ftell

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

📝Syntax

p = ftell(fid)

📥Input Arguments

Parameter	Description
fid	a file descriptor

📤Output Arguments

Parameter	Description
p	an integer value: position of the file pointer as the number of characters from the beginning of the file.

📄Description

ftell returns the offset of the current byte relative to the beginning of the file associated with the named stream fid.

💡Examples

TXT = 'example about ftell.';
fileID = fopen([tempdir(), 'ftell.txt'],'wt');
fprintf(fileID, TXT);
p1 = ftell(fileID)
fseek(fileID, SEEK_CUR, 'bof');
p2 = ftell(fileID)
status = fclose(fileID);

🔗See Also

fopen fprintf fclose fseek

🕔Version History

Version	Description
1.0.0	initial version

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