From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <23b1f2e6bdd7d080c9c1ce27478716d0@felloff.net>
Date: Sun, 13 Sep 2015 16:23:36 +0200
From: cinap_lenrek@felloff.net
To: 9fans@9fans.net
In-Reply-To: <9f4dd8c69f9f67abcba0a3bfc69bfcf9@brasstown.quanstro.net>
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Subject: Re: [9fans] kenc vlong <asop> double
Topicbox-Message-UUID: 6a381494-ead9-11e9-9d60-3106f5b1d025

the problem is v += d propagates the whole expression
to double. so we somehow need to convert v to double,
do the <asop> then convert back but return the double
result.

i tried (unsuccessfully) to come up with something like
this below in com64, but i dont know what i'm doing and
someone who knows kenc better can probably solve this by
deleting some code instead of adding more:

OCOMMA(
	OAS(ONAME(t, TDOUBLE), OFUNC(_v2d, ONAME(v, TVLONG))),
	OASADD(t, d),
	OCOMMA(
		OAS(ONAME(v, TVLONG), OFUNC(_d2v, ONAME(t, TDOUBLE))),
		NAME(t, TDOUBLE)))

the good news is that double and float are the only cases
where this can happen i think. and its rather silly code,
so maybe it should just give up and throw a error message.

lets see what charles thinks about this.

--
cinap