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DarkBASIC Professional Discussion / Information about Float variables

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davidhan
10
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Joined: 17th Oct 2014
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Posted: 20th Oct 2014 06:09
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This is rather embarrasing since I have been using DBPro for years.
But during the last year I have worked more with MEL and C# etc, so I may have forgotten how to do it (tough I have searched, and looked through my old codes)

The problem is I cant seem to get float variables to work

like:

var# = 640/100
print var#
wait key

The result I get is 6

It should be 6,4

So something is wrong.

Does anyone know what could be wrong?

A Nice day.
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Van B
Moderator
22
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Joined: 8th Oct 2002
Location: Sunnyvale
Posted: 20th Oct 2014 13:35
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It's just the way DBPro works - if your equation multiplies or divides by a whole number, the result is a whole number.

You need to specify the decimal, like:

var#=640.0/100.0

I am the one who knocks...
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Kevin Picone
22
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Joined: 27th Aug 2002
Location: Australia
Posted: 21st Oct 2014 11:15
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The resulting data type of an operation is cast based on the two input data types. If both sides of the operator are integer, then the operation will be performed as an integer operation. But, If either the left or right hand side is a float, the operation will be performed on the FPU as float.


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