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ftell (FS1)

long ftell( File * f );

Description

Gets the offset from the beginning of a file that the read pointer is currently at.

TIP: ftell() can be used with fseek() to find the length of a file.

   

fseek(f, 0, SEEK_END);   // seek to the end of the file 
FileLength = ftell(f);   // find the length of the file

Parameters

f

A pointer to the file to query.

Return value

The offset in bytes of the read pointer from the beginning of the file: Success.
-1: Failure.

Library

FILESYSTEM.LIB