[mercury-users] foreign_decl vs. foreign_code

[Zoltan Somogyi]

On 12-Feb-2002, Michael Day <mikeday at bigpond.net.au> wrote:
> Should I have
> put something like "extern myInt g;" in the foreign_decl?

Short answer: put what you would put into a .h file into a foreign_decl,
and what you would put into a .c file into foreign_code. (U of M reference:
remember the rules I taught in 252.) In this case that requires a declaration
for the variable that is separate from its definition.

Zoltan.
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