GNU Octave  8.1.0
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
Classes | Macros | Functions
bitfcns.cc File Reference
#include <limits>
#include "str-vec.h"
#include "quit.h"
#include "defun.h"
#include "error.h"
#include "ov.h"
#include "ov-uint64.h"
#include "ov-uint32.h"
#include "ov-uint16.h"
#include "ov-uint8.h"
#include "ov-int64.h"
#include "ov-int32.h"
#include "ov-int16.h"
#include "ov-int8.h"
#include "ov-float.h"
#include "ov-scalar.h"
#include "ov-re-mat.h"
#include "ov-bool.h"
#include <functional>
Include dependency graph for bitfcns.cc:

Go to the source code of this file.

Classes

struct  bit_and< T >
 
struct  bit_or< T >
 
struct  bit_xor< T >
 

Macros

#define DO_BITSHIFT(T)
 
#define DO_SBITSHIFT(T, N)
 
#define DO_UBITSHIFT(T, N)
 

Functions

octave_value bitop (const std::string &fname, const octave_value_list &args)
 
static int bitop_arg_is_bool (const octave_value &arg)
 
static int bitop_arg_is_float (const octave_value &arg)
 
static int bitop_arg_is_int (const octave_value &arg)
 
template<typename T >
octave_value bitopx (const std::string &fname, const Array< T > &x, const Array< T > &y)
 
template<typename OP , typename T >
octave_value bitopxx (const OP &op, const std::string &fname, const Array< T > &x, const Array< T > &y)
 
static int64_t bitshift (double a, int n, int64_t mask)
 
static int64_t bitshift (float a, int n, int64_t mask)
 
OCTAVE_EXPORT octave_value_list Fbitand (const octave_value_list &args, int)
 
OCTAVE_EXPORT octave_value_list Fbitor (const octave_value_list &args, int)
 
OCTAVE_EXPORT octave_value_list Fbitshift (const octave_value_list &args, int)
 
OCTAVE_EXPORT octave_value_list Fbitxor (const octave_value_list &args, int)
 
OCTAVE_EXPORT octave_value_list Fflintmax (const octave_value_list &args, int)
 
OCTAVE_EXPORT octave_value_list Fintmax (const octave_value_list &args, int)
 
OCTAVE_EXPORT octave_value_list Fintmin (const octave_value_list &args, int)
 
OCTAVE_EXPORT octave_value_list Fsizemax (const octave_value_list &args, int)
 
template<typename T >
static int64_t max_mantissa_value ()
 

Macro Definition Documentation

◆ DO_BITSHIFT

#define DO_BITSHIFT (   T)

Definition at line 467 of file bitfcns.cc.

◆ DO_SBITSHIFT

#define DO_SBITSHIFT (   T,
  N 
)
Value:
do \
{ \
int bits_in_type = octave_ ## T :: nbits (); \
T ## NDArray m = m_arg.T ## _array_value (); \
octave_ ## T mask = octave_ ## T::max (); \
if ((N) < bits_in_type) \
mask = bitshift (mask, (N) - bits_in_type); \
else if ((N) < 1) \
mask = 0; \
/* FIXME: 2's complement only? */ \
mask = mask | octave_ ## T :: min (); \
DO_BITSHIFT (T); \
} \
while (0)
bitshift
static int64_t bitshift(double a, int n, int64_t mask)
Definition: bitfcns.cc:434
max
charNDArray max(char d, const charNDArray &m)
Definition: chNDArray.cc:230
min
charNDArray min(char d, const charNDArray &m)
Definition: chNDArray.cc:207
N
F77_RET_T const F77_INT & N
Definition: lo-lapack-proto.h:857
m
T octave_idx_type m
Definition: mx-inlines.cc:773

Definition at line 522 of file bitfcns.cc.

◆ DO_UBITSHIFT

#define DO_UBITSHIFT (   T,
  N 
)
Value:
do \
{ \
int bits_in_type = octave_ ## T :: nbits (); \
T ## NDArray m = m_arg.T ## _array_value (); \
octave_ ## T mask = octave_ ## T::max (); \
if ((N) < bits_in_type) \
mask = bitshift (mask, (N) - bits_in_type); \
else if ((N) < 1) \
mask = 0; \
DO_BITSHIFT (T); \
} \
while (0)

Definition at line 508 of file bitfcns.cc.

Function Documentation

◆ bitop()

octave_value bitop ( const std::string &  fname,
const octave_value_list &  args 
)

Definition at line 156 of file bitfcns.cc.

References octave_value::array_value(), octave_value_list::array_value(), bitop_arg_is_bool(), bitop_arg_is_float(), bitop_arg_is_int(), bitopx(), octave_value::bool_array_value(), error(), octave_value::float_array_value(), octave_value_list::length(), print_usage(), octave_bool::static_class_name(), octave_float_scalar::static_class_name(), octave_scalar::static_class_name(), octave_uint64_matrix::static_type_id(), octave_uint64_scalar::static_type_id(), and x.

Referenced by Fbitand(), Fbitor(), and Fbitxor().

◆ bitop_arg_is_bool()

static int bitop_arg_is_bool ( const octave_value &  arg)
inlinestatic

Definition at line 144 of file bitfcns.cc.

References octave_value::class_name(), and octave_bool::static_class_name().

Referenced by bitop().

◆ bitop_arg_is_float()

static int bitop_arg_is_float ( const octave_value &  arg)
inlinestatic

Definition at line 150 of file bitfcns.cc.

References octave_value::class_name(), and octave_float_scalar::static_class_name().

Referenced by bitop().

◆ bitop_arg_is_int()

static int bitop_arg_is_int ( const octave_value &  arg)
inlinestatic

Definition at line 136 of file bitfcns.cc.

References octave_value::class_name(), octave_bool::static_class_name(), octave_float_scalar::static_class_name(), and octave_scalar::static_class_name().

Referenced by bitop().

◆ bitopx()

template<typename T >
octave_value bitopx ( const std::string &  fname,
const Array< T > &  x,
const Array< T > &  y 
)

Definition at line 124 of file bitfcns.cc.

References bitopxx(), and x.

Referenced by bitop().

◆ bitopxx()

template<typename OP , typename T >
octave_value bitopxx ( const OP &  op,
const std::string &  fname,
const Array< T > &  x,
const Array< T > &  y 
)

Definition at line 84 of file bitfcns.cc.

References Array< T, Alloc >::dims(), error(), Array< T, Alloc >::numel(), Array< T, Alloc >::resize(), and x.

Referenced by bitopx().

◆ bitshift() [1/2]

static int64_t bitshift ( double  a,
int  n,
int64_t  mask 
)
static

Definition at line 434 of file bitfcns.cc.

References n.

Referenced by bitshift().

◆ bitshift() [2/2]

static int64_t bitshift ( float  a,
int  n,
int64_t  mask 
)
static

Definition at line 449 of file bitfcns.cc.

References bitshift(), and n.

◆ Fbitand()

OCTAVE_EXPORT octave_value_list Fbitand ( const octave_value_list &  args,
int   
)

Definition at line 370 of file bitfcns.cc.

References bitop().

◆ Fbitor()

OCTAVE_EXPORT octave_value_list Fbitor ( const octave_value_list &  args,
int   
)

Definition at line 385 of file bitfcns.cc.

References bitop().

◆ Fbitshift()

OCTAVE_EXPORT octave_value_list Fbitshift ( const octave_value_list &  args,
int   
)

Definition at line 568 of file bitfcns.cc.

References octave_value::array_value(), octave_value::class_name(), DO_BITSHIFT, DO_SBITSHIFT, DO_UBITSHIFT, error(), octave_value::float_array_value(), m, n, numel(), and print_usage().

◆ Fbitxor()

OCTAVE_EXPORT octave_value_list Fbitxor ( const octave_value_list &  args,
int   
)

Definition at line 400 of file bitfcns.cc.

References bitop().

◆ Fflintmax()

OCTAVE_EXPORT octave_value_list Fflintmax ( const octave_value_list &  args,
int   
)

Definition at line 686 of file bitfcns.cc.

References error(), ovl(), and print_usage().

◆ Fintmax()

OCTAVE_EXPORT octave_value_list Fintmax ( const octave_value_list &  args,
int   
)

Definition at line 778 of file bitfcns.cc.

References error(), isinteger(), max(), and print_usage().

◆ Fintmin()

OCTAVE_EXPORT octave_value_list Fintmin ( const octave_value_list &  args,
int   
)

Definition at line 892 of file bitfcns.cc.

References error(), isinteger(), min(), and print_usage().

◆ Fsizemax()

OCTAVE_EXPORT octave_value_list Fsizemax ( const octave_value_list &  args,
int   
)

Definition at line 965 of file bitfcns.cc.

References dim_vector::dim_max(), octave_value(), and print_usage().

◆ max_mantissa_value()

template<typename T >
static int64_t max_mantissa_value ( )
static

Definition at line 428 of file bitfcns.cc.