FreeMat
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Section: Input/Ouput Functions
Returns the current file position for a valid file handle. The general use of this function is
n = ftell(handle)
The handle
argument must be a valid and active file handle. The return is the offset into the file relative to the start of the file (in bytes).
Here is an example of using ftell
to determine the current file position. We read 512 4-byte floats, which results in the file pointer being at position 512*4 = 2048.
--> fp = fopen('test.dat','wb'); --> fwrite(fp,randn(512,1)); --> fclose(fp); --> fp = fopen('test.dat','rb'); --> x = fread(fp,[512,1],'float'); --> ftell(fp) ans = 2048