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Printf width specifier to maintain precision of floating-point value
...t answer to print floating point numbers losslessly (such that they can be read
back in to exactly the same number, except NaN and Infinity):
If your type is float: use printf("%.9g", number).
If your type is double: use printf("%.17g", number).
Do NOT use %f, since that only specifies how many ...
What's the best CRLF (carriage return, line feed) handling strategy with Git?
...lder
relative/path/*.txt text eol=lf
There is a convenient collection of ready to use .gitattributes files for the most popular programming languages. It's useful to get you started.
Once you've created or adjusted your .gitattributes, you should perform a once-and-for-all line endings re-normali...
move_uploaded_file gives “failed to open stream: Permission denied” error
...nd tmp_file_upload now to be writable by the owner, if needed [Seems you already have this in place]. Mentioned in @Dmitry Teplyakov answer.
$ sudo chmod -R 0755 /var/www/html/mysite/images/
$ sudo chmod -R 0755 /var/www/html/mysite/tmp_file_upload/
For more details why this behavior happend, che...
Why can't the tag contain a tag inside it?
...itative documents we have for things like this, because they aren't fun to read. +1 for actually reading them, understanding them, and using them to answer questions.
– Stoutie
Oct 2 '12 at 17:18
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“tag already exists in the remote" error after recreating the git tag
...e who has the old tag—any clone of that central-server repository that already has the tag—could retain its old tag. So while this tells you how to do it, be really sure you want to do it. You'll need to get everyone who already has the "wrong" tag to delete their "wrong tag" and replace it wi...
How do HashTables deal with collisions?
...lues". Thanks, this is the point that is not always immediately clear when reading about mechanisms for storing values.
– mtone
Jun 28 '15 at 21:54
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Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
... a demonstration.
But first, I will reiterate that demonstration aside, re-read the other comments, since it's truth that CAPTCHA is pointless and not helpful, irrelevant of implementation....
But really, check out CAPTCHA Killer. You can upload a CAPTCHA image, and it will automatically, if not im...
What is the maximum size of a web browser's cookie's key?
...
The 4K limit you read about is for the entire cookie, including name, value, expiry date etc. If you want to support most browsers, I suggest keeping the name under 4000 bytes, and the overall cookie size under 4093 bytes.
One thing to be ca...
Passing parameters to a Bash function
...am ${age} years old."
}
You can also annotate arguments as @required or @readonly, create ...rest arguments, create arrays from sequential arguments (using e.g. string[4]) and optionally list the arguments in multiple lines:
function example {
args
: @required string firstName
: string ...
Implementing comparison operators via 'tuple' and 'tie', a good idea?
...nts, I sometimes tend to choose a std::pair , as all important stuff is already done for that datatype, like operator< for strict-weak-ordering.
The downsides though are the pretty much useless variable names. Even if I myself created that typedef , I won't remember 2 days later what first...