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HP OpenVMS Systems Documentation

HP BASIC for OpenVMS User Manual Previous Contents Index Chapter 12 12 Program Segmentation      12.1     HP BASIC Subprograms          12.1.1         SUB Subprograms          12.1.2         FUNCTION Subprograms      12.2     Declaring Subprograms and Parameters      12.3     Compiling Subprograms      12.4     Invoking Subprograms          12.4.1         Invoking SUB Subprograms          12.4.2         Invoking FUNCTION Subprograms      12.5     Returning Program Status Chapter 13 13 File Input and Output      13.1     Record Formats          13.1.1         Fixed-Length Records          13.1.2         Variable-Length Records          13.1.3         Stream Records      13.2     File Organizations          13.2.1         Terminal-Format Files          13.2.2         Sequential Files          13.2.3         Relative Files          13.2.4         Indexed Files          13.2.5         Virtual Files      13.3     Record Access and Record Context      13.4     I/O and Record Buffers      13.5     Accessing the Contents of a Record          13.5.1         MAP Statement          13.5.2         MAP DYNAMIC and REMAP Statements          13.5.3         MOVE Statement      13.6     File and Record Operations          13.6.1         Opening Files          13.6.2         Creating Virtual Array Files          13.6.3         Locating Records          13.6.4         Reading Records          13.6.5         Writing Records          13.6.6         Deleting Records          13.6.7         Updating Records          13.6.8         Controlling Record Access          13.6.9         Gaining Access to Locked Records          13.6.10         Accessing Records by Record File Address          13.6.11         Transferring Data to Terminal-Format Files          13.6.12         Resetting the File Position          13.6.13         Truncating Files          13.6.14         Renaming Files          13.6.15         Closing Files and Ending I/O          13.6.16         Deleting Files      13.7     File-Related Functions          13.7.1         FSP$ Function          13.7.2         RECOUNT Function          13.7.3         STATUS, VMSSTATUS, and RMSSTATUS Functions      13.8     OPEN Statement Options          13.8.1         BUCKETSIZE Clause          13.8.2         BUFFER Clause          13.8.3         CONNECT Clause          13.8.4         CONTIGUOUS Clause          13.8.5         DEFAULTNAME Clause          13.8.6         EXTENDSIZE Clause          13.8.7         FILESIZE Clause          13.8.8         NOSPAN Clause          13.8.9         RECORDTYPE Clause          13.8.10         TEMPORARY Clause          13.8.11         USEROPEN Clause          13.8.12         WINDOWSIZE Clause Chapter 14 14 Formatting Output with the PRINT USING Statement      14.1     Overview of the PRINT USING Statement      14.2     Using Format Strings      14.3     Printing Numbers          14.3.1         Specifying the Number of Digits          14.3.2         Specifying Decimal Point Location          14.3.3         Printing Numbers with Special Symbols              14.3.3.1             Commas              14.3.3.2             Asterisk-Fill Fields              14.3.3.3             Currency Symbols              14.3.3.4             Negative Fields              14.3.3.5             E (Exponential) Format              14.3.3.6             Leading Zeros              14.3.3.7             Blank-If-Zero Fields              14.3.3.8             Debits and Credits      14.4     Printing Strings          14.4.1         Left-Justified Format          14.4.2         Right-Justified Format          14.4.3         Centered Fields          14.4.4         Extended Fields      14.5     PRINT USING Statement Error Conditions Chapter 15 15 Handling Run-Time Errors      15.1     Default Error Handling      15.2     User-Supplied Error Handlers          15.2.1         Protected Regions          15.2.2         Handlers          15.2.3         Exiting from Handlers              15.2.3.1             RETRY Statement              15.2.3.2             CONTINUE Statement              15.2.3.3             EXIT HANDLER Statement          15.2.4         Selecting the Severity of Errors to Handle          15.2.5         Identifying Errors              15.2.5.1             Determining the Error Number (ERR)              15.2.5.2             Determining the Error Line Number (ERL)              15.2.5.3             Determining Where the Error Occurred (ERN$)              15.2.5.4             Determining the Error Message Text (ERT$)              15.2.5.5             Determining OpenVMS Error Information              15.2.5.6             Determining RMS Error Information          15.2.6         Ctrl/C Trapping          15.2.7         Handling Errors in Multiple-Unit Programs          15.2.8         Forcing Errors      15.3     Using the ON ERROR Statements Previous Next Contents Index