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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 198.12-5.2%3:59 PM EST
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To: Joe NYC who wrote (64998)12/5/2001 6:33:57 PM
From: Neil BoothRead Replies (1) of 275872
 
I don't know how the case statement is compiled to assembler.

GCC orders the cases in a binary tree. It then creates a
set of if / then / else branches to get to the right conclusion as efficiently as possible.

Further, any subsets of the tree that are dense get done by
a jump table. Thus a single case statement can be translated into 0, 1 or many jump tables. GCC is pretty good at that kind of thing; other compilers often not as good.

Neil.
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