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* no speed advantage of GR_M_TWOPI: every compiler pre-computes
constants, so that (2 * GR_M_PI) is just as fast
* rest of constants not even used
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This update is focused on improving the throughput of the Costas
loop, however some changes are more global performance enhancements
as this PR has evolved. Updates include an ENABLE_NATIVE added to
CMake, which is off by default but enables native compiling (including
FMA support) if desired; sincos was inlined in sincos.h and sincos.cc
was removed from the appropriate CMake to improve sincos speed, some
constants were added to math.h, inlined functions in costas loop and
nco.h, used switch instead of function pointer (much faster), and
used fast complex multiply to get around all the range checking in
the standard complex.h complex multiply function on all builds.
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Found via `codespell -q 3 -L ans,sinc,hist,ist,ith,uint,fo -S ./volk`
Fix typos in gnuradio-runtime/
Fix typos in gr-digital/
Fix typos in gr-qtgui/
Fix typos in gr-channels/
Fix typos in grc/
Fix typos gr-filter/
Fix typos in gr-uhd/
Fix typos in gr-blocks/
Fix typos in gr-fec/
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We should be more careful about letting these into the code in the future. In emacs, we can use (add-hook 'before-save-hook 'delete-trailing-whitespace).
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