std::bad_array_new_length
From cppreference.com
| Defined in header <new>
|
||
| class bad_array_new_length; |
(since C++11) | |
std::bad_array_new_length is the type of the object thrown as exceptions by the new-expressions to report invalid array lengths if
1) array length is negative
2) total size of the new array would exceed implementation-defined maximum value
3) the number of initializer-clauses exceeds the number of elements to initialize
Only the first array dimension may generate this exception; dimensions other than the first are constant expressions and are checked at compile time.
Inheritance diagram
Member functions
constructs the bad_array_new_length object (public member function) |
Inherited from std::bad_alloc
Inherited from std::exception
Member functions
| [virtual] |
destructs the exception object (virtual public member function of std::exception) |
| [virtual] |
returns an explanatory string (virtual public member function of std::exception) |
Notes
The override for the virtual member function what() may by provided, but is not required.
Example
Three conditions where std::bad_array_new_length should be thrown:
Run this code
#include <iostream> #include <new> #include <climits> int main() { int negative = -1; int small = 1; int large = INT_MAX; try { new int[negative]; // negative size new int[small]{1,2,3}; // too many initializers new int[large][1000000]; // too large } catch(const std::bad_array_new_length &e) { std::cout << e.what() << '\n'; } }
See also
| allocation functions (function) | |
| exception thrown when memory allocation fails (class) |