17 Language support library [language.support]

17.6 Dynamic memory management [support.dynamic]

17.6.3 Storage allocation errors [alloc.errors]

17.6.3.2 Class bad_­array_­new_­length [new.badlength]

namespace std {
  class bad_array_new_length : public bad_alloc {
  public:
    // see [exception] for the specification of the special member functions
    const char* what() const noexcept override;
  };
}
The class bad_­array_­new_­length defines the type of objects thrown as exceptions by the implementation to report an attempt to allocate an array of size less than zero or greater than an implementation-defined limit ([expr.new]).
const char* what() const noexcept override;
Returns: An implementation-defined ntbs.