GNU Octave  8.1.0
A high-level interpreted language, primarily intended for numerical computations, mostly compatible with Matlab
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base_stream Class Referenceabstract

#include "oct-stream.h"

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Public Member Functions

 base_stream (const base_stream &)=delete
 
 base_stream (std::ios::openmode arg_md=std::ios::in|std::ios::out, mach_info::float_format ff=mach_info::native_float_format(), const std::string &encoding="utf-8")
 
virtual ~base_stream (void)=default
 
void close (void)
 
virtual void do_close (void)
 
virtual bool eof (void) const =0
 
std::string error (bool clear, int &err_num)
 
virtual int file_number (void) const
 
virtual std::istream * input_stream (void)
 
bool is_open (void) const
 
virtual std::string name (void) const =0
 
bool ok (void) const
 
base_stream & operator= (const base_stream &)=delete
 
virtual std::ostream * output_stream (void)
 
std::ostream * preferred_output_stream (void)
 
virtual int seek (off_t offset, int origin)=0
 
virtual off_t tell (void)=0
 

Protected Member Functions

OCTINTERP_API void clear (void)
 
OCTINTERP_API void clearerr (void)
 
std::string encoding (void) const
 
OCTINTERP_API void error (const std::string &msg)
 
OCTINTERP_API void error (const std::string &who, const std::string &msg)
 
mach_info::float_format float_format (void) const
 
int mode (void) const
 

Private Types

typedef string::deletable_facet< string::codecvt_u8 > convfacet_u8
 

Private Member Functions

OCTINTERP_API std::string do_gets (octave_idx_type max_len, bool &err, bool strip_newline, const std::string &who)
 
OCTINTERP_API int do_numeric_printf_conv (std::ostream &os, const printf_format_elt *elt, int nsa, int sa_1, int sa_2, const octave_value &val, const std::string &who)
 
OCTINTERP_API bool do_oscanf (const scanf_format_elt *elt, octave_value &, const std::string &who)
 
OCTINTERP_API int do_printf (printf_format_list &fmt_list, const octave_value_list &args, const std::string &who)
 
OCTINTERP_API octave_value do_scanf (scanf_format_list &fmt_list, octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, octave_idx_type &count, const std::string &who)
 
OCTINTERP_API octave_value do_textscan (const std::string &fmt, octave_idx_type ntimes, const octave_value_list &options, const std::string &who, octave_idx_type &count)
 
OCTINTERP_API void field_width_error (const std::string &who) const
 
OCTINTERP_API int flush (void)
 
OCTINTERP_API std::string getl (octave_idx_type max_len, bool &err, const std::string &who)
 
OCTINTERP_API std::string gets (octave_idx_type max_len, bool &err, const std::string &who)
 
OCTINTERP_API void invalid_operation (const std::string &who, const char *rw)
 
OCTINTERP_API octave_value_list oscanf (const std::string &fmt, const std::string &who)
 
OCTINTERP_API int printf (const std::string &fmt, const octave_value_list &args, const std::string &who)
 
OCTINTERP_API int puts (const std::string &s, const std::string &who)
 
OCTINTERP_API octave_value scanf (const std::string &fmt, const Array< double > &size, octave_idx_type &count, const std::string &who)
 
OCTINTERP_API off_t skipl (off_t count, bool &err, const std::string &who)
 

Private Attributes

std::ostream * m_conv_ostream
 
std::string m_encoding
 
std::string m_errmsg
 
bool m_fail
 
mach_info::float_format m_flt_fmt
 
int m_mode
 
bool m_open_state
 

Friends

class stream
 

Detailed Description

Definition at line 66 of file oct-stream.h.

Member Typedef Documentation

◆ convfacet_u8

typedef string::deletable_facet<string::codecvt_u8> base_stream::convfacet_u8
private

Definition at line 215 of file oct-stream.h.

Constructor & Destructor Documentation

◆ base_stream() [1/2]

base_stream::base_stream ( std::ios::openmode  arg_md = std::ios::in | std::ios::out,
mach_info::float_format  ff = mach_info::native_float_format (),
const std::string &  encoding = "utf-8" 
)
inline

Definition at line 74 of file oct-stream.h.

◆ base_stream() [2/2]

base_stream::base_stream ( const base_stream &  )
delete

◆ ~base_stream()

virtual base_stream::~base_stream ( void  )
virtualdefault

Member Function Documentation

◆ clear()

void base_stream::clear ( void  )
protected

Definition at line 4087 of file oct-stream.cc.

References m_errmsg, and m_fail.

Referenced by error().

◆ clearerr()

void base_stream::clearerr ( void  )
protected

Definition at line 4094 of file oct-stream.cc.

References input_stream(), and preferred_output_stream().

◆ close()

void base_stream::close ( void  )
inline

Definition at line 152 of file oct-stream.h.

References stream::is_open().

◆ do_close()

virtual void base_stream::do_close ( void  )
inlinevirtual

Reimplemented in tstdiostream< BUF_T, STREAM_T, FILE_T >, tstdiostream< c_file_ptr_buf, io_c_file_ptr_stream, FILE * >, tstdiostream< c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile >, and fstream.

Definition at line 150 of file oct-stream.h.

◆ do_gets()

std::string base_stream::do_gets ( octave_idx_type  max_len,
bool &  err,
bool  strip_newline,
const std::string &  who 
)
private

Definition at line 4110 of file oct-stream.cc.

References __get_interpreter__(), encoding(), error(), file_number(), input_stream(), interpreter::interactive(), invalid_operation(), u8_from_encoding(), and textscan_format_list::who.

Referenced by do_oscanf(), do_scanf(), getl(), and gets().

◆ do_numeric_printf_conv()

int base_stream::do_numeric_printf_conv ( std::ostream &  os,
const printf_format_elt *  elt,
int  nsa,
int  sa_1,
int  sa_2,
const octave_value &  val,
const std::string &  who 
)
private

Definition at line 5816 of file oct-stream.cc.

References do_printf_conv(), octave_value::double_value(), error(), printf_format_elt::flags, octave_value::int64_scalar_value(), is_nan_or_inf(), lo_ieee_is_NA, lo_ieee_isinf, ok_for_signed_int_conv(), ok_for_unsigned_int_conv(), printf_format_elt::prec, switch_to_g_format(), printf_format_elt::text, printf_format_elt::type, octave_value::uint64_scalar_value(), octave_int< T >::value(), and textscan_format_list::who.

Referenced by do_printf().

◆ do_oscanf()

bool base_stream::do_oscanf ( const scanf_format_elt *  elt,
octave_value &  retval,
const std::string &  who 
)
private

Definition at line 5151 of file oct-stream.cc.

References __get_interpreter__(), BEGIN_C_CONVERSION, BEGIN_CHAR_CLASS_CONVERSION, BEGIN_S_CONVERSION, scanf_format_elt::discard, do_gets(), DO_LITERAL_CONVERSION, DO_PCT_CONVERSION, DO_WHITESPACE_CONVERSION, error(), application::forced_interactive(), input_stream(), interpreter::interactive(), scanf_format_elt::literal_conversion, scanf_format_elt::modifier, name(), octave_scan(), ok(), scanf_format_elt::text, scanf_format_elt::type, scanf_format_elt::whitespace_conversion, and textscan_format_list::who.

Referenced by oscanf().

◆ do_printf()

int base_stream::do_printf ( printf_format_list &  fmt_list,
const octave_value_list &  args,
const std::string &  who 
)
private

Definition at line 5943 of file oct-stream.cc.

References printf_format_elt::args, do_numeric_printf_conv(), do_printf_string(), error(), printf_value_cache::exhausted(), field_width_error(), printf_format_list::first(), printf_format_elt::fw, printf_value_cache::get_next_value(), printf_value_cache::int_value(), invalid_operation(), octave_value::is_string(), octave_value::isempty(), textscan_format_list::m_nconv, printf_format_list::next(), printf_format_list::num_conversions(), printf_format_elt::prec, preferred_output_stream(), octave_value::string_value(), printf_format_elt::text, printf_format_elt::type, and textscan_format_list::who.

Referenced by printf().

◆ do_scanf()

octave_value base_stream::do_scanf ( scanf_format_list &  fmt_list,
octave_idx_type  nr,
octave_idx_type  nc,
bool  one_elt_size_spec,
octave_idx_type &  count,
const std::string &  who 
)
private

Definition at line 4719 of file oct-stream.cc.

References __get_interpreter__(), scanf_format_list::all_character_conversions(), BEGIN_C_CONVERSION, BEGIN_CHAR_CLASS_CONVERSION, BEGIN_S_CONVERSION, octave_value::convert_to_str(), scanf_format_elt::discard, do_gets(), DO_LITERAL_CONVERSION, DO_PCT_CONVERSION, do_scanf_conv(), DO_WHITESPACE_CONVERSION, error(), file_number(), FINISH_CHARACTER_CONVERSION, scanf_format_list::first(), application::forced_interactive(), Array< T, Alloc >::fortran_vec(), input_stream(), interpreter::interactive(), scanf_format_list::length(), scanf_format_elt::literal_conversion, textscan_format_list::m_nconv, Matrix, scanf_format_elt::modifier, name(), scanf_format_list::next(), scanf_format_elt::null, scanf_format_list::num_conversions(), ok(), panic_impossible, Matrix::resize(), scanf_format_elt::text, scanf_format_elt::type, scanf_format_elt::whitespace_conversion, and textscan_format_list::who.

Referenced by scanf().

◆ do_textscan()

octave_value base_stream::do_textscan ( const std::string &  fmt,
octave_idx_type  ntimes,
const octave_value_list &  options,
const std::string &  who,
octave_idx_type &  count 
)
private

Definition at line 5441 of file oct-stream.cc.

References __get_interpreter__(), encoding(), error(), file_number(), input_stream(), interpreter::interactive(), invalid_operation(), scanner, and textscan_format_list::who.

◆ encoding()

std::string base_stream::encoding ( void  ) const
inlineprotected

Definition at line 187 of file oct-stream.h.

Referenced by istrstream::create(), ostrstream::create(), do_gets(), and do_textscan().

◆ eof()

virtual bool base_stream::eof ( void  ) const
pure virtual

Implemented in ostrstream, istrstream, tstdiostream< BUF_T, STREAM_T, FILE_T >, tstdiostream< c_file_ptr_buf, io_c_file_ptr_stream, FILE * >, tstdiostream< c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile >, ostream, istream, base_iostream, and fstream.

◆ error() [1/3]

std::string base_stream::error ( bool  clear,
int &  err_num 
)

Definition at line 6115 of file oct-stream.cc.

References clear(), m_errmsg, and m_fail.

Referenced by fstream::fstream(), do_gets(), do_numeric_printf_conv(), do_oscanf(), do_printf(), do_scanf(), do_textscan(), field_width_error(), invalid_operation(), base_iostream::invalid_operation(), oscanf(), printf(), puts(), scanf(), fstream::seek(), base_strstream::seek(), skipl(), fstream::tell(), and base_strstream::tell().

◆ error() [2/3]

void base_stream::error ( const std::string &  msg)
protected

Definition at line 4073 of file oct-stream.cc.

References m_errmsg, and m_fail.

◆ error() [3/3]

void base_stream::error ( const std::string &  who,
const std::string &  msg 
)
protected

Definition at line 4080 of file oct-stream.cc.

References m_errmsg, m_fail, and textscan_format_list::who.

◆ field_width_error()

void base_stream::field_width_error ( const std::string &  who) const
private

Definition at line 5936 of file oct-stream.cc.

References error(), and textscan_format_list::who.

Referenced by do_printf().

◆ file_number()

virtual int base_stream::file_number ( void  ) const
inlinevirtual

Reimplemented in tstdiostream< BUF_T, STREAM_T, FILE_T >, tstdiostream< c_file_ptr_buf, io_c_file_ptr_stream, FILE * >, and tstdiostream< c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile >.

Definition at line 161 of file oct-stream.h.

References stream::name().

Referenced by do_gets(), do_scanf(), do_textscan(), and skipl().

◆ float_format()

mach_info::float_format base_stream::float_format ( void  ) const
inlineprotected

Definition at line 185 of file oct-stream.h.

◆ flush()

int base_stream::flush ( void  )
private

Definition at line 5473 of file oct-stream.cc.

References invalid_operation(), and preferred_output_stream().

◆ getl()

std::string base_stream::getl ( octave_idx_type  max_len,
bool &  err,
const std::string &  who 
)
private

Definition at line 4214 of file oct-stream.cc.

References do_gets(), and textscan_format_list::who.

◆ gets()

std::string base_stream::gets ( octave_idx_type  max_len,
bool &  err,
const std::string &  who 
)
private

Definition at line 4221 of file oct-stream.cc.

References do_gets(), and textscan_format_list::who.

◆ input_stream()

virtual std::istream* base_stream::input_stream ( void  )
inlinevirtual

Reimplemented in ostrstream, istrstream, tstdiostream< BUF_T, STREAM_T, FILE_T >, tstdiostream< c_file_ptr_buf, io_c_file_ptr_stream, FILE * >, tstdiostream< c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile >, ostream, istream, and fstream.

Definition at line 113 of file oct-stream.h.

Referenced by clearerr(), do_gets(), do_oscanf(), do_scanf(), do_textscan(), oscanf(), scanf(), and skipl().

◆ invalid_operation()

void base_stream::invalid_operation ( const std::string &  who,
const char *  rw 
)
private

Definition at line 6128 of file oct-stream.cc.

References error(), and textscan_format_list::who.

Referenced by do_gets(), do_printf(), do_textscan(), flush(), oscanf(), puts(), scanf(), and skipl().

◆ is_open()

bool base_stream::is_open ( void  ) const
inline

Definition at line 148 of file oct-stream.h.

◆ mode()

int base_stream::mode ( void  ) const
inlineprotected

Definition at line 183 of file oct-stream.h.

Referenced by fstream::input_stream(), and fstream::output_stream().

◆ name()

virtual std::string base_stream::name ( void  ) const
pure virtual

Implemented in base_strstream, tstdiostream< BUF_T, STREAM_T, FILE_T >, tstdiostream< c_file_ptr_buf, io_c_file_ptr_stream, FILE * >, tstdiostream< c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile >, base_iostream, and fstream.

Referenced by do_oscanf(), and do_scanf().

◆ ok()

bool base_stream::ok ( void  ) const
inline

Definition at line 175 of file oct-stream.h.

Referenced by do_oscanf(), do_scanf(), and oscanf().

◆ operator=()

base_stream& base_stream::operator= ( const base_stream &  )
delete

◆ oscanf()

octave_value_list base_stream::oscanf ( const std::string &  fmt,
const std::string &  who 
)
private

Definition at line 5367 of file oct-stream.cc.

References do_oscanf(), error(), scanf_format_list::first(), input_stream(), invalid_operation(), octave_value::is_defined(), len, scanf_format_list::length(), textscan_format_list::m_nconv, scanf_format_list::next(), scanf_format_list::num_conversions(), ok(), octave_value_list::resize(), and textscan_format_list::who.

◆ output_stream()

virtual std::ostream* base_stream::output_stream ( void  )
inlinevirtual

Reimplemented in ostrstream, istrstream, tstdiostream< BUF_T, STREAM_T, FILE_T >, tstdiostream< c_file_ptr_buf, io_c_file_ptr_stream, FILE * >, tstdiostream< c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile >, ostream, istream, and fstream.

Definition at line 119 of file oct-stream.h.

◆ preferred_output_stream()

std::ostream* base_stream::preferred_output_stream ( void  )
inline

Definition at line 124 of file oct-stream.h.

References stream::output_stream().

Referenced by clearerr(), do_printf(), flush(), and puts().

◆ printf()

int base_stream::printf ( const std::string &  fmt,
const octave_value_list &  args,
const std::string &  who 
)
private

Definition at line 6063 of file oct-stream.cc.

References do_printf(), error(), printf_format_list::num_conversions(), and textscan_format_list::who.

◆ puts()

int base_stream::puts ( const std::string &  s,
const std::string &  who 
)
private

Definition at line 6076 of file oct-stream.cc.

References error(), invalid_operation(), preferred_output_stream(), and textscan_format_list::who.

◆ scanf()

octave_value base_stream::scanf ( const std::string &  fmt,
const Array< double > &  size,
octave_idx_type &  count,
const std::string &  who 
)
private

Definition at line 5117 of file oct-stream.cc.

References do_scanf(), error(), get_size(), input_stream(), invalid_operation(), Matrix, scanf_format_list::num_conversions(), and textscan_format_list::who.

◆ seek()

virtual int base_stream::seek ( off_t  offset,
int  origin 
)
pure virtual

Implemented in base_strstream, tstdiostream< BUF_T, STREAM_T, FILE_T >, tstdiostream< c_file_ptr_buf, io_c_file_ptr_stream, FILE * >, tstdiostream< c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile >, base_iostream, and fstream.

◆ skipl()

off_t base_stream::skipl ( off_t  count,
bool &  err,
const std::string &  who 
)
private

Definition at line 4228 of file oct-stream.cc.

References __get_interpreter__(), error(), file_number(), input_stream(), interpreter::interactive(), invalid_operation(), and textscan_format_list::who.

◆ tell()

virtual off_t base_stream::tell ( void  )
pure virtual

Implemented in istrstream, base_strstream, tstdiostream< BUF_T, STREAM_T, FILE_T >, tstdiostream< c_file_ptr_buf, io_c_file_ptr_stream, FILE * >, tstdiostream< c_zfile_ptr_buf, io_c_zfile_ptr_stream, gzFile >, base_iostream, and fstream.

Friends And Related Function Documentation

◆ stream

friend class stream
friend

Definition at line 70 of file oct-stream.h.

Referenced by istrstream::create(), fstream::create(), and ostrstream::create().

Member Data Documentation

◆ m_conv_ostream

std::ostream* base_stream::m_conv_ostream
private

Definition at line 225 of file oct-stream.h.

◆ m_encoding

std::string base_stream::m_encoding
private

Definition at line 212 of file oct-stream.h.

◆ m_errmsg

std::string base_stream::m_errmsg
private

Definition at line 234 of file oct-stream.h.

Referenced by clear(), and error().

◆ m_fail

bool base_stream::m_fail
private

Definition at line 228 of file oct-stream.h.

Referenced by clear(), and error().

◆ m_flt_fmt

mach_info::float_format base_stream::m_flt_fmt
private

Definition at line 209 of file oct-stream.h.

◆ m_mode

int base_stream::m_mode
private

Definition at line 206 of file oct-stream.h.

◆ m_open_state

bool base_stream::m_open_state
private

Definition at line 231 of file oct-stream.h.

The documentation for this class was generated from the following files: