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Printing hexadecimal characters in C

...lution using a cast to unsigned char is one instruction smaller in gcc4.6 for x86-64... – lvella Nov 9 '11 at 15:20 ...
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What characters are allowed in an email address?

... See RFC 5322: Internet Message Format and, to a lesser extent, RFC 5321: Simple Mail Transfer Protocol. RFC 822 also covers email addresses, but it deals mostly with its structure: addr-spec = local-part "@" domain ; global address local-...
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How to get the nth element of a python list or a default if not available

I'm looking for an equivalent in python of dictionary.get(key, default) for lists. Is there any one liner idiom to get the nth element of a list or a default value if not available? ...
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How to check whether an array is empty using PHP?

players will either be empty or a comma separated list (or a single value). What is the easiest way to check if it's empty? I'm assuming I can do so as soon as I fetch the $gameresult array into $gamerow ? In this case it would probably be more efficient to skip exploding the $playerlist if it...
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How do I check if an integer is even or odd? [closed]

How can I check if a given number is even or odd in C? 31 Answers 31 ...
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SHA1 vs md5 vs SHA256: which to use for a PHP login?

I'm making a php login, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt? ...
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Check whether a value is a number in JavaScript or jQuery [duplicate]

I want to check misCharge is number or not. Is there any method or easy way in jQuery or JavaScript to do this? 3 Answers...
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Is Javascript compiled or an interpreted language? [closed]

Can Javascript be called a pure interpreted language? Or does it also have some compiled flavor to it? Could someone guide at the reasons behind both the things whichever being true. ...
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Check cell for a specific letter or set of letters

In a Google Spreadsheet, I want to use a formula that will output a certain text or number if a certain cell contains certain letters. ...
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Python if-else short-hand [duplicate]

...most readable way is x = 10 if a > b else 11 but you can use and and or, too: x = a > b and 10 or 11 The "Zen of Python" says that "readability counts", though, so go for the first way. Also, the and-or trick will fail if you put a variable instead of 10 and it evaluates to False. Howe...