Re: Modern Universe - was: The lists are closing

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Trevor,
   I *think* the issue is that the mv runtime does typecast variables 
on the fly, transparently. Which means that assigning a number or the 
result of a numeric expression (AVAR = 1 * 3) results in AVAR becoming 
an Integer variable. If you then say something 'string-ish'  (AVAR = 
"The answer is " : AVAR)  then the variable is recast on the fly into a 
String variable.

   - Charles "Constant" Barouch

Trevor Ockenden wrote:

Thank you Will but I consider "A = 1" to be an assignment of the number 1
being the result of expression "1" which in my books is numeric.
To clarify this point for others...

"anything on the right hand side of an assignment symbol (in this case "=")
is an expression"
Cheers

Trevor Ockenden
OSP
----- Original Message ----- 
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To: "U2 Users Discussion List" <[EMAIL PROTECTED]>
Sent: Wednesday, March 31, 2004 5:35 AM
Subject: Re: Modern Universe - was: The lists are closing

 

In a message dated 3/30/2004 12:35:32 AM Eastern Standard Time,
   

[EMAIL PROTECTED] writes:
 

You are partly correct when you say UV treats all data as strings.
     

However,
 

if the UV programmer is careful he/she can get it to do maths
     

processing.
 

Variables within UVBasic are string unless the result of an expression
     

is
 

numeric whereby it becomes numeric.

UV stores numeric data such as dates, time and numbers as a
string value with no decimal point etc. quite deliberately.
     

Trevor partly right.  However the MvBASIC statement "A = 1" makes the
   

variable A into a numeric typed datum.  I'm not sure you could say this is
"the result of an expression" being mathematical, after all Store is both a
string and a numeric command.  The system converts the loading of a purely
numeric argument into a LOADN or STOREN type command on some MV systems,
which the loading of a string is a LOAD or LOADS or STORES or something
similar to that.
 

  Of course the programmer just says A = 1 or A = "DOG" and doesn't have
   

to worry about how the argument is typed in the run engine.
 

"Run Engine" Will
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--
    Sincerely,
         Charles Barouch
         www.KeyAlly.com
         [EMAIL PROTECTED]
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