VersionCheck function - Revision history

Afrow UK: /* Description */

2006-05-01T18:42:11Z

Description

â† Older revision		Revision as of 18:42, 1 May 2006
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	== Description ==		== Description ==
			<p style="border: 1px solid #F00; padding: 5px; font-weight: bold">Please note that this function has been superseded by the [[VersionCompare]] function.</p>

	Hendri Adriaens aka [[user:Smile2Me \| Smile2Me]] provided this [http://forums.winamp.com/showthread.php?s=&threadid=82563&highlight=compare in response to a question from a forum user].		Hendri Adriaens aka [[user:Smile2Me \| Smile2Me]] provided this [http://forums.winamp.com/showthread.php?s=&threadid=82563&highlight=compare in response to a question from a forum user].

Deguix: Dotted Comparison Script moved to VersionCheck function

2005-12-03T16:41:58Z

Dotted Comparison Script moved to VersionCheck function

â† Older revision

Revision as of 16:41, 3 December 2005

ConversionBot: Adding new author and category links.

2005-06-24T12:08:25Z

Adding new author and category links.

â† Older revision		Revision as of 12:08, 24 June 2005
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	{~~\|align=right~~		{{PageAuthor\|sunjammer}}
	~~\|<small>Author: [[~~{~~{ns:2}}:sunjammer~~\|sunjammer~~]] ([[{{ns:3}}:sunjammer\|talk]], [[{{ns:-1}~~}~~:Contributions/sunjammer\|contrib]])</small>~~
	\|}
	~~<br style="clear:both;">~~
	== Description ==		== Description ==
	Hendri Adriaens aka [[user:Smile2Me \| Smile2Me]] provided this [http://forums.winamp.com/showthread.php?s=&threadid=82563&highlight=compare in response to a question from a forum user].		Hendri Adriaens aka [[user:Smile2Me \| Smile2Me]] provided this [http://forums.winamp.com/showthread.php?s=&threadid=82563&highlight=compare in response to a question from a forum user].
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	FunctionEnd</highlight-nsis>		FunctionEnd</highlight-nsis>

	[[~~{{ns:14}}~~:Version Manipulation Functions]]		[[Category:Version Manipulation Functions]]

ConversionBot: Added category links.

2005-04-30T20:45:49Z

Added category links.

â† Older revision		Revision as of 20:45, 30 April 2005
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	Exch $0		Exch $0
	FunctionEnd</highlight-nsis>		FunctionEnd</highlight-nsis>

			[[{{ns:14}}:Version Manipulation Functions]]

ConversionBot: Updated author links.

2005-04-30T02:55:38Z

Updated author links.

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 == Description ==
 Hendri Adriaens aka [[user:Smile2Me | Smile2Me]] provided this [http://forums.winamp.com/showthread.php?s=&threadid=82563&highlight=compare in response to a question from a forum user].
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    Exch $0
 FunctionEnd</highlight-nsis>

ConversionBot: Updated author and download links, and changed format of some pages.

2005-04-23T12:17:28Z

Updated author and download links, and changed format of some pages.

â† Older revision		Revision as of 12:17, 23 April 2005
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	FunctionEnd</highlight-nsis>		FunctionEnd</highlight-nsis>

	Page author: sunjammer		Page author: [[User:sunjammer\|sunjammer]]

ConversionBot: Wikipedia python library

2005-04-09T19:08:25Z

Wikipedia python library

New page

== Description ==
Hendri Adriaens aka [[user:Smile2Me | Smile2Me]] provided this [http://forums.winamp.com/showthread.php?s=&threadid=82563&highlight=compare in response to a question from a forum user].

Basically it contains a small function called VersionCheck which correctly compares two dotted notation version strings (e.g. 3.5 and 3.5.1.4) and indicates which of the two is the higher version.

Hendri described it as "a function that compares 2 version numbers no matter what their structure is (eg.: 3.5 and 2.4.6.1). [snip] ... the source is a bit messy, but anyway, it works (I tested it a few times and I think it's OK, just test it yourself...)".

== The Script ==
<highlight-nsis>; function versioncheck
; by Hendri Adriaens

; HendriAdriaens@hotmail.com

outfile versioncheck.exe
name versioncheck

Section
Push "3.5"
Push "3.5.1.4"
Call VersionCheck
Pop $0
MessageBox MB_OK "Number $0 was newer"
; output 1 - if number 1 is newer
; 2 - if number 2 is newer
; 0 - if it is the same verion
; output 2 in case above
SectionEnd

Function VersionCheck
Exch $0 ;second versionnumber
Exch
Exch $1 ;first versionnumber
Push $R0 ;counter for $0
Push $R1 ;counter for $1
Push $3 ;temp char
Push $4 ;temp string for $0
Push $5 ;temp string for $1
StrCpy $R0 "-1"
StrCpy $R1 "-1"
Start:
StrCpy $4 ""
DotLoop0:
IntOp $R0 $R0 + 1
StrCpy $3 $0 1 $R0
StrCmp $3 "" DotFound0
StrCmp $3 "." DotFound0
StrCpy $4 $4$3
Goto DotLoop0
DotFound0:
StrCpy $5 ""
DotLoop1:
IntOp $R1 $R1 + 1
StrCpy $3 $1 1 $R1
StrCmp $3 "" DotFound1
StrCmp $3 "." DotFound1
StrCpy $5 $5$3
Goto DotLoop1
DotFound1:
Strcmp $4 "" 0 Not4
StrCmp $5 "" Equal
Goto Ver2Less
Not4:
StrCmp $5 "" Ver2More
IntCmp $4 $5 Start Ver2Less Ver2More
Equal:
StrCpy $0 "0"
Goto Finish
Ver2Less:
StrCpy $0 "1"
Goto Finish
Ver2More:
StrCpy $0 "2"
Finish:
Pop $5
Pop $4
Pop $3
Pop $R1
Pop $R0
Pop $1
Exch $0
FunctionEnd</highlight-nsis>

Page author: sunjammer