Scilab Website | Contribute with GitLab | Mailing list archives | ATOMS toolboxes
Scilab Online Help
2023.0.0 - Français


mtell

Returns the offset of the current byte relative to the beginning of a file

Syntax

mtell([fd])

Arguments

fd

a scalar: a file descriptor returned by the function mopen. -1 stands for last opened file. Default value is -1.

Description

The function mtell returns the offset of the current byte relative to the beginning of the file associated with the named stream fd.

Examples

// Open in binary write a temporary file
testFile=TMPDIR + '/testFile.bin';
fd = mopen(testFile,'wb');

mput(42,'d'); // Will write 42 in last opened file
mtell() // Will return 8, the current position in the file descriptor

mput(42+2,'d', fd); // Will open fd transparently to write 42
mtell(fd) // Will return 16, the current position in the file descriptor

mseek(0, fd); // return at the beginning of the file
mtell(fd) // Will return 0

mclose(fd);

See also

  • mclose — closes opened files
  • meof — checks if end of file has been reached
  • mfprintf — converts, formats, and writes data to a file
  • fprintfMat — writes a matrix in a file
  • mfscanf — reads input from the stream pointer stream (interface to the C fscanf function)
  • fscanfMat — reads a matrix from a text file
  • mget — parses numbers in a binary file and returns them as decimals
  • mgetstr — reads a character string from a file
  • mopen — opens files in Scilab
  • mprintf — converts, formats, and writes data to the main scilab window
  • mput — writes byte or word in a given binary format
  • mputstr — write a single text in an open file
  • mseek — sets current position in a binary file
  • mdelete — deletes file(s)
Report an issue
<< mseek Entrées/Sorties [fichiers] save format >>

Copyright (c) 2022-2023 (Dassault Systèmes)
Copyright (c) 2017-2022 (ESI Group)
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors
Last updated:
Mon Mar 27 10:12:38 GMT 2023