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Conveniently Declaring Compile-Time Strings in C++
Being able to create and manipulate strings during compile-time in C++ has several useful applications. Although it is possible to create compile-time strings in C++, the process is very cumbersome, as the string needs to be declared as a variadic sequence of characters, e.g.
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Modulo operation with negative numbers
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Should the compiler be smart enough and detect that an unsigned modulo another unsigned is always positive? Currently (well, GCC 5.2) the compiler seems to think that "%" returns an "int" in this case, rather than "unsigned" even when both operands are uint32_...
Java: how to convert HashMap to array
... answered Jul 7 '09 at 5:47
Landon KuhnLandon Kuhn
59.1k4141 gold badges9999 silver badges129129 bronze badges
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Git flow release branches and tags - with or without “v” prefix
...reference, but I prefer the version with the v, as Semver does it that way and I try to follow that specification as close as possible to get a sane versioning.
It also makes filtering for those Tags easier, as you can press v and then the TAB-key for autocompletion: This will list all the tags (a...
Best way to reverse a string
...had to write a string reverse function in C# 2.0 (i.e. LINQ not available) and came up with this:
48 Answers
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C++: Rounding up to the nearest multiple of a number
OK - I'm almost embarrassed posting this here (and I will delete if anyone votes to close) as it seems like a basic question.
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Maintain the aspect ratio of a div with CSS
...rce: w3.org, emphasis mine)
Padding-bottom values for other aspect ratios and 100% width :
aspect ratio | padding-bottom value
--------------|----------------------
16:9 | 56.25%
4:3 | 75%
3:2 | 66.66%
8:5 | 62.5%
Placing content in ...
List of encodings that Node.js supports
...ms compiling iconv I recommend iconv-lite. It does not require compilation and according to the dev is faster than iconv and it is used by popular tools like Grunt, Nodemailer, Yeoman, ...
– Telémako
Jan 13 '14 at 11:32
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What is the tilde (~) in the enum definition?
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~ is the unary one's complement operator -- it flips the bits of its operand.
~0 = 0xFFFFFFFF = -1
in two's complement arithmetic, ~x == -x-1
the ~ operator can be found in pretty much any language that borrowed syntax from C, including Objective-C/C++/C#/Java/Javascript.
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Check variable equality against a list of values
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You could use an array and indexOf:
if ([1,3,12].indexOf(foo) > -1)
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