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Main Board => Discussions => Language => Topic started by: Danilo David on March 12, 2020, 02:37:11 AM

Title: System function NUM()
Post by: Danilo David on March 12, 2020, 02:37:11 AM

Hi,

Long time ago we had a problem about  the comma in NUM function and now we did encounter it again,

Example: When you have

A$="200,05" we expect in the NUM result is 200.05 but when you PRINT NUM(A$) the result is 20005


A$="200,,,,05"  PRINT NUM(A$) the result is 20005 also


We try also to change parameter 'TH'=0 and set 'DP'=46 but we get same result

Of-course this is very dangerous in our part, Did anyone encountered this also?



Thank you,

Title: Re: System function NUM()
Post by: Thomas Bock on March 12, 2020, 04:37:16 AM

The NUM function ignores TH and DP. That is what the documentation says. Example #2 exactly shows that.
We had to deal with this in the past as well. And it took a noticable amount of time to find the reason for our huge results.

The real question is:
Who/What passes decimal values written in national notation to your program? That is quite uncommon.