Following the discussion on my answer to this question, apparently: the following code is allowed struct Foo {
I heard about placement new operator of C++. I am confused what it is. However, I can see where it can be used under a question in stackoverflow. I am also confused whether we have this in java or not
Background开发者_StackOverflow: I have a complicated class with many variables.I have a sound and tested copy constructor:
Here\'s my code: struct RS_Token { char id; char cleanup; unsigned char array[sizeof (std::string) > sizeof (double) ? sizeof (std::string) : sizeof (double)];
Just out of curiosity, is the following legal? X* p = static_cast<X*>(operator new[](3 * sizeof(X)));
If I have a container: std::vector<T*> elements; can I use placement new to allocate my objects so that the objects are all allocate开发者_如何学Pythond contiguously? So that I can do somethi
I am having a problem with the placement new operator. I have two programs: Program1 (operator.cpp) and Program2 (main.cpp):
I am just porting some old code: #define NewArrayOnHeap(TYPE, COUNT, HEAP, NEWPTR, ERROR) \\ ((*(NEWPTR) = new ( #TYPE "[" #COUNT "]", __alignof(TYPE), (HEAP), &hr, (ERROR)) TY
In the use of \"placement new\" it is suggested to call the cons开发者_Go百科tructor and destructor explicitly.
I\'m writing a garbage collector for C/C++ as a programming exercise, and part of this involves globally overriding new. However, the garbage collector also uses an unordered_map (to store pointers to
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