On 01 August 2005 16:05, Cale Gibbard wrote:
Your problem is, as you pointed out, that readFile does lazy IO.
Although the semantics of it can be a bit confusing at times, it is
useful for applications where you have a large file which is being
consumed, and you don't want to allocate all of
I was developing a web site using haskell programs as cgi's, and I found
a strange behavior that I would like to know whether it is normal. I
have reduced the problem to the next program:
fEntrada = fich.txt
fSalida = fich.txt
creaFich :: IO()
creaFich = writeFile fEntrada me molo
main :: IO
Am Donnerstag, 28. Juli 2005 20:01 schrieb Diego y tal:
I was developing a web site using haskell programs as cgi's, and I found
a strange behavior that I would like to know whether it is normal. I
have reduced the problem to the next program:
fEntrada = fich.txt
fSalida = fich.txt
On Thu, Jul 28, 2005 at 08:01:17PM +0200, Diego y tal wrote:
I understand that this is caused by the lazyness,
No, it is caused by mixing laziness with side-effects, which happens
when you use getContents/readFile.
that doesn't evaluate the expression x - readFile fEntrada until
it's
Am Montag, 1. August 2005 22:38 schrieb Tomasz Zielonka:
On Thu, Jul 28, 2005 at 08:01:17PM +0200, Diego y tal wrote:
[...]
but.. is it normal that we have to think about this problem when
programming?
You just have to know, which functions mix laziness and side-effects
by using
