Does STL Vector use 'new' and 'delete' for memory allocation by default?

Question

I am working on a plugin for an application, where the memory should be allocated by the Application and keep track of it. Hence, memory handles should be obtained from the host

Answer 1

std::vector uses the unitialized_* functions to construct its elements from raw memory (using placement new). It allocates storage using whatever allocator it was created with, and by default, that allocator uses ::operator new(size_t) and ::operator delete(void *p) directly (i.e., not a type specific operator new).