Hi,
I am newbie in Haskell and do not understand why the interpreted mode
differs from the compiled program.
I run this code
main = do
putStr "line1"
x<-getLine
putStr "line2"
y<-getLine
return (x++y)
either under runhugs or runghc or in a console under ghci and works
properly, that is, first displays "line1" and then prompts for the
corresponding inputs through the keyboard, and so on. However, if I
compile the code with the command line
ghc --make Main.hs -o main
and launch the compiled program main, then at first prompts for the
input lines through the keyboard and then displays the strings "line1"
"line2".
I have read in the tutorials that the command "do" implies an ordered
execution and this only occurs in interpreted mode.
Using the monadic notation >> , >>= occurs the same unordered behavior.
¿How can I avoid the unordered execution of this code in a compiled
program?
Thanks in advance.
jepalomar
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