Subroutine cannot call itself recursively
-----------------------------------------
Key: CORE-5380
URL: http://tracker.firebirdsql.org/browse/CORE-5380
Project: Firebird Core
Issue Type: Bug
Affects Versions: 3.0.1
Environment: Firebird 3.0.1, tested on Linux Mint 18 64-bit (but I
believe this has nothing to do with OS).
Reporter: Zoran Vučenović
Sub-routines cannot use recursion.
For example this will not compile:
create or alter function factoriel(n int)
returns int
as
declare function subfactoriel(n int)
returns int
as
begin
if (n = 0) then
return 1;
else
return n * subfactoriel(n - 1); --this line cannot compile
end
begin
if (n < 0) then
return 0;
else
return subfactoriel(n);
end
As this subroutines' limitation is not mentioned in documentation (here:
http://www.firebirdsql.org/file/documentation/release_notes/html/en/3_0/rnfb30-psql-subroutines.html),
I think it is a bug.
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