www.delorie.com/gnu/docs/gforth/gforth_222.html   search  
 
Buy GNU books!


Gforth Manual

[ < ] [ > ]   [ << ] [ Up ] [ >> ]         [Top] [Contents] [Index] [ ? ]

8.6.2 Ambiguous conditions

attempting to position a file outside its boundaries:
REPOSITION-FILE is performed as usual: Afterwards, FILE-POSITION returns the value given to REPOSITION-FILE.

attempting to read from file positions not yet written:
End-of-file, i.e., zero characters are read and no error is reported.

file-id is invalid (INCLUDE-FILE):
An appropriate exception may be thrown, but a memory fault or other problem is more probable.

I/O exception reading or closing file-id (INCLUDE-FILE, INCLUDED):
The ior produced by the operation, that discovered the problem, is thrown.

named file cannot be opened (INCLUDED):
The ior produced by open-file is thrown.

requesting an unmapped block number:
There are no unmapped legal block numbers. On some operating systems, writing a block with a large number may overflow the file system and have an error message as consequence.

using source-id when blk is non-zero:
source-id performs its function. Typically it will give the id of the source which loaded the block. (Better ideas?)


  webmaster     delorie software   privacy  
  Copyright 2003   by The Free Software Foundation     Updated Jun 2003