Difference between revisions of "While"

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|spec
 
|spec
 
|caveats
 
|caveats
|examples=<lsl>
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|examples=<source lang="lsl2">
 
//single statement
 
//single statement
 
integer a = 0;
 
integer a = 0;
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while(a < b)
 
while(a < b)
 
     llOwnerSay((string)(a++));
 
     llOwnerSay((string)(a++));
</lsl>
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</source>
<lsl>
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<source lang="lsl2">
 
//block statement
 
//block statement
 
integer a = 0;
 
integer a = 0;
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     ++a;
 
     ++a;
 
}
 
}
</lsl>
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</source>
<lsl>
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<source lang="lsl2">
 
//null statement
 
//null statement
 
integer a = 0;
 
integer a = 0;
 
integer b = 10;
 
integer b = 10;
 
while(a++ < b);
 
while(a++ < b);
</lsl>
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</source>
 
|helpers
 
|helpers
 
|also_header
 
|also_header

Latest revision as of 01:52, 22 January 2015

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.

Examples

//single statement
integer a = 0;
integer b = 10;
while(a < b)
    llOwnerSay((string)(a++));
//block statement
integer a = 0;
integer b = 10;
while(a < b)
{
    llOwnerSay((string)a);
    ++a;
}
//null statement
integer a = 0;
integer b = 10;
while(a++ < b);

Notes

A do-while loop is faster than a while loop or a for loop in LSO. (see discussion)


See Also

Articles

KBcaution.png Important: Please read this intro of how to iterate over a list in LSL.

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.