Re: abs_index

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• Subject: Re: abs_index
• From: David Jones <drj@...>
• Date: 2004年9月29日 14:28:55 +0100

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On Sep 28, 2004, at 21:07, Roberto Ierusalimschy wrote:

 #define abs_index(L, i) \
	((i) > 0 || (i) <= LUA_REGISTRYINDEX ? (i) : \
	lua_gettop(L) + (i) + 1)
 How about including it into the lauxlib.h or maybe lua.h?

The problem is that it uses `i' several times. For a generic,
"official" macro, this is not too polite.

How about a function then? The functionality is useful. I agree that you wouldn't want to bless macros like this.

David Jones

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• Follow-Ups:
  • Re: abs_index, Edgar Toernig

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  • Re: abs_index, Roberto Ierusalimschy

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