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#include <array>
#include <cstddef>
namespace Pinetime {
namespace Utility {
template <typename T, size_t N>
class StaticStack {
public:
T Pop();
void Push(T element);
void Reset();
T Top();
private:
std::array<T, N> elementArray;
// Number of elements in stack, points to the next empty slot
size_t stackPointer = 0;
};
// Returns random data when popping from empty array.
template <typename T, size_t N>
T StaticStack<T, N>::Pop() {
if (stackPointer > 0) {
stackPointer--;
}
return elementArray[stackPointer];
}
template <typename T, size_t N>
void StaticStack<T, N>::Push(T element) {
if (stackPointer < elementArray.size()) {
elementArray[stackPointer] = element;
stackPointer++;
}
}
template <typename T, size_t N>
void StaticStack<T, N>::Reset() {
stackPointer = 0;
}
template <typename T, size_t N>
T StaticStack<T, N>::Top() {
return elementArray[stackPointer - 1];
}
}
}
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