On 2008 Aug 31, at 10:20, Ganesh Sittampalam wrote:
On Sat, 30 Aug 2008, Adrian Hey wrote:
But then again, I'm sure that some that will be adamant that any way
of making "global variables" is a hack. But they'll still be happy
to go on using file IO, sockets etc regardless, blissfully unaware
of the hacks they are dependent on :-)
I'm not sure of precisely what you mean here, but stdin, stdout and
stderr are things provided by the OS to a process. That's what
defines them as having process scope, not something the Haskell
language or RTS does.
But their representations in Haskell must have the same scope and are
therefore de facto global variables.
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED]
electrical and computer engineering, carnegie mellon university KF8NH
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