Cpp Standard Library 简明教程

C++ Library - <new>

Introduction

它是一个用于描述在 C++ 中管理动态存储的函数的头文件。此头文件还定义了一些特定的类型和 set_new_handler / get_new_handler 函数对，如下所示 −

It is a header describes functions used to manage dynamic storage in C++.The header also defines some specific types and the set_new_handler / get_new_handler pair of functions as shown below −

Functions

Sr.No.	Function & description
1	operator newIt allocates storage space.
2	operator new[]It allocates storage space for array.
3	operator deleteIt deallocates storage space.
4	operator delete[]It deallocates storage space of array.
5	get_new_handler It is used to get new handler function.

Types

Sr.No.	Type & description
1	nothrow_tIt is a nathrow type.
2	new_handlerIt is a type of new handler function.
3	bad_allocIt is an exception and throws on failure allocating memory.
4	bad_array_new_lengthIt is a bad array length exception.

Constants

Sr.No.

Constant & description

nothrowIt is a nathrow constants.