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Forum Index : Microcontroller and PC projects : MMBasic and string handling with non-integers

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vegipete

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Joined: 29/01/2013
Location: Canada
Posts: 1149

Posted: 06:28am 19 Dec 2020

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Is this the expected behaviour?

> a$ = "123456789"
> print left$(a$,1.4)
1
> print left$(a$,1.5)
12

What is happening, you ask?
The number part of the left$ function is being ROUNDED, not truncated.

This is with a CMM2, although I presume other MMBasic devices do the same.

Comments?

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TassyJim

Guru

Joined: 07/08/2011
Location: Australia
Posts: 6360

Posted: 06:47am 19 Dec 2020

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That is what happens when you get a float to integer conversion.
If you prefer to truncate, use INT or FIX

dim integer x
dim float y

for y = 0 to 2 step 0.1
x = y
print x,y
next y

Jim

VK7JH
MMedit

vegipete

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Joined: 29/01/2013
Location: Canada
Posts: 1149

Posted: 07:05am 19 Dec 2020

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Okey-dokey. FIX it is.

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