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On 2015-08-22, Alan McKinnon <alan.mckinnon@×××××.com> wrote: |
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[regarding floating point comparison.] |
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> A good way to demonstrate just how problematic floats can be is to point |
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> out that floats are banned in the linux kernel for exactly this reason. |
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> Integers only. |
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Really? The reason that I was given when I wanted to use FP in a |
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kernel module is that handing context switching for FP hardware is |
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much simpler/faster if you assume no FP operations in the kernel. |
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Nobody ever mentioned the comparison "problem" or other typical FP |
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computation stumbles -- the decision was supposedly based on the |
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complications of handing FP hardware context switches. |
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-- |
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Grant |
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