Re: Comparing Two Numbers

Use numify to see what's under the hood:

print version->parse($installed)->numify, '<=>', version->parse($wante
+d)->numify, "\n";
# Output: 450.570<=>450.080082
[download]

Use 450.57.0 to get what you expect. Comparing dotted versions with different number of elements is tricky.

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

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Re^2: Comparing Two Numbers by abs52 (Novice) on Jan 05, 2021 at 10:03 UTC
Thanks, unfortunately i am comparing driver version, meaning that the numbers needs to correct. As i am using the code to determine if a driver is installed and or should we be installing a new version	[reply]
Re^3: Comparing Two Numbers by choroba (Cardinal) on Jan 05, 2021 at 10:07 UTC
What driver? If it's a Perl module, it got versioning wrong. If it's not, it might use a different versioning rules, which means you can't use Perl's version. `map{substr$_->[0],$_->[1]\|\|0,1}[\\|\|{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^ARGV,3]`	[reply] [d/l]
Re^4: Comparing Two Numbers by abs52 (Novice) on Jan 05, 2021 at 10:15 UTC
Its a perl script that i wrote that runs on boot up for a linux machine. It compares the current running Nvidia driver and check against a list if the current nvidia card should be running a new dirver and if it should be update it Its been working find up to now but this is the first time we have had a driver number with more two decimals	[reply]
Re^3: Comparing Two Numbers by Ratazong (Monsignor) on Jan 05, 2021 at 11:07 UTC
Hello abs52 You could check if your two version strings both contain two dots - and append a ".0" if not (as suggested by choroba). And then use the possibly modified versions for comparision, not the original ones. HTH, Rata	[reply]