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Comma in C/C++ macro
... and >=, macro expansion can't ignore commas inside angle brackets like it does within parentheses. (This is also a problem for square brackets and braces, even though those usually occur as balanced pairs.) You can enclose the macro argument in parentheses:
FOO((std::map<int, int>), map...
Generating an Excel file in ASP.NET [closed]
...ed on database data. While there are several ways of doing this, each has its own drawbacks. How would you return the data? I'm looking for something that's as clean and straightforward as possible.
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Using getopts to process long and short command line options
...nsidered:
Bash builtin getopts. This does not support long option names with the double-dash prefix. It only supports single-character options.
BSD UNIX implementation of standalone getopt command (which is what MacOS uses). This does not support long options either.
GNU implementation of standal...
How to disable GCC warnings for a few lines of code
In Visual C++, it's possible to use #pragma warning (disable: ...) . Also I found that in GCC you can override per file compiler flags . How can I do this for "next line", or with push/pop semantics around areas of code using GCC?
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Difference between app.use and app.get in express.js
...ode.js, and I can't figure out the difference between app.use and app.get. It seems like you can use both of them to send information. For example:
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Getting the class name from a static method in Java
...rder to support refactoring correctly (rename class), then you should use either:
MyClass.class.getName(); // full name with package
or (thanks to @James Van Huis):
MyClass.class.getSimpleName(); // class name and no more
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How to uninstall a Windows Service when there is no executable for it left on the system?
How do I uninstall a Windows Service when there is no executable for it left on the system? I can not run installutil -u since there is not executable left on the system. I can still see an entry for the service in the Services console.
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SQL is null and = null [duplicate]
...considered as false for the purposes of a where clause (strictly speaking, it's "not true", rather than "false", but the effect is the same).
The reasoning is that a null means "unknown", so the result of any comparison to a null is also "unknown". So you'll get no hit on rows by coding where my_co...
What are the uses of “using” in C#?
...or the using statement is to ensure that the object is disposed as soon as it goes out of scope, and it doesn't require explicit code to ensure that this happens.
As in Understanding the 'using' statement in C# (codeproject) and Using objects that implement IDisposable (microsoft), the C# compiler ...
How should I escape strings in JSON?
...fields? Should I use something like Apache Commons Lang's StringEscapeUtilities.escapeHtml , StringEscapeUtilities.escapeXml , or should I use java.net.URLEncoder ?
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