Title  
 Function specifications 

  Function  
 Memory block free 

  Function Name  
 MEM_Free 

No
3

 
  format  voidMEM_Free (void * mem_ptr)
 Input  mem_ptr: Pointer to memory block
 Output  None
 Function value  None
 Function  The specified memory block is released. The memory block that can be specified is MEM_Calloc,
  Secured by MEM_Malloc, MEM_Realloc. 

  Title  
 Function specifications 

  Function  
 Secure memory block 

  Function Name  
 MEM_Malloc 

No
4

 
  format  void * MEM_Malloc (Uint32 mem_size)
 Input  mem_size: Requested memory block size (byte specification)
 Output  None
 Function value  Returns a pointer to the allocated memory area when the process ends normally. NULL on error
Returns  .
 Function  A memory block for the requested memory block size is secured in the memory management area, and its pointer
Returns  . If the requested memory block size is 0, NULL is returned as the function value. Initial at 0
 is not changed to . 

  Title  
 Function specifications 

  Function  
 Memory reallocation 

  Function Name  
 MEM_Realloc 

No
5

 
  format  void * MEM_Realloc (void * mem_ptr, Uint32 mem_size)
 Input  mem_ptr: Pointer to the previous memory block
:  mem_size: New memory block size (byte specification)
 Output  None
 Function value  If normal, returns a pointer to the reallocated memory. NULL on error
 Returns .
 Function  The memory block size of the pointer to the memory block before the designation is changed to the new memory block.
 Change to  size. The contents of the previous memory block are reassigned to the new area.
Transferred to  .