Does Windows "Over" Allocate?

malloc_maybe.cpp

#include <iostream>
#include <fstream>
#include <malloc.h>
#include <cassert>

int main() {
	std::ofstream output{ "results-release.csv" };
	uint64_t max_alloc_request_size = 16*1024;
	uint64_t alloc_request_size = 0;
	for (; alloc_request_size < max_alloc_request_size; alloc_request_size++) {
		void* leaked = malloc(alloc_request_size);
		assert(leaked != NULL);
		auto alloc_actual_size = _msize(leaked);
		output << alloc_request_size << ", " << alloc_actual_size << "\n";
		free(leaked);
	}
	output.close();
}