[new.badlength] # 17 Language support library [[support]](./#support) ## 17.6 Dynamic memory management [[support.dynamic]](support.dynamic#new.badlength) ### 17.6.4 Storage allocation errors [[alloc.errors]](alloc.errors#new.badlength) #### 17.6.4.2 Class bad_array_new_length [new.badlength] namespace std {class bad_array_new_length : public bad_alloc {public:// see [[exception]](exception "17.9.3 Class exception") for the specification of the special member functionsconstexpr const char* what() const noexcept override; };} [1](#1) [#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/support.tex#L3062) 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]](expr.new "7.6.2.8 New"))[.](#1.sentence-1) [🔗](#lib:what,bad_array_new_length) `constexpr const char* what() const noexcept override; ` [2](#2) [#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/support.tex#L3074) *Returns*: An implementation-defined ntbs[.](#2.sentence-1)