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JohnOne

Question about Variable types

5 posts in this topic

Looking at the function VarGetType() in the helpfile, which the example of is this.

$int = 1
$float = 2.0
Msgbox(0, "Types", "$int is " & VarGetType($int) & @CRLF & "$float is " & VarGetType($float) )

$float is returned as double

Well I thought it was a floating point variable.

Are float and double the same thing or does this function not return float ?

Or am I missing something ?


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#2 ·  Posted (edited)

JohnOne,

From the Help file for VarGetType:

"Remarks - IsInt can return different results as it tries to convert from a string or float." - where IsInt is presumably a misprint for VarGetType

So you cannot say they did not warn you! :(

M23

P.S. I will raise a ticket for the documentation.

Edit: Ticket #1544 raised.

Edited by Melba23

Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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"float" vs. "double" is long-rooted terminology. It comes from the times when a float (or single precision floating-point) variable was a bargain in computation time and processor complexity. When technology offered double (double precision) for about the same cost in computation time and processor price, most things shifted to double. There is also "long double" floating around.

Let's say that for AutoIt, a floating-point variable is a double, about the same as a deadly snake due to pitfalls with inaccuracies.


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