Info Catalog octave: Basic Input and Output octave: Input and Output

octave: C-Style I/O Functions

 
 14.2 C-Style I/O Functions
 ==========================
 
 Octave’s C-style input and output functions provide most of the
 functionality of the C programming language’s standard I/O library.  The
 argument lists for some of the input functions are slightly different,
 however, because Octave has no way of passing arguments by reference.
 
    In the following, FILE refers to a filename and ‘fid’ refers to an
 integer file number, as returned by ‘fopen’.
 
    There are three files that are always available.  Although these
 files can be accessed using their corresponding numeric file ids, you
 should always use the symbolic names given in the table below, since it
 will make your programs easier to understand.
 
  -- : stdin ()
      Return the numeric value corresponding to the standard input
      stream.
 
      When Octave is used interactively, stdin is filtered through the
      command line editing functions.
 
      See also: stdout XREFstdout, stderr XREFstderr.
 
  -- : stdout ()
      Return the numeric value corresponding to the standard output
      stream.
 
      Data written to the standard output is normally filtered through
      the pager.
 
      See also: stdin XREFstdin, stderr XREFstderr.
 
  -- : stderr ()
      Return the numeric value corresponding to the standard error
      stream.
 
      Even if paging is turned on, the standard error is not sent to the
      pager.  It is useful for error messages and prompts.
 
      See also: stdin XREFstdin, stdout XREFstdout.
 

Menu

 
· Opening and Closing Files
· Simple Output
· Line-Oriented Input
· Formatted Output
· Output Conversion for Matrices
· Output Conversion Syntax
· Table of Output Conversions
· Integer Conversions
· Floating-Point Conversions
· Other Output Conversions
· Formatted Input
· Input Conversion Syntax
· Table of Input Conversions
· Numeric Input Conversions
· String Input Conversions
· Binary I/O
· Temporary Files
· EOF and Errors
· File Positioning
 

Info Catalog octave: Basic Input and Output octave: Input and Output