c – 如何在iOS上检查指针是指向堆还是堆栈内存？

http://www.gnu.org/software/libc/manual/html_node/Heap-Consistency-Checking.html

OS便携式堆检测的更新帖子：

否则,您可以通过覆盖new()& delete()来创建自己的堆内存管理器,记录所有堆内存分配/解除分配,然后添加自己的堆检测功能;示例如下：

// Untested pseudo code follows:
//
#include <mutex>
#include <map>
#include <iostream>

std::mutex g_i_mutex;
std::map<size_t,void*> heapList;

void main()
{
   char var1[] = "Hello";
   char *var2 = new char[5];

   if (IsHeapBlock(&var1))
      std::cout "var1 is allocated on the heap";
   else
      std::cout "var1 is allocated on the stack";

   if (IsHeapBlock(var2))
      std::cout "var2 is allocated on the heap";
   else
      std::cout "var2 is allocated on the stack";

   delete [] var2;
}

// Register heap block and call then malloc(size)
void *operator new(size_t size) 
{
   std::lock_guard<std::mutex> lock(g_i_mutex);
   void *blk = malloc(size);
   heapList.Add((size_t)blk,blk);
   return blk;
}

// Free memory block
void operator delete(void *p)
{
   std::lock_guard<std::mutex> lock(g_i_mutex);
   heapList.erase((size_t)p);
   free(p);
}

// Returns True if p points to the start of a heap memory block or False if p
// is a Stack memory block or non-allocated memory
bool IsHeapBlock(void *p)
{
   std::lock_guard<std::mutex> lock(g_i_mutex);
   return heapList.find((size_t)p) != heapList.end();
}

void *operator new[] (size_t size)
{
   return operator new(size);
}

void operator delete[] (void * p)
{
   operator delete(p);
}