[Freeciv-Dev] Re: (PR#7075) break and continue in iterators
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[Freeciv-Dev] Re: (PR#7075) break and continue in iterators |
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"Arnstein Lindgard" <a-l@xxxxxxx> |
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Fri, 9 Jan 2004 09:30:10 -0800 |
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rt@xxxxxxxxxxx |
<URL: http://rt.freeciv.org/Ticket/Display.html?id=7075 >
Add a warning to the doc which lead me to believe "break" is safe in
all macros. It's the only doc file that mentions "break".
Arnstein
--- doc/HACKING Fri Jan 9 09:14:55 2004
+++ doc/HACKING.new Fri Jan 9 18:23:06 2004
@@ -120,7 +120,8 @@
There are other operations than iterating that can be performed on a list;
inserting, deleting, sorting etc. See common/speclist.h
Note that the way the *_list_iterate macro is implemented means you can use
-"continue" and "break" in the usual manner.
+"continue" and "break" in the usual manner. Other macros may still be using
+double loops, and in those cases "break" can produce unpredictable results.
One thing you should keep in the back of your mind: Say you are iterating
through a unit list, and then somewhere inside the iteration decide to
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