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No visible cause for “Unexpected token ILLEGAL”

...rs. It seems the tool uses that character to control word-wrapping on long strings. UPDATE 2013-01-07 After the latest jsfiddle update, it's now showing the character as a red dot like codepen does. Apparently, it's also not inserting U+200B characters on its own anymore, so this problem should be ...
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Explain the use of a bit vector for determining if all characters are unique

...it in your code states whether the character with bit's index was found in string or not. You could use bit vector for the same reason instead of int. There are two differences between them: Size. int has fixed size, usually 4 bytes which means 8*4=32 bits (flags). Bit vector usually can be of dif...
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Why is MySQL's default collation latin1_swedish_ci?

...general_ci. Compared to latin1_general_ci it has support for a variety of extra characters used in European languages. So it’s a best choice if you don’t know what language you will be using, if you are constrained to use only single byte character sets. ...
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What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack

...emonstration of the double ellipsis: #include <cstdio> #include <string> template< typename T > T const &printf_helper( T const &x ) { return x; } char const *printf_helper( std::string const &x ) { return x.c_str(); } template< typename ... Req, typename...
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Regex to remove all (non numeric OR period)

... This should do it: string s = "joe ($3,004.50)"; s = Regex.Replace(s, "[^0-9.]", ""); share | improve this answer | f...
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is vs typeof

... +1: In the past I wondered why the C# compiler didn't compile typeof(string).TypeHandle to the ldtoken CIL instruction, but it looks like the CLR takes care of it in the JIT. It still takes a few extra opcodes but it's a more generalized application of the optimization. –...
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How to compare binary files to check if they are the same?

...es that also contain some ascii text. Many do, at least begin with a magic string. – Felix Dombek Jul 12 '19 at 11:20 ...
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Why isn't sizeof for a struct equal to the sum of sizeof of each member?

...essor, too. Therefore, most compilers will pad the structure (as if with extra, invisible fields) like this: +-------+-------+-------+-------+ | a | pad1 | +-------+-------+-------+-------+ | b | pad2 | +-------+-------+-------+-------+ | c ...
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How should one use std::optional?

...plest example I can think of: std::optional<int> try_parse_int(std::string s) { //try to parse an int from the given string, //and return "nothing" if you fail } The same thing might be accomplished with a reference argument instead (as in the following signature), but using std::op...
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List of standard lengths for database fields

...those were over 25, and they were all cases where data imports resulted in extra junk winding up in that field.) Last name was similar to first name. Email addresses maxed out at 62 characters. Most of the longer ones were actually lists of email addresses separated by semicolons. Street address ma...