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Update _kiss_fft_guts.h

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Fix for DIVSCALAR off by 1 (#83)
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fbarchard 2022-09-19 14:07:04 -07:00 committed by GitHub
parent 8f47a67f59
commit 47e321b195
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_kiss_fft_guts.h
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@ -71,7 +71,7 @@ struct kiss_fft_state{
(m).i = sround( smul((a).r,(b).i) + smul((a).i,(b).r) ); }while(0)
# define DIVSCALAR(x,k) \
(x) = sround( smul( x, SAMP_MAX/k ) )
(x) = sround( smul( x, (SAMPPROD)(1u<<FRACBITS)/k ) )
# define C_FIXDIV(c,div) \
do { DIVSCALAR( (c).r , div); \