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/*
Copyright (C) 1996, 1997 John W. Eaton
This file is part of Octave.
Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING. If not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#if !defined (octave_data_conv_h)
#define octave_data_conv_h 1
#include <climits>
#include "mach-info.h"
// Not all of the following are currently used.
#if CHAR_BIT != 8
#error "CHAR_BIT is not 8!"
#endif
#if SIZEOF_SHORT == 2
#define TWO_BYTE_INT short
#elif SIZEOF_INT == 2
#define TWO_BYTE_INT int
#else
#error "No 2 byte integer type found!"
#endif
#if SIZEOF_INT == 4
#define FOUR_BYTE_INT int
#elif SIZEOF_LONG == 4
#define FOUR_BYTE_INT long
#else
#error "No 4 byte integer type found!"
#endif
#if SIZEOF_LONG == 8
#define EIGHT_BYTE_INT long
#else
#if SIZEOF_LONG_LONG == 8
// if `long long' is not implemented, then SIZEOF_LONG_LONG will be 0
#define EIGHT_BYTE_INT long long
// if no 8 byte integer type is found, then EIGHT_BYTE_INT is not defined
#endif
#endif
class
oct_data_conv
{
public:
enum data_type
{
dt_int8 = 0,
dt_uint8 = 1,
dt_int16 = 2,
dt_uint16 = 3,
dt_int32 = 4,
dt_uint32 = 5,
dt_int64 = 6,
dt_uint64 = 7,
dt_single = 8,
dt_double = 9,
dt_char = 10,
dt_schar = 11,
dt_uchar = 12,
dt_logical = 13,
dt_short = 14,
dt_ushort = 15,
dt_int = 16,
dt_uint = 17,
dt_long = 18,
dt_ulong = 19,
dt_longlong = 20,
dt_ulonglong = 21,
dt_float = 22,
dt_unknown = 23 // Must be last, have largest value!
};
static data_type string_to_data_type (const std::string& s);
static void string_to_data_type (const std::string& s, int& block_size,
data_type& input_type,
data_type& output_type);
static void string_to_data_type (const std::string& s, int& block_size,
data_type& output_type);
static std::string data_type_as_string (data_type dt);
};
// Add new entries to the end of this enum, otherwise Octave will not
// be able to read binary data files stored in Octave's binary data
// format that were created with previous versions of Octave.
enum save_type
{
LS_U_CHAR = 0,
LS_U_SHORT = 1,
LS_U_INT = 2,
LS_CHAR = 3,
LS_SHORT = 4,
LS_INT = 5,
LS_FLOAT = 6,
LS_DOUBLE = 7,
LS_U_LONG = 8,
LS_LONG = 9
};
extern void
do_double_format_conversion (void *data, int len,
oct_mach_info::float_format from_fmt,
oct_mach_info::float_format to_fmt
= oct_mach_info::native_float_format ());
extern void
do_float_format_conversion (void *data, int len,
oct_mach_info::float_format from_fmt,
oct_mach_info::float_format to_fmt
= oct_mach_info::native_float_format ());
extern void
do_float_format_conversion (void *data, size_t sz, int len,
oct_mach_info::float_format from_fmt,
oct_mach_info::float_format to_fmt
= oct_mach_info::native_float_format ());
extern void
read_doubles (std::istream& is, double *data, save_type type, int len,
bool swap, oct_mach_info::float_format fmt);
extern void
write_doubles (std::ostream& os, const double *data, save_type type, int len);
#endif
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/
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