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 C_FADV()

 DESCRIPTION

 C_FADV() advances the specified file handle to the next line in a
 text file.

 NOTES

 Each line in the text file must be terminated with a new-line
 character (ASCII 13 and 10) and the line can not be greater than
 500 bytes.

 SYNTAX

 C_FADV(handle)

 PARAMETERS

 handle (N) is the file handle number assigned when the file was opened.

 RETURNS

 C_FADV() returns the new position in the file after moving the file
 pointer.

 EXAMPLES

 f1 = fopen("test.txt",2)       && open for read/write
 ...
 for i = 1 to 20
   linepos[i] = c_fadv(f1)      && store line positions
 next