User-Defined New and Delete Cannot be Declared in a Namespace

Operators new and delete can be declared in a class scope. However, the Standard prohibits declarations of these operators in a namespace. Why is this? Consider the following example:

 char *pc; namespace A { void operator new ( size_t ); void operator delete ( void * );void func () {	  pc = new char ( 'a');}}void f() { delete pc; } // which version of delete to call, A::delete or standard delete? 

Some programmers would expect the operator A::delete to be selected since it matches the operator new that was used to allocate the storage. Others would expect the standard operator delete to be called since A::delete is not visible in function f. By prohibiting declarations of new and delete in a namespace, you can avoid this hassle.

Share the Post:
Share on facebook
Share on twitter
Share on linkedin


The Latest

microsoft careers

Top Careers at Microsoft

Microsoft has gained its position as one of the top companies in the world, and Microsoft careers are flourishing. This multinational company is efficiently developing popular software and computers with other consumer electronics. It is a dream come true for so many people to acquire a high paid, high-prestige job

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS