Q63901: Incorrect SEEK in Example in BASIC 7.00 Language Reference
Article: Q63901 Product(s): See article Version(s): 7.00 7.10 | 7.00 7.10 Operating System(s): MS-DOS | OS/2 Keyword(s): ENDUSER | SR# S900712-2 docerr | mspl13_basic Last Modified: 15-JAN-1991 On page 323 of the "Microsoft BASIC 7.0: Language Reference" manual, the example for the SEEK statement (on the 6th line from the bottom) incorrectly shows that the process for backing up a file is as follows: SEEK #1, SEEK(1) - LEN(RecordVar) This statement is the correct method for backing up one record position in a binary file. In a binary file, the SEEK function refers to a byte in the file. Therefore, to move forward or backward a record, you would increment or decrement by the number of bytes in each record of the file. However, because the file in the SEEK example on page 323 is a RANDOM access file, a SEEK function refers to each record in the file, not to each byte in the file. Thus, the statement should be corrected to read as follows: SEEK #1, SEEK(1) - 1 This information applies to Microsoft BASIC Professional Development System (PDS) versions 7.00 and 7.10 for MS-DOS and MS OS/2.
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