[new.handler]

# 17 Language support library [[support]](./#support)

## 17.6 Dynamic memory management [[support.dynamic]](support.dynamic#new.handler)

### 17.6.4 Storage allocation errors [[alloc.errors]](alloc.errors#new.handler)

#### 17.6.4.3 Type new_handler [new.handler]

[🔗](#lib:new_handler)

`using new_handler = void (*)();
`

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/support.tex#L3087)

The type of a[*handler function*](#def:handler_function) to be called byoperator new() oroperator new[]() ([[new.delete]](new.delete "17.6.3 Storage allocation and deallocation")) when they cannot satisfy a request for additional storage[.](#1.sentence-1)

[2](#2)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/support.tex#L3095)

*Required behavior*: A new_handler shall perform one of the following:

- [(2.1)](#2.1)

make more storage available for allocation and then return;

- [(2.2)](#2.2)

throw an exception of typebad_alloc or a class derived frombad_alloc;

- [(2.3)](#2.3)

terminate execution of the program without returning to the caller[.](#2.sentence-1)