diff options
Diffstat (limited to 'libFLAC/bitmath.c')
| -rw-r--r-- | libFLAC/bitmath.c | 46 |
1 files changed, 3 insertions, 43 deletions
diff --git a/libFLAC/bitmath.c b/libFLAC/bitmath.c index 27e25f0..5b58ca9 100644 --- a/libFLAC/bitmath.c +++ b/libFLAC/bitmath.c @@ -1,5 +1,6 @@ /* libFLAC - Free Lossless Audio Codec library - * Copyright (C) 2001,2002,2003,2004,2005,2006,2007 Josh Coalson + * Copyright (C) 2001-2009 Josh Coalson + * Copyright (C) 2011-2014 Xiph.Org Foundation * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -29,52 +30,11 @@ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#if HAVE_CONFIG_H +#ifdef HAVE_CONFIG_H # include <config.h> #endif #include "private/bitmath.h" -#include "FLAC/assert.h" - -/* An example of what FLAC__bitmath_ilog2() computes: - * - * ilog2( 0) = assertion failure - * ilog2( 1) = 0 - * ilog2( 2) = 1 - * ilog2( 3) = 1 - * ilog2( 4) = 2 - * ilog2( 5) = 2 - * ilog2( 6) = 2 - * ilog2( 7) = 2 - * ilog2( 8) = 3 - * ilog2( 9) = 3 - * ilog2(10) = 3 - * ilog2(11) = 3 - * ilog2(12) = 3 - * ilog2(13) = 3 - * ilog2(14) = 3 - * ilog2(15) = 3 - * ilog2(16) = 4 - * ilog2(17) = 4 - * ilog2(18) = 4 - */ -unsigned FLAC__bitmath_ilog2(FLAC__uint32 v) -{ - unsigned l = 0; - FLAC__ASSERT(v > 0); - while(v >>= 1) - l++; - return l; -} - -unsigned FLAC__bitmath_ilog2_wide(FLAC__uint64 v) -{ - unsigned l = 0; - FLAC__ASSERT(v > 0); - while(v >>= 1) - l++; - return l; -} /* An example of what FLAC__bitmath_silog2() computes: * |