# std::ios_base::~ios_base

From cppreference.com
< cpp‎ | io‎ | ios base

virtual ~ios_base(); |  |

Destroys the `ios_base` object.

Before any of the member functions would yield undefined results, calls callbacks, registered by `register_callback()` passing `erase_event` as parameter. Then, deallocates any memory obtained.

No operations on `rdbuf` are performed, it is not destroyed.

### Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR | Applied to | Behavior as published | Correct behavior
--- | --- | --- | ---
LWG 3434 | C++98 | the destructor was not required to reclaim memory for `iarray` and `parray` | required

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