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How do you append an int to a string in C++? [duplicate]

...; text += oss.str(); Finally, the Boost libraries provide boost::lexical_cast, which wraps around the stringstream conversion with a syntax like the built-in type casts. #include <boost/lexical_cast.hpp> text += boost::lexical_cast<std::string>(i); This also works the other way aro...
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Lambda capture as const reference?

... In c++14 using static_cast / const_cast: [&best_string = static_cast<const std::string&>(best_string)](const string& s) { best_string = s; // fails }; DEMO In c++17 using std::as_const: [&best_string = std::as_cons...
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How to use greater than operator with date?

..._date with single quote causing it to become string, use backtick instead SELECT * FROM `la_schedule` WHERE `start_date` > '2012-11-18'; SQLFiddle Demo share | improve this answer |...
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What's the difference between IEquatable and just overriding Object.Equals()?

...it as much but the IEquatable<T> implementation does let you avoid a cast from System.Object which can make a difference if it's called frequently. As noted on Jared Parson's blog though, you still must implement the Object overrides. ...
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How to drop columns by name in a data frame

..."z","u"))] x y 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 Or, much simpler, use the select argument of the subset function : you can then use the - operator directly on a vector of column names, and you can even omit the quotes around the names ! R> subset(df, select=-c(z,u)) x y 1 1 2 2 2 3 3 3 4 4 4 ...
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Custom global Application class breaks with “android.app.Application cannot be cast to”

...y. I have this added to my manifest. However, it is still giving me a ClassCastException – Somu Jul 31 '15 at 19:45 14 ...
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Site stopped working in asp.net System.Web.WebPages.Razor.Configuration.HostSection cannot be cast t

...st in case ian's answer wasn't enough (and the assemblies correct, but the casting is still wrong) chances are you didn't update the <configSections> to reflect the new assembly yet. make sure the assembly portion also references version 3.0 of the System.Web.WebPages.Razor library. e.g. <...
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How to convert / cast long to String?

I just created sample BB app, which can allow to choose the date. 8 Answers 8 ...
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The type or namespace name 'Objects' does not exist in the namespace 'System.Data'

...ontext.tt and be nested under your edmx file in Solution Explorer. You can select the templates in Solution Explorer and press the Del key to delete them. Note: In Web Site projects the templates will not be nested under your edmx file, but listed alongside it in Solution Explorer. Note: In VB.N...
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Best way to get identity of inserted row?

...rator error', GETDATE()); --Display the result set of the table variable. SELECT NewScrapReasonID, Name, ModifiedDate FROM @MyTableVar; --Display the result set of the table. SELECT ScrapReasonID, Name, ModifiedDate FROM Production.ScrapReason; GO ...