Bugs item #2051271, was opened at 2008-08-14 13:22
Message generated for change (Comment added) made by mlkersten
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Category: Core
Group: MonetDB5 CVS Head
>Status: Closed
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Fabian (mr-meltdown)
Assigned to: Martin Kersten (mlkersten)
Summary: M5: true, false and nil unavailable in a function
Initial Comment:
# observed 14-08-2008: true, false and nil are not available in a
# function, whereas they are locally
function user.myfunc(i:int):bit;
barrier ifpart := i == 1;
return(true);
exit ifpart;
barrier ifpart := i == 2;
return(false);
exit ifpart;
barrier ifpart := i == 3;
return(nil:bit);
exit ifpart;
end user.myfunc;
#!TypeException:user.myfunc[2]:'true' may not be used before being initialized
io.print(true);
p := user.myfunc(1);
io.print(p);
io.print(false);
p := user.myfunc(2);
io.print(p);
io.print(nil:bit);
p := user.myfunc(3);
io.print(p);
# no idea what this does
p := user.myfunc(4);
io.print(p);
Added as tests/BugReports/Tests/notruefalsenil
----------------------------------------------------------------------
>Comment By: Martin Kersten (mlkersten)
Date: 2008-08-16 20:00
Message:
Logged In: YES
user_id=490798
Originator: NO
A RETURN qualifier should be used in combination with an assignment.
A function should have at least on return statement at top level,
because you can not statically ensure it will be handled deeper.
These changes have been reflected in the test and stricter parsing.
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