std::bad_array_new_length
From cppreference.com
| Defined in header
<new>
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||
| class bad_array_new_length;
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(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
Contents |
[edit] Member functions
constructs the bad_array_new_length object (public member function) |
Inherited from std::bad_alloc
Inherited from std::exception
Member functions
| [virtual]
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destructs the exception object (virtual public member function of std::exception)
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| [virtual]
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returns an explanatory string (virtual public member function of std::exception)
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[edit] Notes
The override for the virtual member function what() may by provided, but is not required.
[edit] 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'; } }
[edit] See also
| allocation functions (function) |
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| exception thrown when memory allocation fails (class) |