Talk:Float2String - Revision history

Haravikk Mistral: /* More code than needed? */

2012-05-21T22:40:54Z

More code than needed?

← Older revision		Revision as of 15:40, 21 May 2012
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	return (string)num;		return (string)num;
	}</lsl><br/>-- '''[[User:Haravikk_Mistral\|Haravikk]]''' <sup><small>([[User_talk:Haravikk_Mistral\|talk]]\|[[Special:Contributions/Haravikk_Mistral\|contribs]])</small></sup> 22:01, 18 October 2010 (UTC)		}</lsl><br/>-- '''[[User:Haravikk_Mistral\|Haravikk]]''' <sup><small>([[User_talk:Haravikk_Mistral\|talk]]\|[[Special:Contributions/Haravikk_Mistral\|contribs]])</small></sup> 22:01, 18 October 2010 (UTC)

			:I should probably note also that the following is a tiny bit more efficient (less returns, which are fairly byte code heavy):
			<lsl>string Float2String ( float num, integer places, integer rnd) {
			//allows string output of a float in a tidy text format
			//rnd (rounding) should be set to TRUE for rounding, FALSE for no rounding

			string str = "";
			if (rnd) {
			float f = llPow( 10.0, places );
			integer i = llRound(num * f); // Removed llFabs() due to later change
			str = (string)( (integer)(i / f) ) + "." + llGetSubString( (string)i, -places, -1); // Removed if (num < 0.0) as (string)((integer)i / f)) provides negative just fine
			} else if (!places) {
			str = (string)((integer)num );
			} else if if ( (places = (places - 7 - (places < 1) ) ) & 0x80000000) {
			str = llGetSubString((string)num, 0, places);
			} else {
			str = (string)num;
			}
			return str;
			}</lsl>
			:I can't help but feel that there must be a clever way to factor out one of the two <code>llGetSubString()</code> calls, to save on function-calling byte code, but I can't think of it.<br/>-- '''[[User:Haravikk_Mistral\|Haravikk]]''' <sup><small>([[User_talk:Haravikk_Mistral\|talk]]\|[[Special:Contributions/Haravikk_Mistral\|contribs]])</small></sup> 15:40, 21 May 2012 (PDT)

Haravikk Mistral: /* More code than needed? */

2010-10-18T22:04:33Z

More code than needed?

← Older revision		Revision as of 15:04, 18 October 2010
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	float f = llPow( 10.0, places );		float f = llPow( 10.0, places );
	integer i = llRound(num * f); // Removed llFabs() due to later change		integer i = llRound(num * f); // Removed llFabs() due to later change
	~~string s = (string)i; // number of 0s is (value of max places - 1 ) // Remove "00000" as it...well it doesn't do anything at all due to use of negative indices in llGetSubString?~~		return (string)( (integer)(i / f) ) + "." + llGetSubString( (string)i, -places, -1); // Removed if (num < 0.0) as (string)((integer)i / f)) provides negative just fine
	return (string)( (integer)(i / f) ) + "." + llGetSubString( s, -places, -1); // Removed if (num < 0.0) as (string)((integer)i / f)) provides negative just fine
	}		}
	if (!places)		if (!places)

Haravikk Mistral: /* More code than needed? */ new section

2010-10-18T22:01:20Z

More code than needed?: new section

← Older revision		Revision as of 15:01, 18 October 2010
Line 35:		Line 35:

	:I think I've fixed all but the last. -- '''[[User:Strife_Onizuka\|Strife]]''' <sup><small>([[User talk:Strife_Onizuka\|talk]]\|[[Special:Contributions/Strife_Onizuka\|contribs]])</small></sup> 20:11, 8 October 2008 (PDT)		:I think I've fixed all but the last. -- '''[[User:Strife_Onizuka\|Strife]]''' <sup><small>([[User talk:Strife_Onizuka\|talk]]\|[[Special:Contributions/Strife_Onizuka\|contribs]])</small></sup> 20:11, 8 October 2008 (PDT)

			== More code than needed? ==

			Forgive me if I'm wrong, but it looks to me as if the "00000" prefix for <code>s</code> and the call to [[llFabs]](), and subsequent <code>if (neg < 0.0)</code> are extraneous? In all my tests it seems the code functions just fine without any of them, am I missing something?

			Like-so:
			<lsl>string Float2String ( float num, integer places, integer rnd) {
			//allows string output of a float in a tidy text format
			//rnd (rounding) should be set to TRUE for rounding, FALSE for no rounding

			if (rnd) {
			float f = llPow( 10.0, places );
			integer i = llRound(num * f); // Removed llFabs() due to later change
			string s = (string)i; // number of 0s is (value of max places - 1 ) // Remove "00000" as it...well it doesn't do anything at all due to use of negative indices in llGetSubString?
			return (string)( (integer)(i / f) ) + "." + llGetSubString( s, -places, -1); // Removed if (num < 0.0) as (string)((integer)i / f)) provides negative just fine
			}
			if (!places)
			return (string)((integer)num );
			if ( (places = (places - 7 - (places < 1) ) ) & 0x80000000)
			return llGetSubString((string)num, 0, places);
			return (string)num;
			}</lsl><br/>-- '''[[User:Haravikk_Mistral\|Haravikk]]''' <sup><small>([[User_talk:Haravikk_Mistral\|talk]]\|[[Special:Contributions/Haravikk_Mistral\|contribs]])</small></sup> 22:01, 18 October 2010 (UTC)

Strife Onizuka at 03:11, 9 October 2008

2008-10-09T03:11:29Z

← Older revision		Revision as of 20:11, 8 October 2008
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	--[[User:Rhian Svenska\|Rhian Svenska]] 16:11, 8 October 2008 (PDT)		--[[User:Rhian Svenska\|Rhian Svenska]] 16:11, 8 October 2008 (PDT)

			:I think I've fixed all but the last. -- '''[[User:Strife_Onizuka\|Strife]]''' <sup><small>([[User talk:Strife_Onizuka\|talk]]\|[[Special:Contributions/Strife_Onizuka\|contribs]])</small></sup> 20:11, 8 October 2008 (PDT)

Rhian Svenska: New section: Errors with posted code

2008-10-08T23:11:25Z

New section: Errors with posted code

← Older revision		Revision as of 16:11, 8 October 2008
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	Garmin Kawaguichi		Garmin Kawaguichi

			== Errors with posted code ==

			#Code gives syntax error when copying/pasting code. (superfluous "else"?)

			#Float2String(-123.456,0,FALSE) yields "--123". Should be "-123".

			#Float2String(-123.456,0,TRUE) yields "-123.00000123". Should be "-123"

			--[[User:Rhian Svenska\|Rhian Svenska]] 16:11, 8 October 2008 (PDT)

Garmin Kawaguichi: New page: Please be kind to totally review your text and code; examples are false, code is insufficiently implemented. Examples: string myFormattedFloat = Float2String(-7.1373699,3,"Round"); //roun...

2008-09-18T13:12:38Z

New page: Please be kind to totally review your text and code; examples are false, code is insufficiently implemented. Examples: string myFormattedFloat = Float2String(-7.1373699,3,"Round"); //roun...

New page

Please be kind to totally review your text and code; examples are false, code is insufficiently implemented.

Examples:
string myFormattedFloat = Float2String(-7.1373699,3,"Round");
//rounded returns -7.14

string myFormattedFloat = Float2String(-7.1373699,3,"");
//not rounded returns -7.13
The real result is -7.137 for the both

Code:
if (places == 0)
{
return neg + (string) ((integer)num );
}
This is true if you want to truncate it, but false if you want to round it.

Other:
To round it's written : "should be set to "Rounded" for Yes" in the expanations,
//rnd (rounding) should be set to "Rounded" for Yes, "" for not rounded in a Comment Line
and Yes in the code.
Note that the wiki is first for people who want to study LSL.

Garmin Kawaguichi