std::free
From cppreference.com
                    
                                        
                    
                    
                                                            
                    |   Defined in header <cstdlib>
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|   void free( void* ptr );  | 
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Deallocates the space previously allocated by malloc(), calloc() or realloc(). If ptr is null-pointer, the function does nothing.
The behavior is undefined if ptr does not match a pointer returned earlier by malloc(), calloc() or realloc(). Also, the behavior is undefined if the memory area referred to by ptr has already been deallocated, that is, free() or {{rlpf|has already been called with ptr as the argument and no calls to malloc(), calloc() or realloc() resulted in a pointer equal to ptr afterwards.
Contents | 
[edit] Parameters
| ptr | - | pointer to the memory to deallocate | 
[edit] Return value
(none)
[edit] Example
| This section is incomplete Reason: no example  | 
[edit] See also
|   C documentation for free 
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