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Re: Difference between SEL and const char* when sending a message?

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Re: Difference between SEL and const char* when sending a message?

Subject: Re: Difference between SEL and const char* when sending a message?
From: Marcel Weiher <email@hidden>
Date: Wed, 8 Apr 2009 07:33:02 -0700


On Apr 8, 2009, at 7:27 , Michael Ash wrote:

The runtime relies on this property for all kinds of things. By
passing in a naked C string, you're bypassing the uniquing mechanism,
and could easily end up with a string which has the same *contents*
but is not at the same address. This could break all sorts of things


s/could/will/g

"All sorts of things" specifically includes objc_msgSend(), which only uses the address, not whatever is located at the address...

Marcel

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References:  
  >Difference between SEL and const char* when sending a message? (From: Daqi Pei <email@hidden>)
  >Re: Difference between SEL and const char* when sending a message? (From: Michael Ash <email@hidden>)




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