"Simon Marlow" <simonmar@microsoft.com> wrote,
qrczak@knm.org.pl (Marcin 'Qrczak' Kowalczyk) wrote,
Mon, 19 Mar 2001 11:04:43 -0700, Alastair Reid <reid@cs.utah.edu> pisze:
Should these functions be available through the standard FFI? IMHO they should. [..] I guess, you could a (maybe inefficient) version of unsafePerformIO using the FFI functionality anyway. This gives us a default implementation, so I thing, we should include it. I am not so sure about unsafeInterleaveIO.
I'm not sure about including these functions in Foreign. Their location should be standardised, sure: but that's something to be discussed as part of the new library proposal. I don't feel they belong in Foreign.
I guess, the point is that FFI routines often need unsafePerformIO - for example, to implement the marshalling for pure external functions. Without a standard way to get at unsafePerformIO, such code would still rely on non-standard features, which goers against the aim of standardising the rest of the FFI. Manuel