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Can a pointer to base point to an array of derived objects?
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You cannot index like that. You have allocated an array of Rectangles and stored a pointer to the first in shapes. When you do shapes[1] you're dereferencing (shapes + 1). This will not give you a pointer to the next Rectangle, but a pointer to what would be the...
How enumerate all classes with custom class attribute?
...s to readability and maintainability. I challenge the statement that they allocate the fewest objects and performance will be faster (especially without empirical proof); you've basically written the Select extension method, and the compiler will generate a state machine just as it would if you cal...
Can I write into the console in a unit test? If yes, why doesn't the console window open?
...y open a console window, using P/Invoke as sinni800 says. From reading the AllocConsole documentation, it appears that the function will reset stdin and stdout handles to point to the new console window. (I'm not 100% sure about that; it seems kind of wrong to me if I've already redirected stdout fo...
Will code in a Finally statement fire if I return a value in a Try block?
...t. Thus, the only place a CER should be relevant is for resources that are allocated outside of the process, e.g., unmanaged handles.
Typically, unmanaged code is wrapped by some managed class before being consumed by user code. The managed wrapper class will typically make use of a SafeHandle to w...
Edit and Continue: “Changes are not allowed when…”
...y match the original version is unchecked.
Check Enable Windows debug heap allocator (Native only) [VS Community 2017]
Are you using Microsoft Fakes? It inhibits Edit & Continue.
Kill all the *.vshost.exe instances by selecting End Process Tree in the Task Manager. VS will regenerate a correct i...
How should equals and hashcode be implemented when using JPA and Hibernate
...y resulting in errors and / or data corruption) because your entity may be allocated to a bucket not matching its current hashCode().
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system(“pause”); - Why is it wrong?
...summary, it has to pause the programs execution and make a system call and allocate unnecessary resources when you could be using something as simple as cin.get(). People use System("PAUSE") because they want the program to wait until they hit enter to they can see their output. If you want a progra...
What does DIM stand for in Visual Basic and BASIC?
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It stands for Dimension, but is generally read as "Create Variable," or "Allocate Space for This."
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Initializing a list to a known number of elements in Python [duplicate]
...at there are other legitimate cases than optimizations for the wish to pre-allocate an array. It could be the code that uses it doesn't add elements, just replaces existing ones, so it's more like an array than a list.
– Lasse V. Karlsen
Sep 10 '09 at 8:08
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TypeScript typed array usage
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it does not fix the length, but rather should preallocate the array
– Sebastian
Mar 28 '13 at 10:08
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