Difference between revisions of "Error Messages/40020"

Latest revision as of 01:26, 4 February 2016

Error message examples

The condition for "while" evaluates to an array. It should evaluate to true (non-zero) of false (zero).

Cause

This error is caused when an array is passed as the condition of a while loop. The following code will produce this error as Time is an array and Time > 5 will evaluate to an array.

Var a:= 5;

While(Time > 5) Do{

a++;

}

...

Remedies

Correct the condition for the while loop so it evaluates to true or false.

Suggested revised message

In a construct WHILE <cond> DO <exp>, the condition should be a scalar (true (non-zero) or false (zero)), but not an array. See Ensuring Array Abstraction in Analytica User Guide on how to deal with this.

@@ Line 1: / Line 1: @@
-= Error Message Examples =
+[[Category:Error messages]]
- The condition for "while" evaluates to an array. It should evaluate to true(non-zero) of false(zero).
+== Error message examples ==
-= Cause =
+:<code>''The condition for "while" evaluates to an array. It should evaluate to true (non-zero) of false (zero).''</code>
-This error is caused when an array is passed as the condition of a while loop. The following code will produce this error as Time is an array and "Time > 5" will evaluate to an array.
+== Cause ==
+This error is caused when an array is passed as the condition of a [[while]] loop. The following code will produce this error as [[Time]] is an array and <code>Time > 5</code> will evaluate to an array.
-<code>
+:<code>Var a:= 5; </code>
-Var a:= 5; <br>
+:<code>While(Time > 5) Do{</code>
-While( Time > 5 ) Do{<br>
+:<code>a++;</code>
-a++;<br>
+:<code>}</code>
-}<br>
+:<code>...</code>
-...
-</code>
-= Remedies =
+== Remedies ==
 Correct the condition for the while loop so it evaluates to true or false.
-== Suggested revised message ==
+=== Suggested revised message ===
+In a construct '''WHILE''' <cond> '''DO''' <exp>, the condition should be a scalar (true (non-zero) or false (zero)), but not an [[array]].  See [[Ensuring Array Abstraction]] in [[Analytica User Guide]] on how to deal with this.
-In a construct "WHILE <b> DO <e>, the condition should be a scalar (true(non-zero) or false(zero)), but not an array.  See the [[Analytica User Guide]] chapter [[Procedural Programming]] section [[Ensuring Array Abstraction]] on how to deal with this.
-<br>
+==See Also==
-<comments />
+* [[While..Do]]
+* [[Time]]
+* [[Array Abstraction]]
+* [[Ensuring Array Abstraction]]