Difference between revisions of "While"
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m (<lsl> examples) |
Lady Sumoku (talk | contribs) m (Replaced old <LSL> block with <source lang="lsl2">) |
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{{LSL_Conditional | {{LSL_Conditional | ||
|statement=while | |statement=while | ||
| Line 10: | Line 9: | ||
|spec | |spec | ||
|caveats | |caveats | ||
|examples=< | |examples=<source lang="lsl2"> | ||
//single statement | //single statement | ||
integer a = 0; | integer a = 0; | ||
| Line 16: | Line 15: | ||
while(a < b) | while(a < b) | ||
llOwnerSay((string)(a++)); | llOwnerSay((string)(a++)); | ||
</ | </source> | ||
< | <source lang="lsl2"> | ||
//block statement | //block statement | ||
integer a = 0; | integer a = 0; | ||
| Line 26: | Line 25: | ||
++a; | ++a; | ||
} | } | ||
</ | </source> | ||
< | <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); | ||
</ | </source> | ||
|helpers | |helpers | ||
|also_header | |also_header | ||
|also_functions | |also_functions | ||
|also_tests | |also_tests | ||
|also_articles | |also_articles= | ||
{{LSL Tip|Please read [[User:Kireji_Haiku/How_to_deal_with_lists_in_LSL|this intro of how to iterate over a list in LSL]].}} | |||
|also_footer | |also_footer | ||
|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. (see discussion) | ||
|mode | |mode | ||
|deprecated | |deprecated | ||
Latest revision as of 00:52, 22 January 2015
| 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
//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);
See Also
Deep Notes
Footnotes
- ^ The OpenSim LSL compiler will not do this implicitly. You will need to use an explicit check.