base.hh File Reference

#include <errno.h>
#include <math.h>
#include <assert.h>
#include <vector>
#include "bit/exceptions.hh"

Go to the source code of this file.

Namespaces
namespace	bit
Typedefs
typedef unsigned int	bit::u32
	Unsigned 32-bit type.
typedef signed int	bit::s32
	Signed 32-bit type.
typedef unsigned long long	bit::u64
	Unsigned 64-bit type.
typedef unsigned long long	bit::s64
	Signed 64-bit type.
Functions
u64	bit::bytes_required (u64 num_elems, unsigned int bits_per_elem)
	The number of 8-bit bytes required to store a number of fixed-width elements.
unsigned int	bit::highest_bit (u64 value)
	The number of highest non-zero bit.
unsigned int	bit::float2uint (float f)
	Convert float to 32-bit integer representation.
float	bit::uint2float (unsigned int i)
	Restore float from 32-bit integer representation.
float	bit::unquantize_float (u32 i, double step)
	Restore a quantized float value using linear quantization centered around zero.
u32	bit::quantize_float (float f, double step)
	Quantize float value using linear quantization centered around zero.
Variables
static const unsigned int	bit::max_bits_per_value = 32
	Maximum value width in bits.
static const u32	bit::max_u32 = (u32)-1
	Maximum value of u64 type.
static const s32	bit::max_s32 = 0x7fffffff
	Maximum value of s32 type.
static const u64	bit::max_u64 = (u64)-1
	Maximum value of u64 type.
static const unsigned int	bit::one_masks []
	Bit-masks containin n lowest bits set to one.
static const int	bit::shift [] = { 0, 8, 16, 24, 32 }
	Bit-shifts for byte positions.

---