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Re: objc_msgSend problems on x86

Subject: Re: objc_msgSend problems on x86
From: Guy English <email@hidden>
Date: Sat, 11 Feb 2006 02:30:36 -0500
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Hi Rosyna,

if (objc_msgSend(string, NSSelectorFromString(CFSTR ("isEqualToString:")), otherString))

The above code produces no error. But it does not work 100% of the time on the ICBMs. It works 100% of the time on the PPCs. Whether it works or not on the ICBMs seems to be a total crapshoot.

When you say it doesn't work does it fail given the same input strings all the time? What's in the AX register after the call fails? Are AH and AL inverted in some wacky way, as in does AH hold the correct result all the time while AL varies? What happens if you make sure AX is zeroed before the call? Oh, and if you use @"isEqualToString:" does that fix it?

Anyway - it's nutty. :)

Take care,
Guy
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References:
	>objc_msgSend problems on x86 (From: Rosyna <email@hidden>)
	>Re: objc_msgSend problems on x86 (From: Nicko van Someren <email@hidden>)
	>Re: objc_msgSend problems on x86 (From: Rosyna <email@hidden>)

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