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Comma in C/C++ macro

...his 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_var); The problem is then that the parameter remains parenthesized inside the macro expansion, which pr...
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How can I read a function's signature including default argument values?

... @Spi, you are calling inspect.getargspec on a module, not a function. – Mike Graham Apr 20 '10 at 17:36 ...
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How do I create a message box with “Yes”, “No” choices and a DialogResult?

...re documentation can be found at http://msdn.microsoft.com/en-us/library/ba2a6d06.aspx share | improve this answer | follow | ...
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Run function from the command line

...ral answer. I have a script defined multiple customer functions, and only call one depending on my need – xappppp Apr 15 '18 at 4:16 1 ...
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Circular (or cyclic) imports in Python

... There was a really good discussion on this over at comp.lang.python last year. It answers your question pretty thoroughly. Imports are pretty straightforward really. Just remember the following: 'import' and 'from xxx import yyy' ...
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Why do we need extern “C”{ #include } in C++?

... C and C++ are superficially similar, but each compiles into a very different set of code. When you include a header file with a C++ compiler, the compiler is expecting C++ code. If, however, it is a C header, then the compiler expects the data cont...
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How to get the return value from a thread in python?

...ram in param_list] The order will be maintained, and exiting the with will allow result collection. [f.result() for f in futures] – jayreed1 Jun 4 at 21:29 ...
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C# operator overload for `+=`?

...nguage has its own operators list, which are compiled in a special method calls, and CLR itself doesn't know anything about operators. So let's see what exactly stays behind the + and += operators. See this simple code: Decimal d = 10M; d = d + 10M; Console.WriteLine(d); Let view the IL-code for...
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Does python have an equivalent to Java Class.forName()?

...takes a fully qualified class name and returns the class, however you have all the pieces needed to build that, and you can connect them together. One bit of advice though: don't try to program in Java style when you're in python. If you can explain what is it that you're trying to do, maybe we ca...
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How to know what the 'errno' means?

When calling execl(...) , I get an errno=2 . What does it mean? How can I know the meaning of this errno ? 15 Answers ...