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See the recommended documentation of this function

Aide de Scilab >> Entrées/Sorties [fichiers] > mtell

mtell

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

Calling Sequence

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 an opened file
  • 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 — reads byte or word in a given binary format and converts to a double type
  • mgetstr — reads a character string from a file
  • mopen — opens a file in Scilab
  • mprintf — converts, formats, and writes data to the main scilab window
  • mput — writes byte or word in a given binary format
  • mputstr — writes a character string in a file
  • mseek — sets current position in a binary file
  • mdelete — deletes file(s)
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Last updated:
Thu Oct 02 13:54:34 CEST 2014