002, Michael Day <mikeday at bigpond.net.au> wrote:
> 
> Hi,
> 
> I have a module which declares a global variable used by foreign_procs 
> later on. When compiling the module in asm_fast.gc grade, it doesn't 
> declare the variable early enough unless it is placed in a foreign_decl. 
> When compiling in hlc.gc grade this leads to duplicate declarations unless 
> the variable is placed in foreign_code.
> 
> It seems that foreign_code is the correct place, so does this count as a 
> bug for the asm_fast.gc case?

You can put #ifdefs around it to make sure it doesn't get defined multiple
times.

I believe I argued that this (or something similar) was a bug some time
ago, and lost.

> (I am using mercury-rotd-2002-02-07 and compiling with transitive 
> intermodule optimisation enabled).
> 
> Michael
> 
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-- 
       Tyson Dowd           # 
                            #  Surreal humour isn't everyone's cup of fur.
     trd at cs.mu.oz.au        # 
http://www.cs.mu.oz.au/~trd #
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