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Signed overflow optimization hazards in the kernelSigned overflow optimization hazards in the kernelPosted Aug 23, 2012 9:54 UTC (Thu) by georgm (guest, #19574)Parent article: Signed overflow optimization hazards in the kernel
A question:
What is the reason to write "if((a-b) < 0) ..." instead of just "if(a<b)"?
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Signed overflow optimization hazards in the kernel Posted Aug 23, 2012 10:28 UTC (Thu) by georgm (guest, #19574) [Link]
The question concerns signed values, where wraps are not common. Unsigned benefit is clear.
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