Difference between revisions of "While"
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(Clarified the speed note, as per the notes in do-while.) |
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|notes=A {{LSLG|do-while}} loop is faster than a while loop or a {{LSLG|for}} loop. | |notes=A {{LSLG|do-while}} loop is faster than a while loop or a {{LSLG|for}} loop in LSO. | ||
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Revision as of 20:08, 16 November 2011
LSL Portal | Functions | Events | Types | Operators | Constants | Flow Control | Script Library | Categorized Library | Tutorials |
while( condition ) loop
• | 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
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>
Deep Notes
Footnotes
- ^ The OpenSim LSL compiler will not do this implicitly. You will need to use an explicit check.