[MLton-devel] runtime convention

[Matthew Fluet]

Is there a standard convention for dealing with an ML function that takes
a string option as a veneer for a runtime C/Posix function that takes a
possibly NULL char*?  This would seem to be a common C idiom, but I don't
recall running across an example of this when I was working on basis-2002.

The NetServDB.getBy{Name,Port} functions are like this.  For now, I do a
case on the string option in ML and dispatch to one of two _ffi functions,
one that takes a string and the other that has the NULL.  (See
runtime/basis/Net/NetServDB.c).



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