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qb64/internal/help/UBOUND.txt
Luke Ceddia b586eafd3b Integrated _BLINEINPUT into regular LINE INPUT for BINARY files
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.
2014-07-27 00:06:17 +10:00

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The {{KW|UBOUND}} function returns the largest valid index (upper bound) of an array dimension.
{{PageSyntax}}
:''result%'' = {{KW|UBOUND}}(arrayName[, dimension%])
{{PageDescription}}
* {{Parameter|arrayName}} specifies the name of the array.
* {{Parameter|dimension%}} specifies the dimension number, starting with <code>1</code> for the first dimension.
** If omitted, {{Parameter|dimension%}} is assumed to be <code>1</code>.
** If {{Parameter|dimension%}} is less than <code>1</code> or is greater than the number of dimensions, a [[ERROR Codes|subscript out of range]] error occurs.
* {{KW|UBOUND}}, along with {{KW|LBOUND}}, is used to determine the range of valid indexes of an array.
{{PageExamples}}
{{CodeStart}}{{Cl|DIM}} myArray(5) {{Cl|AS}} {{Cl|INTEGER}}
{{Cl|DIM}} myOtherArray(1 to 2, 3 to 4) {{Cl|AS}} {{Cl|INTEGER}}
{{Cl|PRINT}} {{Cl|UBOUND}}(myArray)
{{Cl|PRINT}} {{Cl|UBOUND}}(myOtherArray, 2)
{{CodeEnd}}
{{OutputStart}} 5
4
{{OutputEnd}}
{{PageSeeAlso}}
* {{KW|Arrays}}, {{KW|LBOUND}}
* {{KW|DIM}}, {{KW|COMMON}}, {{KW|STATIC}}, {{KW|SHARED}}
{{PageNavigation}}