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Newcomers DBPro Corner / String to Real Number conversion?

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turchino
21
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Joined: 11th Feb 2003
Location: Italy
Posted: 17th Feb 2003 02:05
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Hello,
I read a string from a file with
read string fileno, a$

and the string is a$="Hello: -1.45"
then I extract the number using b$=right$(a$,5)

now how can I convert this string to a REAL number?
if I use a=val(b$) I get 1, which is an Integer...
How can I get a=-1.45 with DBPro??

Thank you...
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Chiwawa
21
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Joined: 13th Oct 2002
Location: Canada
Posted: 17th Feb 2003 03:03
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i dont have db pro...but Real in DB r declared with #..

it should be:
a#=val(b$)
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turchino
21
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Joined: 11th Feb 2003
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Posted: 17th Feb 2003 09:48
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Yes,also # is a real number in DBPro, but it doesn't accept it,because the command VAL returns an integer, it's written on help file...
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MrTAToad
22
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Joined: 26th Aug 2002
Location: United Kingdom
Posted: 17th Feb 2003 14:53
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I've got a plug-in for converting strings to floating point values.

Good news everyone! I really am THAT good...
http://www.nickk.nildram.co.uk/ for great plug-ins - oh my, yes!
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turchino
21
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Posted: 17th Feb 2003 18:03
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I have resolved the problem,and I wrote this code.
I'm posting it, maybe it's usefull to someone...

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Chiwawa
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Posted: 17th Feb 2003 18:24
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ok ...ez ..just take ur number in 2 part...ive made this code....it work fine...

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Chiwawa
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Posted: 17th Feb 2003 18:24
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god ..i was writing mine during u post...
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turchino
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Joined: 11th Feb 2003
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Posted: 17th Feb 2003 18:27
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)

Chiwawa,we got the same result with two different codes!
Now the users have also a choice...

Thank you...
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turchino
21
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Location: Italy
Posted: 17th Feb 2003 18:27
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and you were writing mine during u post...
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Chiwawa
21
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Joined: 13th Oct 2002
Location: Canada
Posted: 17th Feb 2003 18:32
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hmm ive tested your ...and when u enter a string too long..it cut some part... ive tester 123456789.123456789

and i get 123456792 ..with your...and with mine i get 1.23457e+008=123457.000

then...mine work ..your not sorry im the king ..just kidding..
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turchino
21
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Posted: 17th Feb 2003 18:33
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I'm not working for Nasa, so 5 digits after the . are enough for me!!
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Chiwawa
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Posted: 17th Feb 2003 18:35
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doh... damn..why edit doesnt work!!!

i wrote 1.23457e+008=123457.000

but its 1.23457e+008=123457000.0
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Chiwawa
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Location: Canada
Posted: 17th Feb 2003 18:37
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...i was still writing a post..during u post..

yeah i know..5 digigt is enough..but.....if u give something like that....in a calcul...then ..your calcul is .......WRONG ...mip mip
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Chiwawa
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Posted: 17th Feb 2003 18:50
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in function now :

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Chiwawa
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Posted: 18th Feb 2003 01:13
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damn...i should test it before..to do that......it return an real..but i know in help..its wrote integer...but.

e.e.e maybe in DBPRo..but in DB 1.13..it return both..
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