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Section 8.10.3.7: |
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This class implements a model of a cursor (and associated buffer) into a binary file, inheriting all but one feature definition from the abstract class $FILE_CURSORS{OCTET,BINSTR}.
The following routines are required to be implemented for this class in accordance with the specifications given in the abstract class $FILE_CURSORS of which $FILE_CURSORS{OCTET,BINSTR} is a sub-type :-
The following 'output' routines are required to be implemented for this class in accordance with the specifications given in the abstract class $FILE_CURSORS{OCTET,BINSTR} :-
This is the single 'input' feature associated with the binary file cursor. It allows for arbitrary reading of octets from the current position, updating that position as reading continues.
This routine returns the next count items in the file in a binary string buffer. If there is insufficient data in the file then void is returned.
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Keith
Hopper. Page last modified: Friday, 17 November 2000. |
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