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Purpose of Unions in C and C++

...t that the structure members be placed without arbitrary padding. If code tests for structure-member placement or structure size, code should work if accesses are done directly through the union, but a strict reading of the Standard would indicate that taking the address of a union or struct member...
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Where in memory are my variables stored in C?

...a, putting it in its own read-only non-exec segment, separate from code (I tested on GNU/Linux). This means static constants like string literals are no longer possible candidates for Spectre / ROP gadgets because they're in non-executable pages. – Peter Cordes ...
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Why can't I use the 'await' operator within the body of a lock statement?

... impossible to implement -- the fact that you implemented it yourself is a testament to that fact. Rather, it is an incredibly bad idea and so we don't allow it, so as to protect you from making this mistake. call to Monitor.Exit within ExitDisposable.Dispose seems to block indefinitely (most of...
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ASP.NET MVC Html.DropDownList SelectedValue

...s MVC 3 post does not work but it is a good start. I will fix it. I have tested this code and it works in MVC 3 Razor C# This code uses the ViewModel pattern to populate a property that returns a List<SelectListItem>. The Model class public class Product { public string Name { get; se...
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How to remove from a map while iterating it?

...ing pointed to by next_it or successors. A totally cleared list/map can be tested against as well. – Larswad Nov 21 '17 at 15:13 ...
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C++ static virtual members?

...tic() { return "YourObject"; } }; Let's add some code to test: char* GetObjectClassName(Object* object) { return object->GetClassName(); } int main() { MyObject myObject; YourObject yourObject; printf("%s\n", MyObject::GetClassNameStatic()); printf("%s\n",...
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Automatically create an Enum based on values in a database lookup table?

...agree. But remember mistyped strings will be caught at runtime. Just add a test case to cover all the enum members. – Autodidact Apr 7 '09 at 14:38 1 ...
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Is it possible to read from a InputStream with a timeout?

...228) at java.util.concurrent.FutureTask.get(FutureTask.java:91) at test.InputStreamWithTimeoutTest.main(InputStreamWithTimeoutTest.java:74) I can catch the TimeoutException and do whatever cleanup I want. share ...
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Is there a way to provide named parameters in a function call in JavaScript?

...rom having no value at all). That means you cannot use arguments.length to test how many arguments have been passed. Instead of having a function creating the wrapper, you could also have a function which accepts a function and various values as arguments, such as call(func, a, b, {posArg: ... ...
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Join vs. sub-query

... can you prove any of your points with documentation reference or test results? – Uğur Gümüşhan Nov 16 '11 at 10:08 ...