The complaint states:
It still won't let you unwield a cursed secondary weapon while
two-weaponing, even though you can drop such a weapon without problem.
You aren't supposed to be able to two-weapon
with a cursed alternate weapon at all. It appears that there are some
checks to prevent twoweaponing if uswapwep is cursed when you try.
This patch ensures that two-weaping stops if uswapwep gets cursed
while two-weaponing. I think this means the 'A' command will never
encounter the situation now in the complaint now.
The rules in wield.c state
The secondary weapon (uswapwep):
1. Is filled by the x command, which swaps this slot
with the main weapon. If the "pushweapon" option is set,
the w command will also store the old weapon in the
secondary slot.
2. Can be field with anything that will fit in the main weapon
slot; that is, any type of item.
3. Is usually NOT considered to be carried in the hands.
That would force too many checks among the main weapon,
second weapon, shield, gloves, and rings; and it would
further be complicated by bimanual weapons. A special
exception is made for two-weapon combat.
4. Is used as the second weapon for two-weapon combat, and as
a convenience to swap with the main weapon.
5. Never conveys intrinsics.
6. Cursed items never weld (see number 3 for reasons), but they also
prevent two-weapon combat.
> I'm working on a Nethack port, and one of the header files a
> library uses has a structure with a member named "red". Since
> includes/decl.h #defines red to something, this totally loses.
>
> Attached is a patch which fixes the color defines.
Fix some inconsistencies in armor handling. The 'T' command
wouldn't let you take off a suit or shirt if you were wielding a
cursed two-handed weapon, which makes sense; however, the 'A'
command neglected to impose the same restriction. Also, the 'W'
command had some code intended to prevent you from donning a suit
or shirt while wielding such a cursed weapon, but it didn't work.
This patch fixes the 'A' command's checks for whether an
item can be removed and it makes the 'T' and 'R' commands use the
same code as 'A' instead of maintaining multiple sets of checks.
It also fixes the trivial 'W' problem and attempts to prevent the
sequence of 1) get interrupted while removing a set of equipment
including suit and/or shirt; 2) wield a cursed two-handed weapon
or have already wielded one become cursed; 3) resume removing
armor via 'A' but I haven't tried to trigger that situation to
confirm the bug or this fix.
Eliminate or at least reduce one of the idiosyncratic differences
between enchant weapon and enchant armor: make reading enchant weapon
discover that scroll if the effect is adequately discernible, instead
of always asking the player to supply a name for it. If your weapon
is identified and its +/- enchantment value goes up, or you're wielding
a worm tooth and it transforms into a crysknife, you learn the scroll.
However for the negative effect of a cursed one, that's only applicable
when the scroll is already known to be cursed.