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T *p1 = new T; // Throws std::bad_alloc if allocation fails T *p2 = new (std::nothrow) T; // Returns nullptr if allocation fails T *p3 = new T[1]; // Throws std::bad_alloc if the allocation fails T *p4 = new (std::nothrow) T[1]; // Returns nullptr if the allocation fails |
In additionFurthermore, operator new[], a subclass of std::bad_alloc, can can throw an error of type std::bad_array_new_length if , a subclass of std::bad_alloc, if the size argument passed to new is negative or excessively large.
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