#includeThis example defines a function `IsMemoryGood` that checks whether a given pointer points to valid memory. The function is then passed as an argument to `TestMemory` along with a pointer, and the memory validity is tested using the `mem_ptr_t IsGood` function pointer type. The output of the program indicates whether the memory is good or not. Overall, without more information about the package library, it's hard to determine the exact purpose and implementation of `mem_ptr_t IsGood`.#include using mem_ptr_t = bool (*)(void*); bool IsMemoryGood(void* ptr) { if (ptr == nullptr) { return false; } // null pointer auto p = std::get_temporary_buffer (1).first; if (p == nullptr) { return false; } // allocation failed std::return_temporary_buffer(p); return true; // memory is good } void TestMemory(int* ptr, mem_ptr_t IsGood) { if (IsGood(ptr)) { std::cout << "Memory is good!" << std::endl; } else { std::cout << "Memory is bad, can't access it!" << std::endl; } } int main() { int* ptr = new int[10]; // allocate memory TestMemory(ptr, IsMemoryGood); // test memory validity delete[] ptr; // deallocate memory return 0; }