Difference between revisions of "While"

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m (<lsl> examples)
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|spec
|spec
|caveats
|caveats
|examples=<pre>//single statement
|examples=<lsl>
//single statement
integer a = 0;
integer a = 0;
integer b = 10;
integer b = 10;
while(a < b)
while(a < b)
     llOwnerSay((string)(a++));
     llOwnerSay((string)(a++));
</pre>
</lsl>
<pre>//block statement
<lsl>
//block statement
integer a = 0;
integer a = 0;
integer b = 10;
integer b = 10;
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     ++a;
     ++a;
}
}
</pre>
</lsl>
<pre>//null statement
<lsl>
//null statement
integer a = 0;
integer a = 0;
integer b = 10;
integer b = 10;
while(a++ < b);
while(a++ < b);
</pre>
</lsl>
|helpers
|helpers
|also_header
|also_header

Revision as of 19:14, 31 December 2007

while( conditionloop

•  condition If this executes as true then loop is executed.
•  loop Can be either a single statement, a block statement, or a null statement.


Any of the statements can be null statements.

Specification

Conditional Types
Type Condition
integer True if it is not zero.
float True if it is not zero.[1]
string True if its length is not zero.
key True only if it is a valid key and not NULL_KEY.
vector True if the vector is not ZERO_VECTOR.
rotation True if the rotation is not ZERO_ROTATION.
list True if the length is not zero. Note that correct behavior is only seen with Mono-compiled scripts; LSO-compiled scripts incorrectly resolve to false if the list is non-empty: BUG-230728

Examples

<lsl> //single statement integer a = 0; integer b = 10; while(a < b)

   llOwnerSay((string)(a++));

</lsl> <lsl> //block statement integer a = 0; integer b = 10; while(a < b) {

   llOwnerSay((string)a);
   ++a;

} </lsl> <lsl> //null statement integer a = 0; integer b = 10; while(a++ < b); </lsl>

Notes

A do-while loop is faster than a while loop or a for loop.


Deep Notes

Search JIRA for related Issues

Footnotes

  1. ^ The OpenSim LSL compiler will not do this implicitly. You will need to use an explicit check.