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Combining C++ and C - how does #ifdef __cplusplus work?

... is described as a linkage issue but that is not quite true - you will get errors from both the compiler and the linker. The compiler errors will be if you try to use C++ features of prototype declaration such as overloading. The linker errors will occur later because your function will appear to...
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How to check null objects in jQuery

...@AurelianoBuendia, you have used lenght instead of length; it's a spelling error. – Sam Aug 10 '12 at 8:28 4 ...
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How to manually set an authenticated user in Spring Security / SpringMVC

... MessageResolver messageResolvable = new MessageBuilder().error() .source(UserRegistrationFormBean.PROPERTYNAME_EMAIL_ADDRESS) .code("userRegistration.emailAddress.not.unique") ...
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How can I select and upload multiple files with HTML and PHP, using HTTP POST?

...ze: <?= $myFile["size"][$i] ?><br> Error: <?= $myFile["error"][$i] ?><br> </p> <?php } } ?> </body> </html> Here's what it looks like in C...
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Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C

...ve didn't work for -O2/-O3 (ld blew up with some crazy symbol redefinition error), so I don't believe the generated code is tuned for my microarchitecture. There may be a way to do this slightly faster with SSE. I have no idea how, but with fast replication, packed bitwise AND, and swizzling instru...
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Calling parent class __init__ with multiple inheritance, what's the right way?

... gives you more consistancy and make eventual refactorings easier and less error-prone. An example of how to do that: class C(A, B): def __init__(self): print("entering c") for base_class in C.__bases__: # (A, B) base_class.__init__(self) print("leaving c"...
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How can I get nth element from a list?

...ype is acceptable as idiomatic Haskell. [1,2,3]!!6 will give you a runtime error. It could very easily be avoided if !! had the type [a] -> Int -> Maybe a. The very reason we have Haskell is to avoid such runtime errors! – worldsayshi Apr 14 '15 at 21:08 ...
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How do I get the 'clear' command in Cygwin?

I installed Cygwin, choosing a fairly minimal set of packages. 10 Answers 10 ...
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How to achieve function overloading in C?

...f you leave it off and the type doesn't match, it will cause a compilation error.) The way this is useful for function overloading is that it can be inserted by the C preprocessor and choose a result expression based on the type of the arguments passed to the controlling macro. So (example from the...
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Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe

I get the following error when using a primitive attribute in my grails domain object: 12 Answers ...