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Proper use of 'yield return'
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If you use List instead of yield, you will need to allocation 1 million objects to memory (~190mb) and this simple example will take ~1400ms to run. However, if you use yield, you don't need to put all these temp objects to memory and you will get significantly faster algori...
How to get current memory usage in android?
...Runtime.freeMemory() returns 0 and Runtime.totalMemory() returns currently allocated memory only.
– artem
May 4 at 21:03
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Find size of object instance in bytes in c#
...t one thing to keep in mind with garbage collected/managed runtimes is the allocated size of an object can change throughout the lifetime of the program. For example, some generational garbage collectors (such as the Generational/Ulterior Reference Counting Hybrid collector) only need to store certa...
How do you copy the contents of an array to a std::vector in C++ without looping?
...ce() first on the two iterators to get the needed number of elements, then allocate just once.
– Drew Hall
Nov 4 '08 at 2:38
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C++ SFINAE examples?
... in C++, here is what you get with a modern compiler : error C2466: cannot allocate an array of constant size 0
– v.oddou
Jun 16 '14 at 1:31
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What is a handle in C++?
... the result of a new expression is a "normal" pointer. A managed object is allocated on the GC (managed) heap with a gcnew expression. The result will be a handle. You can't do pointer arithmetic on handles. You don't free handles. The GC will take care of them. Also, the GC is free to relocate obje...
What is the difference between exit and return? [duplicate]
...ogram after the processus stopped, hence it wouldn't make much difference: allocated memory will be freed, file ressource closed and so on. But it may matter if your destructor performs IOs. For instance automatic C++ OStream locally created won't be flushed on a call to exit and you may lose some u...
Union Vs Concat in Linq
... (i.e. address in memory). When you create new object via new operator, it allocates memory at new address. So, when you have four new created objects, addresses will be different. And all objects will be distinct. Thus Distinct will return all objects from sequence.
– Sergey B...
Check for column name in a SqlDataReader object
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You're enumerating the field names multiple times / allocating another array to scan with a contains, this would be much less performant in high traffic code.
– Chad Grant
Oct 4 '19 at 17:44
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private final static attribute vs private final attribute
...es, Java has no pass by reference anyways). A real useful test would be to allocate two objects and change the value of a public final int FOO = 10 variable using Java reflections in a forced way. Then check if the other object has also changed its value.
– Martijn Courteaux
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