Difference between revisions of "ListCast"
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|func_desc=Iterates through the contents of a list, producing a resulting list whose contents are cast to a single type. Please refer to [[LlGetListEntryType|llGetListEntryType()]] for valid types. This function is useful for converting a list to a type which is more memory efficient, or to a type that you know you are going to access a lot (in order to remove extra casting later-on). | |func_desc=Iterates through the contents of a list, producing a resulting list whose contents are cast to a single type. Please refer to [[LlGetListEntryType|llGetListEntryType()]] for valid types. This function is useful for converting a list to a type which is more memory efficient, or to a type that you know you are going to access a lot (in order to remove extra casting later-on). | ||
|return_type=list | |return_type=list | ||
|return_text= | |return_text=whose contents are all one type. | ||
|p1_type=list|p1_name=mixedList|p1_desc=The list to cast, its contents may be anything. | |p1_type=list|p1_name=mixedList|p1_desc=The list to cast, its contents may be anything. | ||
|p2_type=integer|p2_name=type|p2_desc=The type of variable to cast all entries to. | |p2_type=integer|p2_name=type|p2_desc=The type of variable to cast all entries to. | ||
Revision as of 08:38, 20 January 2009
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Summary
Function: list listCast( list mixedList, integer type );
Iterates through the contents of a list, producing a resulting list whose contents are cast to a single type. Please refer to llGetListEntryType() for valid types. This function is useful for converting a list to a type which is more memory efficient, or to a type that you know you are going to access a lot (in order to remove extra casting later-on).
Returns a list whose contents are all one type.
| • list | mixedList | – | The list to cast, its contents may be anything. | |
| • integer | type | – | The type of variable to cast all entries to. |
Examples
Implementation
<lsl>list listCast(list mixedList, integer type) {
list result = []; integer x = mixedList != [];
if (type == TYPE_INTEGER)
while ((--x) >= 0)
result = [llList2Integer(mixedList, x)] + result;
else if (type == TYPE_FLOAT)
while ((--x) >= 0)
result = [llList2Float(mixedList, x)] + result;
else if (type == TYPE_VECTOR)
while ((--x) >= 0)
result = [(vector)llList2String(mixedList, x)] + result;
else if (type == TYPE_ROTATION)
while ((--x) >= 0)
result = [(rotation)llList2String(mixedList, x)] + result;
else if (type == TYPE_STRING)
while ((--x) >= 0)
result = [llList2String(mixedList, x)] + result;
else if (type == TYPE_KEY)
while ((--x) >= 0)
result = [llList2Key(mixedList, x)] + result;
else result = mixedList;
return result;
}</lsl>