C++ How to allocate memory dynamically on stack?

Question

Is there a way to allocate memory on stack instead of heap? I can\'t find a good book on this, anyone here got an idea?

Answer 1

You could use the BDE C++ library, e.g.

const int BUFFER_SIZE = 1024;
char      buffer[BUFFER_SIZE];

bdlma::BufferedSequentialAllocator allocator(buffer, BUFFER_SIZE);
bsl::vector                   dataVector(&allocator);

dataVector.resize(50);

BDE supplies comprehensive allocator options along with collections like bsl::vector that can use polymorphic allocators without changing the type of the container.

You might also consider:

• https://github.com/facebook/folly/blob/master/folly/docs/small_vector.md
• http://www.boost.org/doc/libs/1_55_0/doc/html/container/non_standard_containers.html#container.non_standard_containers.static_vector
• http://llvm.org/docs/doxygen/html/classllvm_1_1SmallVector.html