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b586eafd3b
LINE INPUT will now use the faster method if passed a file handle that has been opened FOR BINARY. As such, the _BLINEINPUT command has been removed. qb64.bas now takes advantage of this for reading from '$include files, at least in Include Manager 1. Some tweaking of internal/source/main.txt was required to get things into a sane state, so I'm holing off changing the compiler any further so the auto-builder can make sure everything's smoothed over. Note: Everything should still compile as normal; I'm just being overcautious.
48 lines
1.8 KiB
Plaintext
48 lines
1.8 KiB
Plaintext
The '''DATE$''' statement sets the current computer date to another [[STRING]] value.
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:::''Syntax:'' DATE$ = String_expression
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* String expression can use slash or dash formats when assigning the date:
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::::mm-dd-yyyy
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::::mm/dd/yyyy
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* String expression or variable must contain the months, day and 4 digit year to be changed (10 valid characters).
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* If value is not a valid formatted string, a "Type Mismatch" error results. The previous DATE$ value will be retained.
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* The current date (as assigned when the operating system was initialized) can be saved to restore later with the [[DATE$]] function.
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*The DATE$ function returns a 10-character string in the form ''mm-dd-yyyy''. ''mm'' is the month (01 to 12), ''dd'' is the day (01 to 31), and ''yyyy'' is the four digit year.
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* '''Note: Some systems may not allow the DATE to be reset or require Administrator privileges.''' Try a batch file or [[SHELL]].
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* [[Keywords_currently_not_supported_by_QB64#Keywords_Not_Supported_in_Linux_or_MAC_OSX_versions|Keyword Not Supported in Linux or MAC versions]]
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''Example:'' Backdating computer to run old software.
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{{CodeStart}}
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today$ = {{Cl|DATE$}} ' function saves current computer date value
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PRINT today$ ' verify actual date
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{{Cl|DATE$ (statement)|DATE$}} = "12-25-2000" ' literal statement changes date
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PRINT {{Cl|DATE$}} ' verify new date setting
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{{Cl|SHELL}} "CMD /C " + programfile$ 'run old program
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K$ = {{Cl|INPUT$}}(1) ' press a key
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DATE$ = today$ ' statement resets computer to original date later in program
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PRINT {{Cl|DATE$}} ' verify present setting
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{{CodeEnd}}
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{{OutputStart}}
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09-01-2009
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12-25-2000
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09-01-2009
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{{OutputEnd}}
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''See also:''
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[[DATE$]], [[TIME$]], [[TIME$ (statement)]]
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{{PageNavigation}} |