Re: [boost] sorting floats by casting to integer

On Sun, Jul 26, 2009 at 5:22 PM, Cory Nelson <phrosty@gmail.com> wrote:

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Thanks for the suggestion. I ended up passing those flags you suggested, and obtained this result: cl : Command line warning D9002 : ignoring unknown option '-march=nocona' cl : Command line warning D9002 : ignoring unknown option '-mfpmath=sse'

Those are for GCC. For VC++, you want to use /arch:SSE2.

Thanks Cory. There was no warning with that option specified, but there was also no measurable performance change. I verified that MSVC was being called with the option, and that if I misspelled the option, a warning was issued. I think that SSE is deliberately disabled in the cheap version of MSVC I bought, based upon the Microsoft documentation.